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Department Of Public Works And Highways - DPWH Tender

Corrigendum : Closing Date Modified

Closing Soon30 Jan 2025

Tender AmountPHP 68.6 Million (USD 1.1 Million)

Details: Description Republic Of The Philippines Department Of Public Works And Highways Mindoro Oriental District Engineering Office Masipit, Calapan City, Oriental Mindoro, Mimaropa Region (iv-b) October 22, 2024 Invitation To Bid For The Following Projects: (gaa Fy 2025 Projects) 1. 25ed0001 – Construction Of Concrete Road, So. Star Apple, Poblacion, Baco, Oriental Mindoro 2. 25ed0002 - Construction Of Concrete Road, Barangay Malabo, Victoria, Oriental Mindoro 3. 25ed0003 - Construction Of Concrete Road, San Agustin 2, Naujan, Oriental Mindoro 4. 25ed0004 - Construction Of Drainage, Sitio Crossing, Brgy. Calsapa, San Teodoro, Oriental Mindoro 5. 25ed0005 – Construction Of Pedestrian Overpass At Calapan South Rd – K0006+000, Calapan City, Oriental Mindoro 6. 25ed0006 - Construction Of Tawiran – Guinobatan Bypass Road, Calapan City, Oriental Mindoro 7. 25ed0007 - Construction Of Bucayao – Panggalaan River Control At Barangay Buhuan, Calapan City, Oriental Mindoro 8. 25ed0008 - Construction Of Road (phase Iii) Sitio Olivo, Mabuhay I, Socorro, Oriental Mindoro 9. 25ed0009 - Construction Of Road, Barangay Mayabig, Baco, Oriental Mindoro 10. 25ed0010 - Construction Of Road, Sitio Buhuan, Barangay Comunal, Calapan City, Oriental Mindoro 11. 25ed0011 - Construction Of Road, Sitio Goldenville, Barangay San Rafael, Calapan City, Oriental Mindoro 12. 25ed0012 - Construction Of Road, Sitio Pandayan, Barangay Santa Rita, Calapan City, Oriental Mindoro 13. 25ed0013 - Construction Of Multi – Purpose Building (covered Court), Community Vocational High School, Barangay Masipit, Calapan City, Oriental Mindoro 14. 25ed0014 - Construction Of Multi – Purpose Building, Zone 4, Socorro, Oriental Mindoro 15. 25ed0015 - Construction Of Road Dike, Barangay Bagong Buhay, Naujan, Oriental Mindoro 16. 25ed0016 - Construction Of Flood Control Structure, Sitio Caguisikan, Barangay Gutad, Calapan City, Oriental Mindoro 17. 25ed0017 - Construction Of Seawall Structure, Sitio Proper, Barangay Navotas, Calapan City, Oriental Mindoro 18. 25ed0018 - Construction Of Seawall Structure, Barangay Pachoca, Calapan City, Oriental Mindoro 19. 25ed0019 - Construction Of Flood Control Structure, Barangay Managpi, Calapan City, Oriental Mindoro 1. The Department Of Public Works And Highways – Mindoro Oriental District Engineering Office, Through The Gaa 2025 Intends To Apply The Sums Below Of Being The Approved Budget For The Contract (abc) To Payments Under The Contract For The Following. Bids Received In Excess Of The Abc Shall Be Automatically Rejected At Bid Opening. Contract I.d. No. Approved Budget For The Contract 25ed0001 Php 4,900,000.00 25ed0002 Php 4,900,000.00 25ed0003 Php 9,800,000.00 25ed0004 Php 4,900,000.00 25ed0005 Php 24,500,000.00 25ed0006 Php 68,600,000.00 25ed0007 Php 49,000,000.00 25ed0008 Php 4,900,000.00 25ed0009 Php 4,900,000.00 25ed0010 Php 4,900,000.00 25ed0011 Php 4,900,000.00 25ed0012 Php 4,950,000.00 25ed0013 Php 4,950,000.00 25ed0014 Php 4,950,000.00 25ed0015 Php 98,000,000.00 25ed0016 Php 99,646,400.00 25ed0017 Php 68,600,000.00 25ed0018 Php 29,400,000.00 25ed0019 Php 99,000,000.00 2. The Department Of Public Works And Highways – Mindoro Oriental District Engineering Office Through Its Bids And Awards Committee Now Invites Bids For The Hereunder Works: 2.1 Contract I.d. No. : 25ed0001 Name Of Contract : Construction Of Concrete Road, So. Star Apple, Poblacion, Baco, Oriental Mindoro Location : Baco, Oriental Mindoro Scope Of Works : 1. Concreting Of 479.90 L.m. Road (width=5.00 M. 0.20 M. Thk. Pccp, 0.20 Thk. Aggregate Subbase Course) With 1.00 M. Asbc Shoulder At Sta. 0+000.00 – Sta. 0+069.00 And 0.50 M. Asbc Shoulder At Sta. 0+153.10 – Sta. 0+564.00 And Construction Of Slope Protection. Approved Budget For The Contract : Php 4,900,000.00 Contract Duration : 69 C.d. 2.2 Contract I.d. No. : 25ed0002 Name Of Contract : Construction Of Concrete Road, Barangay Malabo, Victoria, Oriental Mindoro Location : Victoria, Oriental Mindoro Scope Of Works : 1. Remove Pccp Width Of 4.0 M. & Replace Pccp Width Of 5.0m.; Thickness=0.20 M. Aggregate Subbase Course Thickness = 0.20 M. Length Road I = 440.00 M. Length Road Ii = 96.00 M. Approved Budget For The Contract : Php 4,900,000.00 Contract Duration : 88 C.d. 2.3 Contract I.d. No. : 25ed0003 Name Of Contract : Construction Of Concrete Road, San Agustin 2, Naujan, Oriental Mindoro Location : Naujan, Oriental Mindoro Scope Of Works : 1. Concreting Of 5 M. Width Road (thickness = 0.20 M., Aggregate Subbase Course Thickness = 0.20), With 1 M. Gravel Shoulder Both Sides; With Total Length Of 715.50 M.; With Stone Masonry Slope Protection At Intermittent Section. 2. Concreting Of 5 M. Width Road (thickness = 0.20 M., Aggregate Subbase Course Thickness = 0.20) Without Shoulder With Total Length Of 223.50 M. Approved Budget For The Contract : Php 9,800,000.00 Contract Duration : 131 C.d. 2.4 Contract I.d. No. : 25ed0004 Name Of Contract : Construction Of Drainage, Sitio Crossing, Brgy. Calsapa, San Teodoro, Oriental Mindoro Location : San Teodoro, Oriental Mindoro Scope Of Works : Construction Of Drainage: Total Length = 284.50 L.m. Canal I: Closed Canal Depth = 1.50 M. Length = 140.00 Width = 3.0 M. Canal Ii: Open Canal R/s Depth = 1.40 M. Length = 144.50 Width = 0.70 M. Approved Budget For The Contract : Php 4,900,000.00 Contract Duration : 151 C.d. 2.5 Contract I.d. No. : 25ed0005 Name Of Contract : Construction Of Pedestrian Overpass At Calapan South Rd – K0006+000, Calapan City, Oriental Mindoro Location : Calapan City, Oriental Mindoro Scope Of Works : Construction Of 18.8 M. Footbridge, 2 Units Of 3.00 M. X 1.09 M. Box Culvert With Lengths Of 26 L.m. And 27 L.m. Approved Budget For The Contract : Php 24,500,000.00 Contract Duration : 250 C.d. 2.6 Contract I.d. No. : 25ed0006 Name Of Contract : Construction Of Tawiran – Guinobatan Bypass Road, Calapan City, Oriental Mindoro Location : Calapan City, Oriental Mindoro Scope Of Works : 1. Concreting Of 1,166.50 L.m. Of Road (width = 13.4 M., 0.30m. Thk. Pccp, 0.20 M. Thk. Aggregate Subbase Course) With Gravel Shoulder On B/s W = Varies 2. Construction Of 64.00 L.m. Of Slope Protection On B/s. 3. Construction Of 18.00 L.m. Rcdg Bridge. Approved Budget For The Contract : Php 68,600,000.00 Contract Duration : 360 C.d. 2.7 Contract I.d. No. : 25ed0007 Name Of Contract : Construction Of Bucayao – Panggalaan River Control At Barangay Buhuan, Calapan City, Oriental Mindoro Location : Calapan City, Oriental Mindoro Scope Of Works : Construction Of 120.00 L.m. Concrete Revetment Resting On Concrete Pile Cap With 12 M. Steel Sheet Piles (u-type Iii) Approved Budget For The Contract : Php 49,000,000.00 Contract Duration : 273 C.d. 2.8 Contract I.d. No. : 25ed0008 Name Of Contract : Construction Of Road (phase Iii) Sitio Olivo, Mabuhay I, Socorro, Oriental Mindoro Location : Socorro, Oriental Mindoro Scope Of Works : 1. Concreting Of 5 M. Width Road (thk = 0.20 M.) With Total Length Of 361.00 M. With Slope Protection At Intermittent Section. Approved Budget For The Contract : Php 4,900,000.00 Contract Duration : 69 C.d. 2.9 Contract I.d. No. : 25ed0009 Name Of Contract : Construction Of Road, Barangay Mayabig, Baco, Oriental Mindoro Location : Baco, Oriental Mindoro Scope Of Works : 1. Concreting Of 366.00 L.m. Of Road (width = 5.0 M., 0.20 Thk. Pccp, 0.20 M. Thk. Aggregate Subbase Course) With 1.00 M. Asbc Shoulder And Construction Of Slope Protection. Approved Budget For The Contract : Php 4,900,000.00 Contract Duration : 69 C.d. 2.10 Contract I.d. No. : 25ed0010 Name Of Contract : Construction Of Road, Sitio Buhuan, Barangay Comunal, Calapan City, Oriental Mindoro Location : Calapan City, Oriental Mindoro Scope Of Works : 1. Concreting Of 5 M. Width Road (thk = 0.20 M.) With Total Length Of 330.00 M. 2. Construction Of Slope Protection – 282.80 L.m. On L.s. And 322.80 L.m. On R.s. 3. Installation Of 6.00 L.m. Rcpc, Diameter = 0.60 M., With Headwall. Approved Budget For The Contract : Php 4,900,000.00 Contract Duration : 70 C.d. 2.11 Contract I.d. No. : 25ed0011 Name Of Contract : Construction Of Road, Sitio Goldenville, Barangay San Rafael, Calapan City, Oriental Mindoro Location : Calapan City, Oriental Mindoro Scope Of Works : 1. Concreting Of 5.00 M. Width Road (thk = 0.23 M.) With Total Length Of 446 M. With 1.00 M. Width Shoulder Of Aggregate Subbase Course 0.20 M. Thick. Approved Budget For The Contract : Php 4,900,000.00 Contract Duration : 74 C.d. 2.12 Contract I.d. No. : 25ed0012 Name Of Contract : Construction Of Road, Sitio Pandayan, Barangay Santa Rita, Calapan City, Oriental Mindoro Location : Calapan City, Oriental Mindoro Scope Of Works : 1. Construction Of Road: Width = 5.0 M.; Thickness = 0.20 M.; Length = 405.50 M. Aggregate Subbase Course Thickness = 0.20 M. 2. Road I: Construction Of Rcpc 0.60 M. Diameter @ Sta. 00+272.00 And With Slope Protection On R/s, Length = 338.00 M. 3. Edge Protection: Road I: Length = 338.00 M. (left Side); Road Ii: Length = 67.50 M. (both Sides) Approved Budget For The Contract : Php 4,950,000.00 Contract Duration : 69 C.d. 2.13 Contract I.d. No. : 25ed0013 Name Of Contract : Construction Of Multi – Purpose Building (covered Court), Community Vocational High School, Barangay Masipit, Calapan City, Oriental Mindoro Location : Calapan City, Oriental Mindoro Scope Of Works : Construction Of 13.00 M. X 27.00 M. Covered Court With 9.00 M. X 7.00 M. Stage With Cr, Ceiling Works, Tile Works, Plumbing And Electrical Works With Flashing, Gutter, Catch Basin, Painting Works Of Steel And Masonry, Electrical Works With 60 Ln.m. Of Trench Drain Approved Budget For The Contract : Php 4,950,000.00 Contract Duration : 180 C.d. 2.14 Contract I.d. No. : 25ed0014 Name Of Contract : Construction Of Multi – Purpose Building, Zone 4, Socorro, Oriental Mindoro Location : Socorro, Oriental Mindoro Scope Of Works : Construction Of 15.00 M. X 27.00 M. Covered Court With Sidings Enclosure Of Court, With Stage (9.0 M. X 5.0 M.) 2 Steps Of Bleachers (27.00 Lm), Painting Works And Plumbing Works, Electrical Works Embankment 0.40 M. Approved Budget For The Contract : Php 4,950,000.00 Contract Duration : 180 C.d. 2.15 Contract I.d. No. : 25ed0015 Name Of Contract : Construction Of Road Dike, Barangay Bagong Buhay, Naujan, Oriental Mindoro Location : Naujan, Oriental Mindoro Scope Of Works : Construction Of 138.40 L.m. Road Dike With Geotube Resting On Concrete Pile Cap With 12 M. Steel Sheet Piles (u-type Iii) Approved Budget For The Contract : Php 98,000,000.00 Contract Duration : 333 C.d. 2.16 Contract I.d. No. : 25ed0016 Name Of Contract : Construction Of Flood Control Structure, Sitio Caguisikan, Barangay Gutad, Calapan City, Oriental Mindoro Location : Calapan City, Oriental Mindoro Scope Of Works : Construction Of 362.40 L.m. Concrete Revetment Resting On Concrete Pile Cap With 9 M. Steel Sheet Piles (u-type Iii) Approved Budget For The Contract : Php 99,646,400.00 Contract Duration : 333 C.d. 2.17 Contract I.d. No. : 25ed0017 Name Of Contract : Construction Of Seawall Structure, Sitio Proper, Barangay Navotas, Calapan City, Oriental Mindoro Location : Calapan City, Oriental Mindoro Scope Of Works : Construction Of 541.60 L.m. Of Seawall Structure Resting On Concrete Pile Cap With 3 M. Steel Sheet Piles U-type Iii Approved Budget For The Contract : Php 68,600,000.00 Contract Duration : 314 C.d. 2.18 Contract I.d. No. : 25ed0018 Name Of Contract : Construction Of Seawall Structure, Barangay Pachoca, Calapan City, Oriental Mindoro Location : Calapan City, Oriental Mindoro Scope Of Works : Construction Of 111.20 L.m. Concrete Revetment Resting On Concrete Pile Cap With 9 M. Steel Sheet Piles (u-type Iii) Approved Budget For The Contract : Php 29,400,000.00 Contract Duration : 226 C.d. 2.19 Contract I.d. No. : 25ed0019 Name Of Contract : Construction Of Flood Control Structure, Barangay Managpi, Calapan City, Oriental Mindoro Location : Calapan City, Oriental Mindoro Scope Of Works : Construction Of 278.00 L.m. Concrete Revetment Resting On Concrete Pile Cap With 12 M. Steel Sheet Piles (u-type Iii) Approved Budget For The Contract : Php 99,000,000.00 Contract Duration : 333 C.d. Bidders Should Have Completed A Contract Similar To The Project. Prospective Bidders Should Be Registered With And Classified By The Philippine Contractors Accreditation Board (pcab) With Pcab License Category. The Description Of An Eligible Bidders Is Contained In The Bidding Documents, Particularly, In Section Ii (instruction To Bidders). Contractors/applicants Who Wish To Participate In This Bidding Are Encouraged To Enroll In The Dpwh Civil Works Application (cwa) At The Dpwh Procurement Service (prs), 5th Floor, Dpwh Bldg., Bonifacio Drive, Port Area, Manila, While Those Already Enrolled Shall Keep Their Records Current Updated. The Contractor’s Eligibility To Bid On The Project Will Be Determined Using The Dpwh Contractor Profile Eligibility Process (cpep) And Subject To Further Post-qualification. Information On Registration Can Be Obtained From The Prs During Working Weekdays From 8:00 Am To 5:00 Pm Or At The Dpwh Website Www.dpwh.gov.ph. 3. In View Of The Full Implementation On Assigning Only Qualified And Competent Engineers Of The Contractors And Consultants In The Implementation Of Dpwh Projects, Please Be Reminded Of Department Order No. 98 S. 2016 “limits Of Assignment Of Contractors’/consultants’ Materials Engineers” And Department Order No. 118 S. 2024 “guideline On The Accreditation And Assignment Of Contractor’s And Consultants’ Project Engineers”. 4. Bidding Will Be Conducted Through Open Competitive Bidding Procedures Using Non-discretionary “pass/fail” Criterion As Specified In The 2016 Revised Implementing Rules And Regulations (irr) Of Republic Act 9184 (ra 9184). 5. Prospective Bidders May Obtain Further Information From The Department Of Public Works And Highways, Mindoro Oriental District Engineering Office And Inspect The Bidding Documents At The Address Given Below During 8:00 Am To 5:00 Pm. 6. A Complete Set Of Bidding Documents May Be Acquired By Interested Bidders On October 22 – November 12, 2024 From The Given Address And Website/s Below And Upon Payment Of The Applicable Fee For The Bidding Documents, Pursuant To The Latest Guidelines Issued By The Gppb, In The Following Amounts: Contract I.d. Number Amount 25ed0001 Php 5,000.00 25ed0002 Php 5,000.00 25ed0003 Php 10,000.00 25ed0004 Php 5,000.00 25ed0005 Php 25,000.00 25ed0006 Php 50,000.00 25ed0007 Php 25,000.00 25ed0008 Php 5,000.00 25ed0009 Php 5,000.00 25ed0010 Php 5,000.00 25ed0011 Php 5,000.00 25ed0012 Php 5,000.00 25ed0013 Php 5,000.00 25ed0014 Php 5,000.00 25ed0015 Php 50,000.00 25ed0016 Php 50,000.00 25ed0017 Php 50,000.00 25ed0018 Php 25,000.00 25ed0019 Php 50,000.00 7. The Bidding Documents May Also Be Downloaded Free Of Charge From The Website Of The Philippine Government Electronic Procurement System (philgeps), And The Website Of The Procuring Entity, Provided That Bidders Shall Pay The Applicable Fee For The Bidding Documents Not Later Than The Submission Of Their Bids. 8. The Department Of Public Works And Highways, Mindoro Oriental District Engineering Office Will Hold A Pre-bid Conference On October 29, 2024 @ 9:30 A.m. At Bidding Room, Dpwh – Modeo, Masipit, Calapan City, Oriental Mindoro And/or Through Video Conferencing Or Webcasting Via Zoom Which Shall Be Open To Prospective Bidders. 9. Bid Submission Maybe Done Manually Or Electronically/online. However, Bidders Should Only Select One Mode Of Submission, Either Manual Or Electronic. Similar To Manual Submission, The Guidelines For The Preparation And Submission Of An Electronic Bid Are Contained In The Bds. 10. Bids Must Be Duly Received By The Bac Secretariat At The Address Below For Manual Submission Or At Electronicbids_mindorooriental@dpwh.gov.ph For Electronic Submission On Or Before November 12, 2024 @ 10:00 A.m. Late Bids Shall Not Be Accepted. 11. All Bids Must Be Accompanied By A Bid Security In Any Of The Acceptable Forms And In The Amount Stated In Itb Clause 15. 12. Bid Opening Shall Be On November 12, 2024, Immediately After The Deadline For The Submission Of Bid At Bidding Room, Dpwh – Modeo, Masipit, Calapan City, Oriental Mindoro And/or Through Zoom. Bids Will Be Opened In The Presence Of The Bidders’ Representatives Who Choose To Attend The Activity. 13. The Department Of Public Works And Highways, Mindoro Oriental District Engineering Office Reserves The Right To Reject Any And All Bids, Declare A Failure Of Bidding, Or Not Award The Contract At Any Time Prior To Contract Award In Accordance With Section 35.6 And 41 Of The 2016 Revised Implementing Rules And Regulations (irr) Of Ra 9184, Without Thereby Incurring Any Liability To The Affected Bidder Or Bidders. 14. For Further Information, Please Refer To: Engr. Agnes M. Bueno Department Of Public Works And Highways Mindoro Oriental District Engineering Office Masipit, Calapan City, Oriental Mindoro Bueno.agnes@dpwh.gov.ph (043) 288-9365 Albien M. Mahia Bac Chairperson

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Department Of Public Works And Highways - DPWH Tender

Philippines

Closing Date11 Feb 2025

Tender AmountPHP 120.6 Million (USD 2 Million)

Details: Description Ib: 25df0107-25df0113 Page 1 Of 4 Website: Www.dpwh.gov.ph Tel. No(s).: (046) 404 5474 Republic Of The Philippines Department Of Public Works And Highways Office Of The District Engineer Cavite 1 St District Engineering Office Brgy. De Ocampo, Trece Martires City Invitation To Bid 1. The Department Of Public Works And Highways (dpwh), Cavite 1 St District Engineering Office, Through Its Bids And Awards Committee Now Invites Bids For The Hereunder Works: 1. Name Of Contract : Convergence And Special Support Program Basic Infrastructure Program (bip) Bip - Access Roads And/or Bridges From The National Road/s Leading To Major/ Strategic Public Buildings/ Facilities Construction Of Road, Barangay Navarro, General Trias City, Cavite Contract Id No. : 25df0107 Contract Location : General Trias City, Cavite Scope Of Works : Construction Of Road Net Length : 0.3886 Lane Km. Road (2 Lanes) Approved Budget For The Contract : ₱ 6,930,000.00 Source Of Funds : Fy 2025 Gaa For Dpwh Infra Program Contract Duration : 46 C.d. Size Range : Small B License Category : C & D Cost Of Bidding Documents : ₱ 10,000.00 2. Name Of Contract : Organizational Outcome 1 : Ensure Safe And Reliable National Road System Asset Preservation Program Rehabilitation/reconstruction/upgrading Of Damaged Paved Roads - Secondary Roads Noveleta-naic-tagaytay Rd - K0064 + 669 - K0065 + 313 Contract Id No. : 25df0108 Contract Location : Indang, Cavite Scope Of Works : Road Re-blocking Net Length : 1.266 Lane Km. Road Approved Budget For The Contract : ₱ 16,944,200.00 Source Of Funds : Fy 2025 Gaa For Dpwh Infra Program Contract Duration : 80 C.d. Size Range : Small B License Category : C & D Cost Of Bidding Documents : ₱ 25,000.00 3. Name Of Contract : Organizational Outcome 1 : Ensure Safe And Reliable National Road System Asset Preservation Program Preventive Maintenance - Tertiary Road Noveleta Div Rd (s01772lz) - K0025 + (-021) - K0026 + 300 Contract Id No. : 25df0109 Contract Location : Noveleta, Cavite Scope Of Works : Asphalt Overlay Of Road Net Length : 5.038 Lane Km. Road Approved Budget For The Contract : ₱ 96,500,000.00 Source Of Funds : Fy 2025 Gaa For Dpwh Infra Program Contract Duration : 121 C.d. Size Range : Medium A License Category : B Cost Of Bidding Documents : ₱ 50,000.00 4. Name Of Contract : Organizational Outcome 1 : Ensure Safe And Reliable National Road System Asset Preservation Program Preventive Maintenance - Primary Road Noveleta-rosario Div Rd (s06095lz) - K0026 + 338 - K0027 + 438 Contract Id No. : 25df0110 Contract Location : Noveleta, Cavite Scope Of Works : Asphalt Overlay Of Road Net Length : 5.511 Lane Km. Road Approved Budget For The Contract : ₱ 99,395,000.00 Source Of Funds : Fy 2025 Gaa For Dpwh Infra Program Contract Duration : 129 C.d. Size Range : Medium A License Category : B Cost Of Bidding Documents : ₱ 50,000.00 5. Name Of Contract : Organizational Outcome 2 : Protect Lives And Properties Against Major Floods Flood Management Program Construction/ Maintenance Of Flood Mitigation Structures And Drainage Systems Construction Of Road Dike Along Pasong Balite River, Cavite Government Center, Phase 4, Barangay San Agustin, Trece Martires City, Cavite Contract Id No. : 25df0111 Contract Location : Trece Martires City, Cavite Scope Of Works : Construction Of Slope Protection With Road Construction Net Length : 328.00 Lm Slope Protection With 1.294 Lane Km. Road Approved Budget For The Contract : ₱ 115,800,000.00 Source Of Funds : Fy 2025 Gaa For Dpwh Infra Program Contract Duration : 292 C.d. Size Range : Medium A License Category : B Cost Of Bidding Documents : ₱ 50,000.00 6. Name Of Contract : Organizational Outcome 2 : Protect Lives And Properties Against Major Floods Flood Management Program Construction/ Maintenance Of Flood Mitigation Structures And Drainage Systems Construction Of Road Dike Along Pasong Balite River, Cavite Government Center, Phase 3, Barangay San Agustin, Trece Martires City, Cavite Contract Id No. : 25df0112 Contract Location : Trece Martires City, Cavite Scope Of Works : Construction Of Slope Protection With Road Construction Net Length : 207.00 Lm Slope Protection With 2.29 Lane Km. Road Approved Budget For The Contract : ₱ 115,800,000.00 Source Of Funds : Fy 2025 Gaa For Dpwh Infra Program Contract Duration : 292 C.d. Size Range : Medium A License Category : B Cost Of Bidding Documents : ₱ 50,000.00 Ib: 25df0107-25df0113 Page 2 Of 4 7. Name Of Contract : Organizational Outcome 2 : Protect Lives And Properties Against Major Floods Flood Management Program Construction/ Maintenance Of Flood Mitigation Structures And Drainage Systems Construction Of Road Dike Along Pasong Balite River, Cavite Government Center, Phase 2, Barangay San Agustin, Trece Martires City, Cavite Contract Id No. : 25df0113 Contract Location : Trece Martires City, Cavite Scope Of Works : Construction Of Slope Protection With Road Construction Net Length : 277.00 Lm Slope Protection With 1.506 Lane Km. Road Approved Budget For The Contract : ₱ 120,625,000.00 Source Of Funds : Fy 2025 Gaa For Dpwh Infra Program Contract Duration : 294 C.d. Size Range : Medium A License Category : B Cost Of Bidding Documents : ₱ 50,000.00 Bids Received In Excess Of The Abc Shall Be Automatically Rejected At Bid Opening. 2. Prospective Bidders Should Be (1) Registered With And Classified By The Philippine Contractors Accreditation Board (pcab) With Pcab License Category And Classification As Indicated On The Above Table. The Description Of An Eligible Bidder Is Contained In The Bidding Documents, Particularly, In Section Ii Of Bidding Documents. Contractors/applicants Who Wish To Participate In This Bidding Are Encouraged To Enroll In The Dpwh Civil Works Application (cwa) At The Dpwh Procurement Service (prs), 5 Ib: 25df0107-25df0113 Page 3 Of 4 Th Floor, Dpwh Bldg., Bonifacio Drive, Port Area, Manila, While Those Already Enrolled Shall Keep Their Records Current And Updated. The Contractor’s Eligibility To Bid On The Project Will Be Determined Using The Dpwh Contractor Profile Eligibility Process (cpep) And Subject To Further Post-qualification. Information On Registration Can Be Obtained From The Prs During Working Weekdays From 8:00 Am To 5:00 Pm Or At The Dpwh Website Www.dpwh.gov.ph. 3. Bidding Will Be Conducted Through Open Competitive Bidding Procedures Using Non-discretionary Pass/fail Criterion As Specified In The 2016 Revised Implementing Rules And Regulations (irr) Of Republic Act 9184 (ra 9184), Otherwise Known As The "“government Procurement Reform Act”. The Contract Shall Be Awarded To The Lowest Calculated Responsive Bidder (lcrb) Who Was Determined As Such During Post-qualification. 4. Interested Bidders May Obtain Further Information From The Department Of Public Works And Highways (dpwh), Cavite 1 St District Engineering Office, And Inspect The Bidding Documents At The Address Given Below During Weekdays From 8am – 5pm. 5. A Complete Set Of Bidding Documents May Be Acquired By Interested Bidders On January 21 – February 11, 2025 @ 8am-5pm From The Address Below And Upon Payment Of The Applicable Fee For The Bidding Documents (amount Indicated On The Above Table). It May Also Be Downloaded Free Of Charge From The Website Of The Philippine Government Electronic Procurement System (philgeps), And The Website Of The Procuring Entity, Provided That Bidders Shall Pay The Applicable Fee For The Bidding Documents Not Later Than The Submission Of Their Bids. 6. The Department Of Public Works And Highways (dpwh), Cavite 1 St District Engineering Office, Will Hold A Prebid Conference On January 28, 2025 @ 10:00 A.m. At Bidding Room, Dpwh Cavite 1 St District Engineering Office, Which Shall Be Open To Prospective Bidders. Bid Submission Maybe Done Manually Or Electronically/online. However, Bidders Should Only Select One Mode Of Submission, Either Manual Or Electronic. Similar To Manual Submission, The Guidelines For The Preparation And Submission Of An Electronic Bid Are Contained In The Bds. 7. Bids Must Be Duly Received By The Bac Secretariat At The Address Below For Manual Submission Or At Electronicbids_cavite1@dpwh.gov.ph For Electronic Submission On Or Before February 11, 2025 @ 10:00 A.m. 8. All Bids Must Be Accompanied By A Bid Security In Any Of The Acceptable Forms And In The Amount Stated In Itb Clause 15. 9. Bid Opening Shall Be On February 11, 2025 @ 10:00 A.m. At Bidding Room, Dpwh Cavite 1 St District Engineering Office Bids Will Be Opened In The Presence Of The Bidders’ Representatives Who Choose To Attend At The Address Below. Late Bids Shall Not Be Accepted. 10. If At The Time Of The Post – Qualification Procedure, The Bac Verifies That Any Of The Deficiencies Is Due To The Contractor’s Fault Or Negligence Pursuant To 34.3(b) (ii) Of The 2016 Revised Implementing Rules And Regulations Of Republic Act No. 9184 (2016 Rirr Of Ra 9184), The Procuring Entity Shall Disqualify The Contractor From The Award Without Any Right To Reimburse Fees And Incidental Cost Paid For The Procurement Of Infrastructure Contract Subject To Be Bid. 11. The Department Of Public Works And Highways (dpwh), Cavite 1 Ib: 25df0107-25df0113 Page 4 Of 4 St District Engineering Office, Reserves The Right To Reject Any And All Bids, Declare A Failure Of Bidding, Or Not Award The Contract At Any Time Prior To Contract Award In Accordance With Sections 35.6 And 41 Of The 2016 Revised Implementing Rules And Regulations (irr) Of Ra 9184, Without Thereby Incurring Any Liability To The Affected Bidder Or Bidders. 12. Strict Implementation R.a. No. 6685 Which Was Approved On December 12, 1998 That Provides: “all Private Contractors, Including Subcontractors, To Whom Awards Are Made For The Undertaking Of National And Local Public Works Funded By Either National Government Or Any Local Government Unit Including Foreign Assisted Projects Must Hire At Least Fifty Percent (50%) Of The Unskilled And Thirty Percent (30%) Of The Skilled Labor Requirements From The Unemployed Bona Fide And Actual Residents In The Province, City And Municipality Who Are Ready, Willing And Able As Determined By The Governor, City Mayor Or Municipal Mayor Concerned Where The Projects Are To Be Undertaken: Provided, That The Labor Used Or To Be Used For The Manufacture Of Prefabricated Construction Materials And Other Materials Premade Outside The Place Of Project Implementation And Skilled Manpower Utilizes Or To Be Utilized For The Preparation Of Engineering Designs And Project Plans And Layouts Shall Be Exempted From The Labor Requirements Shall Be Based On The Maximum Number Of Locally Available Labor Resources Which Fact Shall Be Certified By The Municipal, City, Provincial Or District Engineer As Sufficient Compliance With The Labor Requirements Under This Act.” 13. Requiring An Accredited Project Engineer To Be Assigned To The Project As Per D.o. 156 Series Of 2023 For Interested Bidders. 14. For Further Information, Please Refer To: Adonis B. Angelia Bac Chairperson Dpwh, Cavite 1 St Deo, Brgy. De Ocampo Trece Martires City, Cavite Telephone No. (046) 404-5474 Reynante B. Salazar, Sr. Bac Secretariat Head Dpwh, Cavite 1 St Deo, Brgy. De Ocampo Trece Martires City, Cavite Telephone No. (046) 404-5474 Department Of Public Works And Highways Cavite 1 St District Engineering Office Brgy. De Ocampo, Trece Martires City, Cavite 15. You May Visit The Following Websites: For Downloading Of Bidding Documents At Www.dpwh.gov.ph. For Online Bid Submission At Electronicbids_cavite1@dpwh.gov.ph. January 21, 2025 Approved By: Adonis B. Angelia Bac Chairperson Noted By: Rolando F. Valdez District Engineer

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Department Of Public Works And Highways - DPWH Tender

Philippines

Closing Date11 Feb 2025

Tender AmountPHP 96.5 Million (USD 1.6 Million)

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Department Of Public Works And Highways - DPWH Tender

Philippines

Closing Date11 Feb 2025

Tender AmountPHP 16.9 Million (USD 289.3 K)

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Department Of Public Works And Highways - DPWH Tender

Philippines

Closing Date11 Feb 2025

Tender AmountPHP 99.3 Million (USD 1.6 Million)

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Department Of Public Works And Highways - DPWH Tender

Philippines

Closing Date11 Feb 2025

Tender AmountPHP 115.8 Million (USD 1.9 Million)

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Department Of Public Works And Highways - DPWH Tender

Philippines

Closing Date11 Feb 2025

Tender AmountPHP 115.8 Million (USD 1.9 Million)

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DEPT OF THE ARMY USA Tender

United States

Closing Date18 Feb 2025

Tender AmountRefer Documents

Details: **projnet Information Can Be Found In #5 1. Contract Information: This Pre-solicitation Notice Is For Interested Firms To Submit Their Sf 330 By February 18, 2025, 14:00 Hours, Cst. Firms Will Be Selected For Negotiations Based On Demonstrated Competence And Qualifications For The Required Work. This Is Not A Request For Proposal (rfp). The Services To Be Procured Under This Announcement Are Classified In North American Industry Classification System Code 541330 Engineering Services With A Small Business Size Standard Of $25.5m. This Contract Is Being Procured In Accordance With The Brooks A-e Act As Implemented In Far Subpart 36.6. one Indefinite Delivery Contract (idc)willbe Negotiated And Awarded From This Solicitation. Work Will Be Accomplished Under An Idc Base, With A Performance Period Of Five (5) Years. Work Will Be Issued By Negotiated Firm Fixed-price Or Labor-hour Task Orders. The Cumulative Total Of Task Orders Issued Over The Life Of The Contract Shall Not Exceed A Capacity Of $5.0 Million. This Idc Contract Will Have A $1,000 Minimum Guarantee. Allocation Of Task Orders Will Be Based On Specialized Experience, Past Performance, Project Schedules, And/or Current Workload. the Work Consists Of Professional A-e Services Required For Performing Hydraulic And Hydrologic Modeling, Geographic Information Systems (gis) And Mapping, Economic Consequences Assessment, Corps Water Management System (cwms), Cwms Control And Visualization Interface (cavi) Integration, Documentation, And Other Related Engineering Services To Support Requirements Of The U.s. Army Corps Of Engineers (usace) Modeling, Mapping, And Consequences (mmc) Production Center. The Scope Of These Services And Project Locations Are Nationwide. 2. Project Information: The U.s. Army Corps Of Engineers (usace) Dam And Levee Safety Programs And The Office Of Homeland Security (ohs) Have Tasked The Mmc To Develop, On An Expedited Schedule, Dam Break Flood Inundation Modeling And Mapping For Usace Inventory Of 700 Plus Water Resources Projects (dams). These Efforts Will Support National Critical Infrastructure Protection Responsibilities Led By Usace Under The Dam Safety And Levee Safety Programs Portfolio Development And Undergo Risk Assessments Led By The Risk Management Center (rmc). The Mmc Production Center Was Also Charged With Supporting The Hydraulics, Hydrology, And Coastal Engineering (hh&c) Community Of Practice Community In Producing H&h Cwms Suites Of Models For All 201 Usace Operational Watersheds. The Usace's Vision Is To Achieve A Safe, Secure, And More Resilient Corps Civil Works Infrastructure By Enhancing Its Protection To Prevent, Deter, Or Mitigate The Potential For Dam And Levee Failure And Improve Preparedness, Response, And Rapid Recovery In The Event Of An Attack, Natural Disaster, And Other Emergencies. A Major Initiative Within This Effort Involves The Development Of Cwms Suite Of Models, Dam Break Flood Hydraulic Models, Inundation Mapping, And Consequence Estimates. Lastly, The Mmc Production Center Also Is Currently Supporting Fema With Its Methodology Development And Production For Its Future Of Flood Risk Data (ffrd) Initiative. Components Of The Initiatives Above Include: cwms Cavi Development And Implementation To Support Daily H&h Water Management Activities. Cwms Cavi Is The Interface That Contains The Four Main Modeling Components (hms, Ressim, Ras, And Fia) And Oversees And Controls The Operation Of The Models As They Work Together In The System. Additional Components May Include Regi And Metvue. Regi Is An Interface That Uses The Information In The Cwms Database To Display Reports, Charts/graphs, And Other Information Such As Performing Simple Calculations. Metvue Is A Tool That Facilitates Viewing And Manipulation Of Meteorological Datasets As Well As Performing A Variety Of Computations And Analyses, Including Temporal And Spatial Aggregation Of Datasets And Areal Average Computations. hms, Ressim, Ras, Fia, And Cavi Improvements To Support District Implementation Of Cwms, And The Production Of Specified Inundation Map Layers. development Of Static Map Libraries And Consequences For The Rapid Inundation Mapping (rim) Builder In Accordance With Mmc Standard Operating Procedures (sop). This Shall Include One-dimensional, Two-dimensional, And Integrated One/two Dimensional Hydraulic Models From Cwms, Over A Variety Of Specified Hydraulic Scenarios. support For The Flood Inundation Mapping (fim) Cadre, Including The Development Of Two Dimensional Modeling Efforts And Consequence Models. development Of Updated Dam And/or Levee Break Flood Models, Inundation Mapping, And Consequence Estimates Using Hec-ras And Lifesim In Accordance With Mmc Standard Operating Procedures (sop). This Shall Include One-dimensional, Two-dimensional, And Integrated One/two Dimensional Hydraulic Model Efforts, Over A Variety Of Specified Hydraulic Scenarios. applying And Testing H&h Modeling, Statistical Modeling, And Gis Mapping Capabilities. identify Standard Scenario Conditions As A Foundation For Dam Safety Emergency Action Plans (eaps) Mapping Requirements. incorporate Into Usace Inundation Maps Guidance For Above Normal Operational Dam Control Conditions. support In The Preparation And Update Of Water Control Manuals (wcm) For Dams Within Usace, To Include Authoring Chapters Of The Water Control Manual, Graphs, Plots, Maps, Tables, Research, Editorial Support, Printing, And Preparation Of Electronic And Paper Documents. creation Of Custom Gis/geospatial Tools For Use In The Automation Of Mmc Mapping Production Work Flows And H&h Data Analysis. leverage H&h Modeling And Gis Mapping Capabilities And Resources Via Close Coordination With Usace Risk Management Center (rmc), Levee Safety Center (lsc), Mapping Modeling And Consequences Production Center (mmc) And/or Dam Safety Modification Center (dsmc). the H&h, Statistical, And Geospatial Aspects Of Levee Safety Engineering And Design Services Including Support Of Site Characterization Studies, Engineering Evaluations And Analyses In Support Of Hydrologic (e.g. Inflow Design Flood), Consequence Studies, Levee Screenings, Feasibility Studies, Preliminary Designs, Value Engineering, Constructability Reviews, Or Other Analyses Or Studies Related To The Levee Safety Programs. These Services Shall Include Evaluation Of Bridges, Gates, Spillways, Pumping Stations And Other Appurtenant Structures Attached To Levees As Necessary To Characterize The Project As A Whole. the H&h, Statistical, And Geospatial Aspects Of Risk Analysis Services Involving Risk Methodology And Policy Development, Quantitative And Screening-level Risk Analyses For Dams And Levees, Issue Evaluation Studies, Existing Condition Risk Assessments, Periodic Assessments, Determination Of Total And Incremental Risk Reduction Benefits That Can Be Realized From Corrective Actions, Report Preparation And Other Risk Related Studies And Evaluations Under The Levee Safety Program. h&h, Statistical, And Geospatial Technical Review Services Including Subject Matter Expert Or Independent External Peer Reviews Of Reports, Studies, Risk Analyses, Risk Assessments, Design Documents, Construction Drawings And Specifications, Construction Cost Estimates, Constructability Reviews, And Physical Construction. development Of Two-dimensional Hec-ras Models At The Huc-4 Watershed Level As Will Be Defined By The Sop To Support Fema’s Ffrd Initiative. 3. Selection Criteria: Selection Will Be Based On The Following Considerations, Which Are Listed In Descending Order Of Importance. Criteria A Thru D Are Primary. Criteria E Thru F Are Secondary And Will Only Be Used As A “tie- Breaker,” If Necessary, In Ranking The Most Highly Qualified Firms. The Firm (either In House Or Through Association With A Qualified Consultant(s)) Must Demonstrate: (a) Specialized Experience And Technical Competence: List No More Than 10 Projects That Best Illustrate Current Qualifications, Relevant Project Experience And Technical Competence Of The Firm And Consultants In The Work Described In Items I-vii Below. (i) H&h Experience In Producing Hydraulic Modeling, Mapping, And Consequence Analysis Via Utilization Of Such Software As Hec-ras, Hec-hms, Hec-ressim, Cwms Cavi, , , Hec-fia, Hec-lifesim, Hec-metvue, Arcgis Pro; (ii) Experience In The Operation, Design, And General Knowledge Of Large Scale Basins, Dams, Rivers, And Water Control Structures; (iii) Experience In Processing And Delivering Large Scale Hydraulic Modeling And Gis Data For Numerous Simultaneous Projects; (iv) Experience In Developing A Consistent And Scalable Suite Of Hydraulic Models For Basins And Dams Capable Of Providing Consistent And Reliable Estimation Of The Risks To Society From Damaging Releases From Dams, Extreme Floods, Or Failures Due To Natural Disasters, Flaws, Or Attacks; (v) Experience In Developing Consistent Mapping For Delineation Of Flooded Areas Used To Compute Scalable Consequence Data That Will Provide Consistent Consequence Estimates Of Population At Risk (par), Potential Life Loss (ll), And Estimated Dollars Impacts (vi) Experience In Developing Consistent Mapping For Emergency Action Plans (eap) That Shows Delineation Of Flooded Areas And/or Gis Products To Minimize Societal Impacts From Damaging Releases From Dams; (vii) Experience In Developing And Documenting Consistent Gis, Consequence, And Modeling & Mapping Standards; And (vii) Experience Performing Gis Enterprise Systems Implementation Projects To Include Activities Such As Planning, Requirements, Design, Programming, Implementation, Support, And Application Hosting Within The Esri Technology Environments. (b) Professional Qualifications: The Firm Must Indicate Professional Registration And Work Experience Of Key Personnel. The Firm Should Emphasize Professional Registrations, Advanced Degrees, Certifications, And Specific Work Experience Of Key Personnel In Project Managers, Hydrologic And Hydraulic Engineering, Gis/cartography, Economics, And Technical Writing/editing. The Selected Firm Should Also Indicate Adequate Management Personnel With Required Qualifications And Experience To Assure Prompt Response To Assignments. (c) Capacity To Accomplish The Work: The Firm Should Indicate The Ability To Perform Numerous Projects At The Same Time Regardless Of Unexpected Equipment Breakdowns, And/or Personnel Problems; And Complete Work In A Timely Manner. (d) Knowledge Of The Usace Operational Basins And Water Control Structure Inventory. (e) Past Performance: Consideration Will Be Given To Ratings On Previous Dod Contracts For Engineering Services. (f) Equitable Distribution Of Dod Contracts. Consideration Will Be Given To Volume Of Dod A-e Contract Awards In The Last 12 Months, With The Objective Of Effecting An Equitable Distribution Of Dod A-e Contracts Among Qualified Firms, Including Sb And Sdb. Firms Should Cite All Contract Numbers, Award Dates And Total Negotiated Fees For Any Dod Contract Awarded Within The Last 12 Months. Include Delivery Orders Awarded Your Firm By Dod Agencies Within The Last 12 Months Under Indefinite Delivery Type Contracts. Modifications To Contracts Or Task Orders That Were Awarded Prior To The Last 12 Months Need Not Be Listed. 4. Submission Requirements: Interested Firms Having The Capabilities For This Work Must Submit One Electronic Copy (in Pdf Format) Of Sf 330 Along With A Signed Copy Of Part Ii Of Each Sub-consultant’s Sf 330 To: Mvkaecoordinator@usace.army.mil And Haleigh.j.erwin@usace.army.mil No Later Than 2:00 Pm Central On 18 February 2025. Include Both The Solicitation Number And The Company’s Unique Entity Id Number On All Submittals. Include Unique Entity Id Numbers In Block 9 For All Firms Listed In The Sf 330. note The Following Restrictions On Submittal - Resumes Of Key Persons, Specialists And Individual Consultants (section E) Anticipated For This Contract Will Be Limited To A Maximum Of 20 Typed Pages. Pages In Excess Of The Maximum Of 20 Will Be Discarded And Not Used In The Evaluations. Additional Information (section H) Will Be Limited To A Maximum Of 20 Pages. All Telephone Calls Should Be Directed To Ms. Michelle Moore, (601) 631-5139 Or Email Michelle.moore@usace.army.mil. *** Appointments Will Not Be Scheduled For The Purpose Of Discussing This Announcement *** this Is Not A Request For Proposal (rfp). A Fee/price Solicitation Will Be Issued At A Later Date, To The Firm Determined To Be The Most Highly Qualified. note: Contractors Must Be Registered In The System For Award Management (sam), For Information See Http: Www.sam.gov. 5. All Technical Inquiries And Questions Related To This Solicitation Shall Be Submitted Via Projnet. technical Inquiries And Questions Relating To This Solicitation Are To Be Submitted Via Bidder Inquiry In Projnet At (https://www.projnet.org). Bidders Are Encouraged To Submit Questions 5 Days Prior To Bid Opening To Ensure Adequate Time Is Allotted To Form An Appropriate Response And Amend The Solicitation, If Necessary. To Submit And Review Inquiry Items, Prospective Vendors Will Need To Use The Bidder Inquiry Key Presented Below And Follow The Instructions Listed Below The Key For Access. A Prospective Vendor Who Submits A Comment /question Will Receive An Acknowledgement Of Their Comment/question Via Email, Followed By An Answer To The Comment/question After It Has Been Processed By Our Technical Team. all Timely Questions And Approved Answers Will Be Made Available Through Projnet. the Solicitation Number Is: W912ee25o0002 the Bidder Inquiry Key Is:nthbht-i56c4t specific Instructions For Projnet Bid Inquiry Access: 1. From The Projnet Home Page Linked Above, Click On Quick Add On The Upper Right Side Of The Screen. 2. Identify The Agency. This Should Be Marked As Usace. 3. Key. Enter The Bidder Inquiry Key Listed Above. 4. Email. Enter The Email Address You Would Like To Use For Communication. 5. Click Continue. A Page Will Then Open Saying That A User Account Was Not Found And Will Ask You To Create One Using The Provided Form. 6. Enter Your First Name, Last Name, Company, City, State, Phone, Email, Secret Question, Secret Answer, And Time Zone. Make Sure To Remember Your Secret Question And Answer As They Will Be Used From This Point On To Access The Projnet System. 7. Click Add User. Once This Is Completed You Are Now Registered Within Projnet And Are Currently Logged Into The System. specific Instructions For Future Projnet Bid Inquiry Access: 1. For Future Access To Projnet, You Will Not Be Emailed Any Type Of Password. You Will Utilize Your Secret Question And Secret Answer To Log In. 2. From The Projnet Home Page Linked Above, Click On Quick Add On The Upper Right Side Of The Screen. 3. Identify The Agency. This Should Be Marked As Usace. 4. Key. Enter The Bidder Inquiry Key Listed Above. 5. Email. Enter The Email Address You Used To Register Previously In Projnet. 6. Click Continue. A Page Will Then Open Asking You To Enter The Answer To Your Secret Question. 7. Enter Your Secret Answer And Click Login. Once This Is Completed You Are Now Logged Into The System.

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BARANGAY STA ROSA, BALANGIGA EASTERN SAMAR Tender

Philippines

Closing Date12 Feb 2025

Tender AmountPHP 500 K (USD 8.5 K)

Details: Description S P E C I F I C A T I O N S B.5 Project Billboard The Contractor Shall Install One (1) Billboard Measuring 8 Ft. X 8 Ft. Tarpaulin, In Front Of The Project Site. Project Billboard Shall Be Installed For Government Information Projects To Inform The Public Of The Implementation Of The Project And To Advise The Road Users Of The On-going Construction. Upon Completion Of The Work, All Signs Installed Shall Be Removed From The Site. 102(1) Roadway Excavation Removal Of Unsuitable Material Where The Plans Show The Top Portion Of The Roadbed To Be Selected Topping, All Unsuitable Materials Shall Be Excavated To The Depth Necessary For Replacement Of The Selected Topping To The Required Compacted Thickness. Where Excavation To The Finished Graded Section Results In A Subgrade Or Slopes Of Unsuitable Soil, The Engineer May Require The Contractor To Remove The Unsuitable Material And Backfill To The Finished Graded Section With Approved Material. The Contractor Shall Conduct His Operations In Such A Way That The Engineer Can Take The Necessary Cross-sectional Measurements Before The Backfill Is Placed. The Excavation Of Muck Shall Be Handled In A Manner That Will Not Permit The Entrapment Of Muck Within The Backfill. The Material Used For Backfilling Up To The Ground Line Or Water Level, Whichever Is Higher, Shall Be Rock Or Other Suitable Granular Material Selected From The Roadway Excavation, If Available. If Not Available, Suitable Material Shall Be Obtained From Other Approved Sources. Unsuitable Material Removed Shall Be Disposed Off In Designated Areas Shown On The Plans Or Approved By The Engineer. Item 201 – Aggregate Base Course 201.1 Description This Item Shall Consist Of Furnishing, Placing And Compacting An Aggregate Base Course On A Prepared Sub-grade/sub-base In Accordance With This Specification And The Lines, Grades, Thickness And Typical Cross-sections Shown On The Plans, Or As Established By The Lgu Project Engineer. 201.2 Material Requirements Aggregate For Base Course Shall Consist Of Hard, Durable Particles Or Fragments Of Crushed Stone, Crushed Slag Or Crushed Or Natural Gravel And Filler Of Natural Or Crushed Sand Or Other Finely Divided Mineral Matter. The Composite Material Shall Be Free From Vegetable Matter And Lumps Or Balls Of Clay, And Shall Be Of Such Nature That It Can Be Compacted Readily To Form A Firm, Stable Base. In Some Areas Where The Conventional Base Course Materials Are Scarce Or Non-available, The Use Of 40% Weathered Limestone Blended With 60% Crushed Stones Or Gravel Shall Be Allowed, Provided That The Blended Materials Meet The Requirements Of This Item. The Base Course Material Shall Conform To Table 201.1, Whichever Is Called For In The Bill Of Quantities Table 201.1 – Grading Requirements Sieve Designation Mass Percent Passing Standard, Mm Alternate Us Standard Grading A Grading B 50 2” 100 37.5 1-1/2” - 100 25.0 1” 60 – 85 - 19.0 ¾” - 60 – 85 12.5 ½” 35 – 65 - 4.75 No. 4 20 – 50 30 – 55 0.425 No. 40 5 – 20 8 – 25 0.075 No. 200 0 – 12 2 – 14 The Fraction Passing The 0.075 Mm (no. 200) Sieve Shall Not Be Greater Than 0.66 (two Thirds) Of The Fraction Passing The 0.425 Mm (no. 40) Sieve. The Fraction Passing The 0.425 Mm (no. 40) Sieve Shall Have A Liquid Limit Not Greater Than 25 And Plasticity Index Not Greater Than 6 As Determined By Aashto T 89 And T 90, Respectively. The Coarse Portion, Retained On A 2.00 Mm (no. 10) Sieve Shall Have A Mass Percent Of Wear Not Exceeding 50 By The Los Angeles Abrasion Test Determined By Aashto T 96. The Material Passing The 19 Mm (3/4 Inch) Sieve Shall Have A Soaked Cbr Value Of Not Less Than 80% As Determined By Aashto T 193. The Cbr Value Shall Be Obtained At The Maximum Dry Density (mdd) As Determined By Aashto T 180, Method D. If Filler, In Addition To That Naturally Present, Is Necessary For Meeting The Grading Requirements Or For Satisfactory Bonding, It Shall Be Uniformly Blended With The Base Course Material On The Road Or In A Pug Mill Unless Otherwise Specified Or Approved. Filler Shall Be Taken From Sources Approved By The Lgu Project Engineer, Shall Be Free From Hard Lumps And Shall Not Contain More Than 15 Percent Of Material Retained On The 4.75 Mm (no. 4) Sieve. 201.3 Construction Requirements 201.3.1 Preparation Of Existing Surface The Existing Surface Shall Be Graded And Finished As Provided Under Item 105, Sub-grade Preparation, Before Placing The Base Material. 201.3.2 Placing It Shall Be In Accordance With All The Requirements Of Subsection 200.3.2, Placing. 201.3.3 Spreading And Compacting It Shall Be In Accordance With All The Requirements Of Subsection 200.3.3, Spreading And Compacting. 201.3.4 Additional Filler Additional Filler, When Required And When Not Added At The Screening Plant, Shall Be Spread In A Uniform Layer Over The Loosely Spread Base Material As Specified By The Lgu Project Engineer, Scarified By Appropriate Heavy Equipment And Then Watered And Mixed As Described Above. These Materials Are Incidental To The Work And No Payment Shall Be Made By The Project To The Contractor. 201.3.5 Trial Sections Trial Sections Shall Conform In All Respects To The Requirements Specified In Subsection 200.3.4. 201.3.6 Tolerances The Aggregate Base Course Shall Be Laid To The Designed Level And Transverse Slopes Shown On The Plans. The Allowable Tolerances Shall Be In Accordance With Following: Permitted Variation From Design Thickness Of Layer ± 10 Mm Permitted Variation From Design Level Of Surface + 5 Mm -10 Mm Permitted Surface Irregularity Measured By 3-m Straight-edge 5 Mm Permitted Variation From Design Crossfall Or Camber ± 0.2% Permitted Variation From Design Longitudinal Grade Over 25 M In Length ± 0.1% 201.4 Environmental Measures During The Course Of Hauling Operations, The Contractor Must At All Times Provide The Necessary Cover For The Dump Body Of The Hauling Equipment To Prevent Accidental Spoilage Of Earth Materials That Will Injure The Travelling Public Or People Living Near By. The Travel Route Of The Hauling Equipment’s Must Always Be Moist To Prevent Blowing Up Of Dusts Particles. Likewise, The Contractor Must Always Observe The Noise Level Of The Exhaust Mufflers Of The Heavy Equipment’s To Be At Minimum. Otherwise, Exhaust Muffler Must Be Provided With Silencers To Reduce Noise Levels Of The Hauling Equipment’s. Travelling Speed Of All Hauling Equipment’s Must Be Reduce When Passing Populated Areas Or At The School Site During School Days. Item 311 – Portland Cement Concrete Pavement 311.1 Description This Item Shall Consist Of Pavement Of Portland Cement Concrete, With Or Without Reinforcement, Constructed On The Prepared Base In Accordance With This Specification And In Conformity With Lines, Grades, Thickness And Typical Cross-section Shown On The Plans. 311.2 Material Requirements 311.2.1 Portland Cement Only Type I Portland Cement Shall Be Used Unless Otherwise Provided For In The Special Provisions. Different Brands Or The Same Brands From Different Mills Shall Not Be Mixed Nor Shall They Be Used Alternately Unless The Mix Is Approved By The Lgu Project Engineer. Cement Which For Any Reason Has Become Partially Set Or Which Contains Lumps Of Caked Cement Will Be Rejected. Cement Salvaged From Discarded Or Used Bags Shall Not Be Used. Samples Of Cement Shall Be Obtained In Accordance With Aashto T 127. 311.2.2 Fine Aggregate It Shall Consist Of Natural Sand, Stone Screenings Or Other Inert Materials With Similar Characteristics, Or Combinations Thereof, Having Hard, Strong And Durable Particles. Fine Aggregate From Different Sources Of Supply Shall Not Be Mixed Or Stored In The Same Pile Nor Used Alternately In The Same Class Of Concrete Without The Approval Of The Lgu Project Engineer. It Shall Not Contain More Than Three (3) Mass Percent Of Material Passing The 0.075 Mm (no. 200 Sieve) By Washing Nor More Than One (1) Mass Percent Each Of Clay Lumps Or Shale. The Use Of Beach Sand Will Not Be Allowed Without The Approval Of The Lgu Project Engineer. If The Fine Aggregate Is Subjected To Five (5) Cycles Of The Sodium Sulfate Soundness Test, The Weighted Loss Shall Not Exceed 10 Mass Percent. The Fine Aggregate Shall Be Free From Injurious Amounts Of Organic Impurities. If Subjected To The Colorimetric Test For Organic Impurities And A Color Darker Than The Standard Is Produced, It Shall Be Rejected. However, When Tested For The Effect Of Organic Impurities Of Strength Of Mortar By Aashto T 71, The Fine Aggregate May Be Used If The Relative Strength At 7 And 28 Days Is Not Less Than 95 Mass Percent. The Fine Aggregate Shall Be Well-graded From Coarse To Fine And Shall Conform To Table 311.1 Table 311.1 – Grading Requirements For Fine Aggregate Sieve Designation Mass Percent Passing 9.5 Mm (3/8 In) 100 4.75 Mm (no. 4) 95 – 100 2.36 Mm (no. 8) - 1.18 Mm (no. 16) 45 – 80 0.600 Mm (no. 30) - 0.300 Mm (no. 50) 5 – 30 0.150 Mm (no. 100) 0 – 10 311.2.3 Coarse Aggregate It Shall Consist Of Crushed Stone, Gravel, Blast Furnace Slag, Or Other Approved Inert Materials Of Similar Characteristics, Or Combinations Thereof, Having Hard, Strong, Durable Pieces And Free From Any Adherent Coatings. It Shall Contain Not More Than One (1) Mass Percent Of Material Passing The 0.075 Mm (no. 200) Sieve, Not More Than 0.25 Mass Percent Of Clay Lumps, Nor More Than 3.5 Mass Percent Of Soft Fragments. If The Coarse Aggregate Is Subjected To Five (5) Cycles Of The Sodium Sulfate Soundness Test, The Weighted Loss Shall Not Exceed 12 Mass Percent. It Shall Have A Mass Percent Of Wear Not Exceeding 40 When Tested By Aashto T 96. If The Slag Is Used, Its Density Shall Not Be Less Than 1120 Kg/m3 (70 Lb./cu. Ft.). The Gradation Of The Coarse Aggregate Shall Conform To Table 311.2. Only One Grading Specification Shall Be Used From Any One Source. Table 311.2 – Grading Requirement For Coarse Aggregate Sieve Designation Mass Percent Passing Standard Mm Alternate U. S. Standard Grading A Grading B Grading C 75.00 3 In. 100 - - 63.00 2-1/2 In. 90-100 100 100 50.00 2 In. - 90-100 95-100 37.5 1-1/2 In. 25-60 35-70 - 25.0 1 In. - 0-15 35-70 19.0 ¾ In. 0-10 - - 12.5 ½ In. 0-5 0-5 10-30 4.75 No. 4 - - 0-5 311.2.4 Water Water Used In Mixing, Curing Or Other Designated Application Shall Be Reasonably Clean And Free Of Oil, Salt, Acid, Alkali, Grass Or Other Substances Injurious To The Finished Product. Water Will Be Tested In Accordance With And Shall Meet The Requirements Of Item 714, Water. Water Which Is Drinkable May Be Used Without Test. Where The Source Of Water Is Shallow, The Intake Shall Be So Enclosed As To Exclude Silt, Mud, Grass Or Other Foreign Materials. 311.2.5 Reinforcing Steel It Shall Conform To The Requirements Of Item 404, Reinforcing Steel. Dowels And Tie Bars Shall Conform To The Requirements Of Aashto M 31 Or M 42, Except That Rail Steel Shall Not Be Used For Tie Bars That Are To Be Bent And Re-straightened During Construction. Tie Bars Shall Be Deformed Bars. Dowels Shall Be Plain Round Bars. Before Delivery To The Site Of Work, One-half Of The Length Of Each Dowel Shall Be Painted With One Coat Of Approved Lead Or Tar Paint. The Sleeves For Dowel Bars Shall Be Metal Of Approved Design To Cover 50 Mm ( 2 Inches), Plus Or Minus 5 Mm (1/4 Inch) Of The Dowel, With A Closed End, And With A Suitable Stop To Hold The End Of The Sleeve At Least 25 Mm (1 Inch) From The End Of The Dowel. Sleeves Shall Be Of Such Design That They Do Not Collapse During Construction. 311.2.6 Joint Fillers Poured Joint Fillers Shall Be Mixed Asphalt And Mineral Or Rubber Filler. Preformed Joint Filler Shall Conform To The Applicable Requirements. It Shall Be Punched To Admit The Dowels Where Called For In The Plans. The Filler For Each Joint Shall Be Furnished In A Single Piece For The Full Depth And Width Required For The Joint. 311.2.7 Admixtures Air-entraining Admixture Shall Conform To The Requirements Of Aashto M 154. Chemical Admixtures, If Specified Or Permitted, Shall Conform To The Requirements Of Aashto M 194. Fly Ash, If Specified Or Permitted As A Mineral Admixture And As 20% Partial Replacement Of Portland Cement In Concrete Mix Shall Conform To The Requirements Of Astm C 618. Admixture Should Be Added Only To The Concrete Mix To Produce Some Desired Modifications To The Properties Of Concrete Where Necessary, But Not As Partial Replacement Of Cement. 311.2.8 Curing Materials Curing Materials Shall Conform To The Following Requirements As Specified; A) Burlap Cloth - Aashto M 182 B) Liquid Membrane Forming Compounds - Aashto M 148 C) Sheeting (film) Materials - Aashto M 171 Cotton Mats And Water-proof Paper Can Be Used. 311.2.9 Calcium Chloride/calcium Nitrate It Shall Conform To Aashto M 144, If Specified Or Permitted By The Lgu Project Engineer, As Accelerator. 311.2.10 Storage Of Cement And Aggregate All Cement Shall Be Stored, Immediately Upon Delivery At The Site, In Weatherproof Building Which Will Protect The Cement From Dampness. The Floor Shall Be Raised From The Ground. The Buildings Shall Be Placed In Locations Approved By The Lgu Project Engineer. Provisions For Storage Shall Be Ample, And The Shipments Of Cement As Received Shall Be Separately Stored In Such A Manner As To Allow The Earliest Deliveries To Be Used First And To Provide Easy Access For Identification And Inspection Of Each Shipment. Storage Buildings Shall Have Capacity For Storage Of A Sufficient Quantity Of Cement To Allow Sampling At Least Twelve (12) Days Before The Cement Is To Be Used. Bulk Cement, If Used, Shall Be Transferred To Elevated Air Tight And Weatherproof Bins. Stored Cement Shall Meet The Test Requirements At Any Time After Storage When Retest Is Ordered By The Lgu Project Engineer. At The Time Of Use, All Cement Shall Be Free-flowing And Free Of Lumps. The Handling And Storing Of Concrete Aggregates Shall Be Such As To Prevent Segregation Or The Inclusion Of Foreign Materials. The Lgu Project Engineer May Require That Aggregates Be Stored On Separate Platforms At Satisfactory Locations. In Order To Secure Greater Uniformity Of Concrete Mix, The Lgu Project Engineer May Require That The Coarse Aggregate Be Separated Into Two Or More Sizes. Different Sizes Of Aggregate Shall Be Stored In Separate Bins Or In Separate Stockpiles Sufficiently Removed From Each Other To Prevent The Material At The Edges Of The Piles From Becoming Intermixed. 311.2.11 Proportioning, Consistency And Strength Of Concrete The Contractor Shall Prepare The Design Mix Based On The Absolute Volume Method As Outlined In The American Concrete Institute (aci) Standard 211.1, “recommended Practice For Selecting Proportions For Normal And Heavyweight Concrete”. It Is The Intent Of This Specification To Require At Least 364 Kg Of Cement Per Cubic Meter Of Concrete To Meet The Minimum Strength Requirements. The Lgu Project Engineer Shall Determine From Laboratory Tests Of The Materials To Be Used, The Cement Content And The Proportions Of Aggregate And Water That Will Produce Workable Concrete Having A Slump Of Between 40 And 75 Mm (1-1/2 And 3 Inches) If Not Vibrated Or Between 10 And 40 Mm (1/2 And 1-1/2 Inches) If Vibrated, And A Flexural Strength Of Not Less Than 3.8 Mpa (550 Psi) When Tested By The Third-point Method Or 4.5 Mps (650 Psi) When Tested By The Mid-point Method At Fourteen (14) Days In Accordance With Aashto T97 And T177, Respectively; Or A Compressive Strength Of 24.1 Mps (3500 Psi) For Cores Taken At Fourteen (14) Days And Tested In Accordance With Aashto T24. Slump Shall Be Determined Using Aashto T 119. The Designer Shall Consider The Use Of Lean Concrete (econcrete) Mixtures Using Local Materials Or Specifically Modified Conventional Concrete Mixes In Base Course And In The Lower Course Composite, Monolithic Concrete Pavements Using A Minimum Of 75 Mm (3 Inches) Of Conventional Concrete As The Surface Course. The Mix Design Shall Be Submitted To The Lgu Project Engineer For Approval And Shall Be Accompanied With Certified Test Data From An Approved Laboratory Demonstrating The Adequacy Of The Mix Design. A Change In The Source Of Materials During The Progress Of Work May Necessitate A New Design Mix. 311.3 Construction Requirements 311.3.1 Quality Control Of Concrete 1. General The Contractor Shall Be Responsible For The Quality Control Of All Materials During The Handling, Blending, And Mixing And Placement Operations. 2. Quality Control Plan The Contractor Shall Furnish The Lgu Project Engineer A Quality Control Plan Detailing His Production Control Procedures And The Type And Frequency Of Sampling And Testing To Insure That The Concrete Produces Complies With The Specifications. The Lgu Project Engineer Shall Be Provided Free Access To Recent Plant Production Records, And If Requested, Informational Copies Of Mix Design, Materials Certifications And Sampling And Testing Reports. 3. Qualification Of Workmen Experienced And Qualified Personnel Shall Perform All Batching Or Mixing Operation For The Concrete Mix, And Shall Be Present At The Plant And Job Site To Control The Concrete Productions Whenever The Plant Is In Operation. They Shall Be Identified And Duties Defined As Follows: A. Concrete Batcher. The Person Performing The Batching Or Mixing Operation Shall Be Capable Of Accurately Conducting Aggregate Surface Moisture Determination And Establishing Correct Scale Weights For Concrete Materials. He Shall Be Capable Of Assuring That The Proportioned Batch Weights Of Materials Are In Accordance With The Mix Design. B. Concrete Technician. The Person Responsible For Concrete Production Control And Sampling And Testing For Quality Control Shall Be Proficient In Concrete Technology And Shall Have A Sound Knowledge Of The Specifications As They Relate To Concrete Production. He Shall Be Capable Of Conducting Tests On Concrete And Concrete Materials In Accordance With These Specifications. He Shall Be Capable Of Adjusting Concrete Mix Designs For Improving Workability And Specification Compliance And Preparing Trial Mix Designs. He Shall Be Qualified To Act As The Concrete Batcher In The Batcher’s Absence. 4. Quality Control Testing The Contractor Shall Perform All Sampling, Testing And Inspection Necessary To Assure Quality Control Of The Component Materials And The Concrete. The Contractor Shall Be Responsible For Determining The Gradation Of Fine And Coarse Aggregates And For Testing The Concrete Mixture For Slump, Air Content, Water-cement Ratio And Temperature. He Shall Conduct His Operations So As To Produce A Mix Conforming To The Approved Mix Design. 5. Documentation The Contractor Shall Maintain Adequate Records Of All Inspections And Tests. The Records Shall Indicate The Nature And Number Of Observations Made, The Number And Type Of Deficiencies Found, The Quantities Approved And Rejected, And Nature Of Any Corrective Action Taken. The Lgu Project Engineer May Take Independent Assurance Samples At Random Location For Acceptance Purposes As He Deems Necessary. 311.3.2 Equipment Equipment And Tools Necessary For Handling Materials And Performing All Parts Of The Work Shall Be Approved By The Lgu Project Engineer As To Design, Capacity And Mechanical Condition. The Equipment Shall Be At The Jobsite Sufficiently Ahead Of The Start Of Construction Operations To Be Examined Thoroughly And Approved. 1. Batching Plant And Equipment A. General. The Batching Shall Include Bins, Weighing Hoppers, And Scales For The Fine Aggregate And For Each Size Of Coarse Aggregate. If Cement Is Used In Bulk, A Bin, A Hopper, And Separate Scale For Cement Shall Be Included. The Weighing Hopper Shall Be Properly Sealed And Vented To Preclude Dusting Operation. The Batch Plant Shall Be Equipped With A Suitable Non-resettable Batch Counter Which Will Correctly Indicate The Number Of Batches Proportioned. B. Bins And Hoppers. Bins With Adequate Separate Compartments For Fine Aggregate And For Each Size Of Coarse Aggregate Shall Be Provided In The Batching Plant. C. Scales. Scales For Weighing Aggregates And Cement Shall Be Of Either The Beam Type Or The Spring-less-dial Type. They Shall Be Accurate Within One-half Percent (0.5%) Throughout The Range Of Use. Poises Shall Be Designed To Be Locked In Any Position And To Prevent Unauthorized Change. Scales Shall Be Inspected And Sealed As Often As The Lgu Project Engineer May Deem Necessary To Assure Their Continued Accuracy. D. Automatic Weighing Devices. Unless Otherwise Allowed On The Contract, Batching Plants Shall Be Equipped With Automatic Weighing Devices Of An Approved Type To Proportion Aggregates And Bulk Cement. 2. Mixers. A. General. Concrete May Be Mixed At The Site Of Construction Or At A Central Plant, Or Wholly Or In Part In Truck Mixers. Each Mixer Shall Have A Manufacturer’s Plate Attached In A Prominent Place Showing The Capacity Of The Drum In Terms Of Volume Of Mixed Concrete And The Speed Of Rotation Of The Mixing Drum Or Blades. B. Mixers At Site Of Construction. Mixing Shall Be Done In An Approved Mixer Capable Of Combining The Aggregates, Cement And Water Into A Thoroughly Mixed And Uniform Mass Within The Specified Mixing Period And Discharging And Distributing The Mixture Without Segregation On The Prepared Grade. The Mixer Shall Be Equipped With An Approved Timing Device Which Will Automatically Lock The Discharge Lever When The Drum Has Been Charged And Released It At The End Of The Mixing Period. In Case Of Failure Of The Timing Device, The Mixer May Be Used For The Balance Of The Day While It Is Being Repaired, Provided That Each Batch Is Mixed 90 Seconds. The Mixer Shall Be Equipped With A Suitable Non-resettable Batch Counter Which Shall Correctly Indicate The Number Of The Batches Mixed. C. Truck Mixer And Truck Agitators. Truck Mixers Used For Mixing And Hauling Concrete, And Truck Agitators Used For Hauling Central-mixed Concrete, Shall Conform To The Requirements Of Aashto M 157. D. Non-agitator Truck. Bodies Of Non-agitating Hauling Equipment For Concrete Shall Be Smooth, Mortar-tight Metal Containers And Shall Be Capable Of Discharging The Concrete At A Satisfactory Controlled Rate Without Segregation. 3. Paving And Finishing Equipment The Concrete Shall Be Placed With An Approved Paver Designed To Spread, Consolidate, Screed And Float Finish The Freshly Placed Concrete In One Complete Pass Of The Machine In Such A Manner That A Minimum Of Hand Finishing Will Be Necessary To Provide A Dense And Homogeneous Pavement In Conformance With The Plans And Specifications. The Finishing Machine Shall Be Equipped With At Least Two (2) Oscillating Type Transverse Screed. Vibrators Shall Operate At A Frequency Of 8,300 To 9,600 Impulses Per Minute Under Load At A Maximum Spacing Of 60 Cm. 4. Concrete Saw The Contractor Shall Provide Sawing Equipment In Adequate Number Of Units And Power To Complete The Sawing With Water-cooled Diamond Edge Saw Blade Or An Abrasive Wheel To The Required Dimensions And At The Required Rate. He Shall Provide At Least One (1) Stand-by Saw In Good Working Condition And With An Ample Supply Of Saw Blades. 5. Forms Forms Shall Be Of Steel, Of An Approved Section, And Of Depth Equal To The Thickness Of The Pavement At The Edge. The Base Of The Forms Shall Be Of Sufficient Width To Provide Necessary Stability In All Directions. The Flange Braces Must Extend Outward On The Base To Not Less Than 2/3 The Height Of The Form. All Forms Shall Be Rigidly Supported On Bed Of Thoroughly Compacted Material During The Entire Operation Of Placing And Finishing The Concrete. Forms Shall Be Provided With Adequate Devices For Secure Setting So That When In Place, They Will Withstand, Without Visible Spring Or Settlement, The Impact And Vibration Of The Consolidation And Finishing Or Paving Equipment. 311.3.3 Preparation Of Grade After The Sub-grade Of Base Has Been Placed And Compacted To The Required Density, The Areas Which Will Support The Paving Machine And The Grade On Which The Pavement Is To Be Constructed Shall Be Trimmed To The Proper Elevation By Means Of A Properly Designed Machine Extending The Prepared Work Areas Compacted At Least 60 Cm Beyond Each Edge Of The Proposed Concrete Pavement. If Loss Of Density Results From The Trimming Operations, It Shall Be Restored By Additional Compaction Before Concrete Is Placed. If Any Traffic Is Allowed To Use The Prepared Sub-grade Or Base, The Surface Shall Be Checked And Corrected Immediately Ahead Of The Placing Concrete. The Sub-grade Or Base Shall Be Uniformly Moist When The Concrete Is Placed. 311.3.4 Setting Forms 1. Base Support. The Foundation Under The Forms Shall Be Hard And True To Grade So That The Form When Set Will Be Firmly In Contact For Its Whole Length And At The Specified Grade. (any Roadbed, Which At The Form Line Is Found Below Established Grade, Shall Be Filled With Approved Granular Materials To Grade In Lifts Of Three (3) Cm Or Less, And Thoroughly Re-rolled Or Tamped.) Imperfections Or Variations Above Grade Shall Be Corrected By Tamping Or By Cutting As Necessary. 2. Form Setting Forms Shall Be Set Sufficiently In Advance Of The Point Where Concrete Is Being Placed. After The Forms Have Been Set To Correct Grade, The Grade Shall Be Thoroughly Tamped, Mechanically Or By Hand, At Both The Inside And Outside Edges Of The Base Of The Forms. The Forms Shall Not Deviate From True Line Bv More Than One (1) Cm At Any Point. 3. Grade And Alignment The Alignment And Grade Elevations Of The Forms Shall Be Checked And Corrections Made By The Contractor Immediately Before Placing The Concrete. Testing As To Crown And Elevation, Prior To Placing Of Concrete Can Be Made By Means Of Holding An Approved Template In A Vertical Position And Moved Backward And Forward On The Forms. When Any Form Has Been Disturbed Or Any Grade Has Become Unstable, The Form Shall Be Reset And Rechecked. 311.3.5 Conditioning Of Sub-grade Or Base Course When Side Forms Have Been Securely Set To Grade, The Sub-grade Or Base Course Shall Be Brought To Proper Cross-section. High Areas Shall Be Trimmed To Proper Elevation. Low Areas Shall Be Filled And Compacted To A Condition Similar To That Of Surrounding Grade. The Finished Grade Shall Be Maintained In A Smooth And Compacted Condition Until The Pavement Is Placed. Unless Waterproof Sub-grade Or Base Course Cover Material Is Specified, The Sub-grade Or Base Course Shall Be Uniformly Moist When The Concrete Is Placed. If It Subsequently Becomes Too Dry, The Sub-grade Or Base Course Shall Be Sprinkled, But The Method Of Sprinkling Shall Not Be Such As To Form Mud Or Pools Of Water. 311.3.6 Handling, Measuring And Batching Materials The Batch Plant Site, Layout, Equipment And Provisions For Transporting Material Shall Be Such As To Assure A Continuous Supply Of Material To The Work. Stockpiles Shall Be Built Up In Layers Of Not More Than One (1) Meter In Thickness. Each Layer Shall Be Completely In Place Before Beginning The Next Which Shall Not Be Allowed To “cone” Down Over The Next Lower Layer. Aggregates From Different Sources And Of Different Grading Shall Not Be Stockpiled Together. All Washed Aggregates And Aggregates Produced Or Handled By Hydraulic Methods, Shall Be Stockpiled Or Binned For Draining At Least Twelve (12) Hours Before Being Batched. When Mixing Is Done At The Side Of The Work, Aggregates Shall Be Transported From The Batching Plant To The Mixer In Batch Boxes, Vehicle Bodies, Or Other Containers Of Adequate Capacity And Construction To Properly Carry The Volume Required. Partitions Separating Batches Shall Be Adequate And Effective To Prevent Spilling From One Compartment To Another While In Transit Or Being Dumped. When Bulk Cement Is Used, The Contractor Shall Use A Suitable Method Of Handling The Cement From Weighing Hopper To Transporting Container Or Into The Batch Itself For Transportation To The Mixer, With Chute, Boot Or Other Approved Device, To Prevent Loss Of Cement, And To Provide Positive Assurance Of The Actual Presence In Each Batch Of The Entire Cement Content Specified. Bulk Cement Shall Be Transported To The Mixer In Tight Compartments Carrying The Full Amount Of Cement Required For The Batch. However, If Allowed In The Special Provisions, It May Be Transported Between The Fine And Coarse Aggregate. When Cement Is Placed In Contact With The Aggregates, Batches May Be Rejected Unless Mixed Within 1-1/2 Hours Of Such Contact. Cement In Original Shipping Packages May Be Transported On Top Of The Aggregates, Each Batch Containing The Number Of Sacks Required By The Job Mix. The Mixer Shall Be Charged Without Loss Of Cement. Batching Shall Be So Conducted As To Result In The Weight To Each Material Required Within A Tolerance Of One (1) Percent For The Cement And Two (2) Percent For Aggregates. Water May Be Measured Either By Volume Or By Weight. The Accuracy Of Measuring The Water Shall Be Within A Range Of Error Of Not Over Than One (1) Percent. Unless The Water Is To Be Weighed, The Water-measuring Equipment Shall Include An Auxiliary Tank From Which The Measuring Tank Shall Be Equipped With An Outside Tap And Valve To Provide Checking The Setting, Unless Other Means Are Provided For Readily And Accurately Determining The Amount Of Water In The Tank. The Volume Of The Auxiliary Tank Shall Be At Least Equal To That Of The Measuring Tank. 311.3.7 Mixing Concrete The Concrete May Be Mixed At The Site Of The Work In A Central-mix Plant, Or In Truck Mixers. The Mixer Shall Be Of An Approved Type And Capacity. Mixing Time Will Be Measured From The Time All Materials, Except Water, Are In The Drum. Ready-mixed Concrete Shall Be Mixed And Delivered In Accordance With Requirements Of Aashto M 157, Except That The Minimum Required Revolutions At The Mixing Speed For Transit-mixed Concrete May Be Reduced To Not Less Than That Recommended By The Mixer Manufacturer. The Number Of Revolutions Recommended By The Mixer Manufacturer Shall Be Indicated On The Manufacturer’s Serial Plate Attached To The Mixer. The Contractor Shall Furnish Test Data Acceptable To The Lgu Project Engineer Verifying That The Make And Model Of The Mixer Will Produce Uniform Concrete Conforming To The Provision Of Aashto M 157 At The Reduced Number Of Revolutions Shown On The Serial Plate. When Mixed At The Site Or In A Central Mixing Plant, The Mixing Time Shall Not Be Less Than Fifty (50) Seconds Nor More Than Ninety (90) Seconds, Unless Mixer Performance Tests Prove Adequate Mixing Of The Concrete Is A Shorter Time Period. Four (4) Seconds Shall Be Added To The Specified Mixing Time If Timing Starts At The Instant The Skip Reaches Its Maximum Raised Positions. Mixing Time Ends When The Discharge Chute Opens. Transfer Time In Multiple Drum Mixers Is Included In Mixing Time. The Contents Of An Individual Mixer Drum Shall Be Removed Before A Succeeding Batch Is Emptied Therein. The Mixer Shall Be Operated At The Drum Speed As Shown On The Manufacturer’s Name Plate Attached On The Mixer. Any Concrete Mixed Less Than The Specified Time Shall Be Discarded And Disposed Off By The Contractor At His Expense. The Volume Of Concrete Mixed Per Batch Shall Not Exceed The Mixer’s Nominal Capacity In Cubic Metre, As Shown On The Manufacturer’s Standard Rating Plate On The Mixer, Except That An Overload Up To Ten (10) Percent Above The Mixer’s Nominal Capacity May Be Permitted Provided Concrete Test Data For Strength, Segregation, And Uniform Consistency Are Satisfactory, And Provided No Spillage Of Concrete Takes Place. The Batches Shall Be So Charged Into The Drum That A Portion Of The Mixing Water Shall Be Entered In Advance Of The Cement And Aggregates. The Flow Of Water Shall Be Uniform And All Water Shall Be In The Drum By The End Of The First Fifteen (15) Seconds Of The Mixing Period. The Throat Of The Drum Shall Be Kept Free Of Such Accumulations As May Restrict The Free Flow Of Materials Into The Drum. Mixed Concrete From The Central Mixing Plant Shall Be Transported In Truck Mixers, Truck Agitators Or Non-agitating Truck Specified In Subsection 311.3.2, Equipment. The Time Elapsed From The Time Water Is Added To The Mix Until The Concrete Is Deposited In Place At The Site Shall Not Exceed Forty Five (45) Minutes When The Concrete Is Hauled In Non-agitating Trucks, Nor Ninety (90) Minutes When Hauled In Truck Mixers Or Truck Agitators, Except That In Hot Weather Or Under Other Conditions Contributing To Quick Hardening Of The Concrete, The Maximum Allowable Time May Be Reduced By The Lgu Project Engineer. In Exceptional Cases And When Volumetric Measurements Are Authorized For Small Project Requiring Less Than 75 Cu.m. Of Concrete Per Day Of Pouring, The Weight Proportions Shall Be Converted To Equivalent Volumetric Proportions. In Such Cases, Suitable Allowance Shall Be Made For Variations In The Moisture Condition Of The Aggregates, Including The Bulking Effect In The Fine Aggregate. Batching And Mixing Shall Be In Accordance With Astm C 685, Section 6 Through 9. Concrete Mixing By Chute Is Allowed Provided That A Weighing Scale For Determining The Batch Weight Will Be Used. Retendering Concrete By Adding Water Or By Other Means Shall Not Be Permitted, Except That When Concrete Is Delivered In Truck Mixers, Additional Water May Be Added To The Batch Materials And Additional Mixing Performed To Increase The Slump To Meet The Specified Requirements, If Permitted By The Lgu Project Engineer, Provided All These Operations Are Performed Within Forty-five (45) Minutes After The Initial Mixing Operation And The Water-cement Ratio Is Not Exceeded. Concrete That Is Not Within The Specified Slump Limits At The Time Of Placement Shall Not Be Used. Admixtures For Increasing The Workability Or For Accelerating The Setting Of The Concrete Will Be Permitted Only When Specifically Approved By The Lgu Project Engineer. 311.3.8 Limitation Of Mixing No Concrete Shall Be Mixed, Placed Or Finished When Natural Light Is Insufficient, Unless An Adequate And Approved Artificial Lighting System Is Operated. During Hot Weather, The Lgu Project Engineer Shall Require That Steps Be Taken To Prevent The Temperature Of Mixed Concrete From Exceeding A Maximum Temperature Of (900f 320c). Concrete Not In Place Within Ninety (90) Minutes From The Time The Ingredients Were Charged Into The Mixing Drum Or That Has Developed Initial Set Shall Not Be Used. Retendering Of Concrete Or Mortar Which Has Partially Hardened, That Is Remixing With Or Without Additional Cement, Aggregate, Or Water, Shall Not Be Permitted. In Order That The Concrete May Be Properly Protected Against The Effects Of Rain Before The Concrete Is Sufficiently Hardened, The Contractor Will Be Required To Have Available At All Times Materials For The Protection Of The Edges And Surface Of The Unhardened Concrete. 311.3.9 Placing Concrete Concrete Shall Be Deposited In Such A Manner To Require Minimal Rehandling. Unless Truck Mixers Or Non-agitating Hauling Equipment Are Equipped With Means To Discharge Concrete Without Segregation Of The Materials, The Concrete Shall Be Unloaded Into An Approved Spreading Device And Mechanically Spread On The Grade In Such A Manner As To Prevent Segregation. Placing Shall Be Continuous Between Transverse Joints Without The Use Of Intermediate Bulkheads. Necessary Hand Spreading Shall Be Done With Shovels, Not Rakes. Workmen Shall Not Be Allowed To Walk In The Freshly Mixed Concrete With Boots Or Shoes Coated With Earth Or Foreign Substances. When Concrete Is To Be Placed Adjoining A Previously Constructed Lane And Mechanical Equipment Will Be Operated Upon The Existing Lane, That Previously Constructed Lane Shall Have Attained The Strength For Fourteen (14) Day Concrete. If Only Finishing Equipment Is Carried On The Existing Lane, Paving In Adjoining Lanes May Be Permitted After Three (3) Days. Concrete Shall Be Thoroughly Consolidated Against And Along The Faces Of All Forms And Along The Full Length And On Both Sides Of All Joint Assemblies, By Means Of Vibrators Inserted In The Concrete. Vibrators Shall Not Be Permitted To Come In Contact With A Joint Assembly, The Grade, Or A Side Form. In No Case Shall The Vibrator Be Operated Longer Than Fifteen (15) Seconds In Any One Location. Concrete Shall Be Deposited As Near As Possible To The Expansion And Contraction Joints Without Disturbing Them, But Shall Not Be Dumped From The Discharge Bucket Or Hopper Into A Joint Assembly Unless The Hopper Is Well Centered On The Joint Assembly. Should Any Concrete Material Fall On Or Be Worked Into The Surface Of A Complete Slab, It Shall Be Removed Immediately. 311.3.10 Test Specimens As Work Progresses, At Least One (1) Set Consisting Of Three (3) Concrete Beam Test Specimens, 150 Mm X 150 Mm X 525 Mm Or 900 Mm Shall Be Taken From Each 330 M2 Of Pavement, 230 Mm Depth, Or Fraction Thereof Placed Each Day. Test Specimens Shall Be Made Under The Supervision Of The Lgu Project Engineer, And The Contractor Shall Provide All Concrete And Other Facilities Necessary In Making The Test Specimens And Shall Protect Them From Damage By Construction Operations. Cylinder Samples Shall Not Be Used As Substitute For Determining The Adequacy Of The Strength Of Concrete. The Beams Shall Be Made, Cured, And Tested In Accordance With Aashto T 23 And T 97. 311.3.11 Strike-off Of Concrete And Placement Of Reinforcement Following The Placing Of The Concrete, It Shall Be Struck Off To Conform To The Cross-section Shown On The Plans And To An Elevation Such That When The Concrete Is Properly Consolidated And Finished, The Surface Of The Pavement Will Be At The Elevation Shown On The Plans. When Reinforced Concrete Pavement Is Placed In Two (2) Layers, The Bottom Layer Shall Be Struck Off And Consolidated To Such Length And Depth That The Sheet Of Fabric Or Bar Mat May Be Laid Full Length On The Concrete In Its Final Position Without Further Manipulation. The Reinforcement Shall Then Be Placed Directly Upon The Concrete, After Which The Top Layer Of The Concrete Shall Be Placed, Struck Off And Screened. Any Portion Of The Bottom Layer Of Concrete Which Has Been Placed More Than 30 Minutes Without Being Covered With The Top Layer Shall Be Removed And Replaced With Freshly Mixed Concrete At The Contractor’s Expense. When Reinforced Concrete Is Placed In One Layer, The Reinforcement May Be Firmly Positioned In Advance Of Concrete Placement Or It May Be Placed At The Depth Shown On The Plans In Plastic Concrete, After Spreading By Mechanical Or Vibratory Means. Reinforcing Steel Shall Be Free From Dirt, Oil, Paint, Grease, Mill Scale And Loose Or Thick Rust Which Could Impair Bond Of The Steel With The Concrete. 311.3.12 Joints Joints Shall Be Constructed Of The Type And Dimensions, And At The Locations Required By The Plans Or Special Provisions. All Joints Shall Be Protected From The Intrusion Of Injurious Foreign Material Until Sealed. 1. Longitudinal Joint Deformed Steel Tie Bars Of Specified Length, Size, Spacing And Materials Shall Be Placed Perpendicular To The Longitudinal Joints, They Shall Be Placed By Approved Mechanical Equipment Or Rigidly Secured By Chair Or Other Approved Supports To Prevent Displacement. Tie Bars Shall Not Be Painted Or Coated With Asphalt Or Other Materials Or Enclosed In Tubes Or Sleeves. When Shown On The Plans And When Adjacent Lanes Of Pavement Are Constructed Separately, Steel Side Forms Shall Be Used Which Will Form A Keyway Along The Construction Joint. Tie Bars, Except Those Made Of Rail Steel, May Be Bent At Right Angles Against The Form Of The First Lane Constructed And Straightened Into Final Position Before The Concrete Of The Adjacent Lane Is Placed, Or In Lieu Of Bent Tie Bars, Approved Two-piece Connectors May Be Used. Longitudinal Formed Joints Shall Consist Of A Groove Or Cleft, Extending Downward From And Normal To, The Surface Of The Pavement. These Joints Shall Be Effected Or Formed By An Approved Mechanically Or Manually Operated Device To The Dimensions And Line Indicated On The Plans And While The Concrete Is In A Plastic State. The Groove Or Cleft Shall Be Filled With Either A Premolded Strip Or Poured Material As Required. The Longitudinal Joints Shall Be Continuous, There Shall Be No Gaps In Either Transverse Or Longitudinal Joints At The Intersection Of The Joints. Longitudinal Sawed Joints Shall Be Cut By Means Of Approved Concrete Saws To The Depth, Width And Line Shown On The Plans. Suitable Guide Lines Or Devices Shall Be Used To Assure Cutting The Longitudinal Joint On The True Line. The Longitudinal Joint Shall Be Sawed Before The End Of The Curing Period Or Shortly Thereafter And Before Any Equipment Or Vehicles Are Allowed On The Pavement. The Sawed Area Shall Be Thoroughly Cleaned And, If Required, The Joint Shall Immediately Be Filled With Sealer. Longitudinal Pavement Insert Type Joints Shall Be Formed By Placing A Continuous Strip Of Plastic Materials Which Will Not React Adversely With The Chemical Constituent Of The Concrete. 2. Transverse Expansion Joint The Expansion Joint Filler Shall Be Continuous From Form To Form, Shaped To Sub-grade And To The Keyway Along The Form. Preformed Joint Filler Shall Be Furnished In Lengths Equal To The Pavement Width Or Equal To The Width Of One Lane. Damaged Or Repaired Joint Filler Shall Not Be Used. The Expansion Joint Filler Shall Be Held In A Vertical Position. An Approved Installing Bar, Or Other Device, Shall Be Used If Required To Secure Preformed Expansion Joint Filler At The Proper Grade And Alignment During Placing And Finishing Of The Concrete. Finished Joint Shall Not Deviate More Than 6 Mm From A Straight Line. If Joint Fillers Are Assembled In Sections, There Shall Be No Offsets Between Adjacent Units. No Plugs Of Concrete Shall Be Permitted Anywhere Within The Expansion Space. 3. Transverse Contraction Joint/weakened Joint When Shown On The Plans, It Shall Consist Of Planes Of Weakness Created By Forming Or Cutting Grooves In The Surface Of The Pavement And Shall Include Load Transfer Assemblies. The Depth Of The Weakened Plane Joint Should At All Times Not Be Less Than 50 Mm, While The Width Should Not Be More Than 6 Mm. A. Transverse Strip Contraction Joint. It Shall Be Formed By Installing A Parting Strip To Be Left In Place As Shown On The Plans. B. Formed Groove. It Shall Be Made By Depressing An Approved Tool Or Device Into The Plastic Concrete. The Tool Or Device Shall Remain In Place At Least Until The Concrete Has Attained Its Initial Set And Shall Then Be Removed Without Disturbing The Adjacent Concrete, Unless The Device Is Designed To Remain In The Joint. C. Sawed Contraction Joint. It Shall Be Created By Sawing Grooves In The Surface Of The Pavement Of The Width Not More Than 6 Mm, Depth Should At All Times Not Be Less Than 50 Mm, And At The Spacing And Lines Shown On The Plans, With An Approved Concrete Saw. After Each Joint Is Sawed, It Shall Be Thoroughly Cleaned Including The Adjacent Concrete Surface. Sawing Of The Joint Shall Commence As Soon As The Concrete Has Hardened Sufficiently To Permit Sawing Without Excessive Raveling, Usually 4 To 24 Hours. All Joints Shall Be Sawed Before Uncontrolled Shrinkage Cracking Takes Place. If Necessary, The Sawing Operations Shall Be Carried On During The Day Or Night, Regardless Of Weather Conditions. The Sawing Of Any Joint Shall Be Omitted If Crack Occurs At Or Near The Joint Location Prior To The Time Of Sawing. Sawing Shall Be Discounted When A Crack Develops Ahead Of The Saw. In General, All Joints Should Be Sawed In Sequence. If Extreme Condition Exist Which Make It Impractical To Prevent Erratic Cracking By Early Sawing, The Contraction Joint Groove Shall Be Formed Prior To Initial Set Of Concrete As Provided Above. 4. Transverse Construction Joint It Shall Be Constructed When There Is An Interruption Of More Than 30 Minutes In The Concreting Operations. No Transverse Joint Shall Be Constructed Within 1.50 M Of An Expansion Joint, Contraction Joint, Or Plane Of Weakness. If Sufficient Concrete Has Been Mixed At The Time Of Interruption To Form A Slab Of At Least 1.5 M Long, The Excess Concrete From The Last Preceding Joint Shall Be Removed And Disposed Off As Directed. 5. Load Transfer Device Dowel, When Used, Shall Be Held In Position Parallel To The Surface And Center Line Of The Slab By A Metal Device That Is Left In The Pavement. The Portion Of Each Dowel Painted With One Coat Of Lead Or Tar, In Conformance With The Requirements Of Item 404, Reinforcing Steel, Shall Be Thoroughly Coated With Approved Bituminous Materials, E.g., Mc-70, Or An Approved Lubricant, To Prevent The Concrete From Binding To That Portion Of The Dowel. The Sleeves For Dowels Shall Be Metal Designed To Cover 50 Mm Plus Or Minus 5 Mm (1/4 Inch), Of The Dowel, With A Watertight Closed End And With A Suitable Stop To Hold The End Of The Sleeves At Least 25 Mm (1 Inch) From The End Of The Dowel. In Lieu Of Using Dowel Assemblies At Contraction Joints, Dowel May Be Placed In The Full Thickness Of Pavement By A Mechanical Device Approved By The Lgu Project Engineer. 311.3.13 Final Strike-off (consolidation And Finishing) 1. Sequence The Sequence Of Operations Shall Be The Strike-off And Consolidation, Floating And Removal Of Laitance, Straight-edging And Final Surface Finish. Work Bridges Or Other Devices Necessary To Provide Access To The Pavement Surface For The Purpose Of Finishing Straight-edging, And Make Corrections As Hereinafter Specified, Shall Be Provided By The Contractor. In General, The Addition Of Water To The Surface Of The Concrete To Assist In Finishing Operations Will Not Be Permitted. If The Application Of Water To The Surface Is Permitted, It Shall Be Applied As Fog Spray By Means Of An Approve Spray Equipment. 2. Finishing Joints The Concrete Adjacent To Joints Shall Be Compacted Or Firmly Placed Without Voids Or Segregation Against The Joint Material Assembly, Also Under And Around All Load Transfer Devices, Joint Assembly Units, And Other Features Designed To Extend Into The Pavement. Concrete Adjacent To Joints Shall Be Mechanically Vibrated As Required In Subsection 311.3.9, Placing Concrete. After The Concrete Has Been Placed And Vibrated Adjacent To The Joints As Required In Subsection 311.3.9, The Finishing Machine Shall Be Brought Forward, Operating In A Manner To Avoid Damage Or Misalignment Of Joints. If Uninterrupted Operation Of The Finishing Machine, To Over And Beyond The Joints Causes Segregation Of Concrete, Damage To, Or Misalignment Of The Joints, The Finishing Machine Shall Be Stopped When The Front Screed Is Approximately 20 Cm (8 Inches) From The Joint. Segregated Concrete Shall Be Removed From In Front Of And Off The Joint. The Front Screed Shall Be Lifted And Set Directly On Top Of The Joint And The Forward Motion Of The Finishing Machine Resumed. When The Second Screed Is Close Enough To Permit The Excess Mortar In Front Of It To Flow Over The Joint, It Shall Be Lifted And Carried Over The Joint. Thereafter, The Finishing Machine May Be Run Over The Joint Without Lifting The Screeds, Provided There Is No Segregated Concrete Immediately Between The Joint And The Screed Or On Top Of The Joint. 3. Machine Finishing A. Non-vibratory Method. The Concrete Shall Be Distributed Or Spread As Soon As Placed. As Soon As The Concrete Has Been Placed, It Shall Be Struck Off And Screwed By An Approved Finishing Machine. The Machine Shall Go Over Each Area Of Pavement As Many Times And At Such Intervals As Necessary To Give The Proper Compaction And Leave A Surface Of Uniform Texture. Excessive Operation Over A Given Area Shall Be Avoided. The Tops Of The Forms Shall Be Kept Clean By An Effective Device Attached To The Machine And The Travel Of The Machine On The Forms Shall Be Maintained True Without Wobbling Or Other Variation Tending To Affect The Precision Finish. During The First Pass Of The Finishing Machine, A Uniform Ridge Of Concrete Shall Be Maintained Ahead Of The Front Screed In Its Entire Length. B. Vibratory Method. When Vibration Is Specified, Vibrators For Full Width Vibration Of Concrete Paving Slabs, Shall Meet The Requirements In Subsection 311.3.2, Equipment. If Uniform And Satisfactory Density Of The Concrete Is Not Obtained By The Vibratory Method At Joints, Along Forms, At Structures, And Throughout The Pavement, The Contractor Will Be Required To Furnish Equipment And Method Which Will Produce Pavement Conforming To The Specifications. All Provisions In Item (a) Above Not In Conflict With The Provisions For The Vibratory Method Shall Govern. 4. Hand Finishing Hand Finishing Methods May Only Be Used Under The Following Conditions: A. In The Event Of Breakdown Of The Mechanical Equipment, Hand Methods May Be Used To Finish The Concrete Already Deposited On The Grade. B. In Narrow Widths Or Areas Of Irregular Dimensions Where Operations Of The Mechanical Equipment Is Impractical, Hand Methods May Be Used. Concrete, As Soon As Placed, Shall Be Struck Off And Screeded. An Approved Portable Screed Shall Be Used. A Second Screed Shall Be Provided For Striking Off The Bottom Layer Of Concrete If Reinforcement Is Used. The Screed For The Surface Shall Be At Least 60 Cm (2 Feet) Longer Than The Maximum Width Of The Slab To Be Struck Off. It Shall Be Of Approved Design, Sufficiently Rigid To Retain Its Shape, And Constructed Either Of Metal Or Other Suitable Material Shod With Metal. Consolidation Shall Be Attained By The Use Of Suitable Vibrator Or Other Approved Equipment. In Operation, The Screed Shall Be Moved Forward On The Forms With A Combined Longitudinal And Transverse Shearing Motion, Moving Always In The Direction In Which The Work Is Progressing And So Manipulated That Neither End Is Raised From The Side Forms During The Striking Off Process. If Necessary, This Shall Be Repeated Until The Surface Is Of Uniform Texture, True To Grade And Cross-section, And Free From Porous Areas. 5. Floating After The Concrete Has Been Struck Off And Consolidated, It Shall Be Further Smoothed, Trued, And Consolidated By Means Of A Longitudinal Float, Either By Hand Or Mechanical Method. A. Hand Method. The Hand-operated Longitudinal Float Shall Be Not Less Than 365 Cm (12 Feet) In Length And 15 Cm (6 Inches) In Width, Properly Stiffened To Prevent Flexibility And Warping. The Longitudinal Float, Operated From Foot Bridges Resting On The Side Forms And Spanning But Not Touching The Concrete, Shall Be Worked With A Sawing Motion While Held In A Floating Position Parallel To The Road Center Line, And Moving Gradually From One Side Of The Pavement To The Other. Movement Ahead Along The Center Line Of The Pavement Shall Be In Successive Advances Of Not More Than One-half The Length Of The Float. Any Excess Water Or Soupy Material Shall Be Wasted Over The Side Forms On Each Pass. B. Mechanical Method. The Mechanical Longitudinal Float Shall Be Of A Design Approved By The Lgu Project Engineer, And Shall Be In Good Working Condition. The Tracks From Which The Float Operates Shall Be Accurately Adjusted To The Required Crown. The Float Shall Be Accurately Adjusted And Coordinated With The Adjustment Of The Transverse Finishing Machine So That A Small Amount Of Mortar Is Carried Ahead Of The Float At All Times. The Forward Screed Shall Be Adjusted So That The Float Will Lap The Distance Specified By The Lgu Project Engineer On Each Transverse Trip. The Float Shall Pass Over Each Areas Of Pavement At Least Two Times, But Excessive Operation Over A Given Area Will Not Be Permitted. Any Excess Water Or Soupy Material Shall Be Wasted Over The Side Forms On Each Pass. C. Alternative Mechanical Method. As An Alternative, The Contractor May Use A Machine Composed Of A Cutting And Smoothing Float Or Floats Suspended From And Guided By A Rigid Frame. The Frame Shall Be Carried By Four Or More Visible Wheels Riding On, And Constantly In Contact With The Side Forms. If Necessary, Following One Of The Preceding Method Of Floating, Long Handled Floats Having Blades Not Less Than 150 Cm (5 Feet) In Length And 15 Cm (6 Inches) In Width May Be Used To Smooth And Fill In Open-textured Areas In The Pavement. Long-handled Floats Shall Not Be Used To Float The Entire Surface Of The Pavement In Lieu Of, Or Supplementing, One Of The Preceding Methods Of Floating. When Strike Off And Consolidation Are Done By The Hand Method And The Crown Of The Pavement Will Not Permit The Use Of The Longitudinal Float, The Surface Shall Be Floated Transversely By Means Of The Long-handled Float. Care Shall Be Taken Not To Work The Crown Out Of The Pavement During The Operation. After Floating, Any Excess Water And Laitance Shall Be Removed From The Surface Of The Pavement By A 3-m Straight-edge Or More In Length. Successive Drags Shall Be Lapped One-half The Length Of The Blade. 6. Straight-edge Testing And Surface Correction After The Floating Has Been Completed And The Excess Water Removed, But While The Concrete Is Still Plastic, The Surface Of The Concrete Shall Be Tested For Trueness With A 300 Cm Long Straight-edge. For This Purpose, The Contractor Shall Furnish And Use An Accurate 300-cm Straight-edge Swung From Handles 100 Cm (3 Feet) Longer Than One-half The Width Of The Slab. The Straight-edge Shall Be Held In Contact With The Surface In Successive Positions Parallel To The Road Center Line And The Whole Area Gone Over From One Side Of The Slab To The Other As Necessary. Advances Along The Road Shall Be In Successive Stages Of Not More Than One-half The Length Of The Straight-edge. Any Depressions Found Shall Be Immediately Filled With Freshly Mixed Concrete, Struck Off, Consolidated And Refinished. High Areas Shall Be Cut Down And Refinished. Special Attention Shall Be Given To Assure That The Surface Across Joints Meets The Requirements For Smoothness. Straight-edge Testing And Surface Corrections Shall Continue Until The Entire Surface Is Found To Be Free From Observable Departures From The Straight-edge And The Slab Conforms To The Required Grade And Cross-section. 7. Final Finish If The Surface Texture Is Broom Finished, It Shall Applied When The Water Sheen Has Practically Disappeared. The Broom Shall Be Drawn From The Center To The Edge Of The Pavement With Adjacent Strokes Slightly Overlapping. The Brooming Operation Should Be So Executed That The Corrugations Produced In The Surface Shall Be Uniform In Appearance And Not More Than 1.5 Mm In Depth. Brooming Shall Be Completed Before The Concrete Is In Such Condition That The Surface Will Be Unduly Roughened By The Operation. The Surface Thus Finished Shall Be Free From Rough And Porous Areas, Irregularities, And Depressions Resulting From Improper Handling Of The Broom. Brooms Shall Be Of The Quality Size And Construction And Be Operated So As To Produce A Surface Finish Meeting The Approval Of The Lgu Project Engineer. Subject To Satisfactory Results Being Obtained And Approval Of The Lgu Project Engineer, The Contractor Will Be Permitted To Substitute Mechanical Brooming In Lieu Of The Manual Brooming Herein Described. If The Surface Texture Is Belt Finished, When Straight-edging Is Complete And Water Sheen Has Practically Disappeared And Just Before The Concrete Becomes Non-plastic, The Surface Shall Be Belted With 2-ply Canvass Belt Not Less Than 20 Cm Wide And At Least 100 Cm Longer Than The Pavement Width. Hand Belts Shall Have Suitable Handles To Permit Controlled, Uniform Manipulation. The Belt Shall Be Operated With Short Strokes Transverse To The Center Line And With A Rapid Advances Parallel To The Center Line. If The Surface Texture Is Drag Finished, A Drag Shall Be Used Which Consists Of A Seamless Strip Of Damp Burlap Or Cotton Fabric, Which Shall Produce A Uniform Of Gritty Texture After Dragging It Longitudinally Along The Full Width Of Pavement. For Pavement 5 M Or More In Width, The Drag Shall Be Mounted On A Bridge Which Travels On The Forms. The Dimensions Of The Drag Shall Be Such That A Strip Of Burlap Or Fabric At Least 100 Cm Wide Is In Contact With The Full Width Of Pavement Surface While The Drag Is Used. The Drag Shall Consist Of Not Less Than 2 Layers Of Burlap With The Bottom Layer Approximately 15 Cm Wider Than The Layer. The Drag Shall Be Maintained In Such Condition That The Resultant Surface Is Of Uniform Appearance And Reasonably Free From Grooves Over 1.5 Mm In Depth. Drag Shall Be Maintained Clean And Free From Encrusted Mortar. Drags That Cannot Be Cleaned Shall Be Discarded And New Drags Be Substituted. Regardless Of The Method Used For Final Finish, The Hardened Surface Of Pavement Shall Have A Coefficient Of Friction Of 0.25 Or More. Completed Pavement That Is Found To Have A Coefficient Of Friction Less Than 0.25 Shall Be Grounded Or Scored By The Contractor At His Expense To Provide The Required Coefficient Of Friction. 8. Edging At Forms And Joints After The Final Finish, But Before The Concrete Has Taken Its Initial Set, The Edges Of The Pavement Along Each Side Of Each Slab, And On Each Side Of Transverse Expansion Joints, Formed Joints, Transverse Construction Joints, And Emergency Construction Joints, Shall Be Worked With An Approved Tool And Rounded To The Radius Required By The Plans. A Well – Defined And Continuous Radius Shall Be Produced And A Smooth, Dense Mortar Finish Obtained. The Surface Of The Slab Shall Not Be Unduly Disturbed By Tilting The Tool During The Use. At All Joints, Any Tool Marks Appearing On The Slab Adjacent To The Joints Shall Be Eliminated By Brooming The Surface. In Doing This, The Rounding Of The Corner Of The Slab Shall Not Be Disturbed. All Concrete On Top Of The Joint Filler Shall Be Completely Removed. All Joints Shall Be Tested With A Straight-edge Before The Concrete Has Set And Correction Made If One Edge Of The Joint Is Higher Than The Other. 311.3.14 Surface Test As Soon As The Concrete Has Hardened Sufficiently, The Pavement Surface Shall Be Tested With A 3-m Straight-edge Or Other Specified Device. Areas Showing High Spots Of More Than 3 Mm But Not Exceeding 12 Mm In 3 M Shall Be Marked And Immediately Ground Down With An Approved Grinding Tool To An Elevation Where The Area Or Spot Will Not Show Surface Deviations In Excess Of 3 Mm When Tested With 3 M Straight-edge. Where The Departure From Correct Cross-section Exceeds 12 Mm, The Pavement Shall Be Removed And Replaced By And At The Expense Of The Contractor. Any Area Or Section So Removed Shall Be Not Less Than 1.5 M In Length And Not Less Than The Full Width Of The Lane Involved. When It Is Necessary To Remove And Replace A Section Of Pavement, Any Remaining Portion Of The Slab Adjacent To The Joints That Is Less Than 1.5 M In Length, Shall Also Be Removed And Replaced. 311.3.15 Curing Immediately After The Finishing Operations Have Been Completed And The Concrete Has Sufficiently Set, The Entire Surface Of The Newly Placed Concrete Shall Be Cured In Accordance With Either One Of The Methods Described Herein. Failure To Provide Sufficient Cover Material Of Whatever Kind The Contractor May Elect To Use, Or The Lack Of Water To Adequately Take Care Of Both Curing And Other Requirements, Shall Be A Cause For Immediate Suspension Of Concreting Operations. The Concrete Shall Not Be Left Exposed For More Than ½ Hour Between Stages Of Curing Or During The Curing Period. In All Congested Places, Concrete Works Should Be Designed So That The Designed Strength Is Attained. 1. Cotton Of Burlap Mats The Surface Of The Pavement Shall Be Entirely Covered With Mats. The Mats Used Shall Be Of Such Length (or Width) That As Laid They Will Extend At Least Twice The Thickness Of The Pavement Beyond The Edges Of The Slab. The Mat Shall Be Placed So That The Entire Surface And The Edges Of The Slab Are Completely Covered. Prior To Being Placed, The Mats Shall Be Saturated Thoroughly With Water. The Mat Shall Be So Placed And Weighted Down So As To Cause Them To Remain In Intimate Contact With The Covered Surface. The Mat Shall Be Maintained Fully Wetted And In Position For 72 Hours After The Concrete Has Been Placed Unless Otherwise Specified. 2. Waterproof Paper The Top Surface And Sides Of The Pavement Shall Be Entirely Covered With Waterproof Paper, The Units Shall Be Lapped At Least 45 Cm. The Paper Shall Be So Placed And Weighted Down So As To Cause It To Remain In Intimate Contact With The Surface Covered. The Paper Shall Have Such Dimension But Each Unit As Laid Will Extend Beyond The Edges Of The Slab At Least Twice The Thickness Of The Pavement, Or At Pavement Width And 60 Cm Strips Of Paper For The Edges. If Laid Longitudinally, Paper Not Manufactured In Sizes Which Will Provide This Width Shall Be Securely Sewed Or Cemented Together, The Joints Being Securely Sealed In Such A Manner That They Do Not Open Up Or Separate During The Curing Period. Unless Otherwise Specified, The Covering Shall Be Maintained In Place For 72 Hours After The Concrete Has Been Placed. The Surface Of The Pavement Shall Be Thoroughly Wetted Prior To The Placing Of The Paper. 3. Straw Curing When This Type Of Curing Is Used, The Pavement Shall Be Cured Initially With Burlap Or Cotton Mats, Until After Final Set Of The Concrete Or, In Any Case, For 12 Hours After Placing The Concrete. As Soon As The Mats Are Removed, The Surface And Sides Of The Pavement Shall Be Thoroughly Wetted And Covered With At Least 20 Cm Of Straw Or Hay, Thickness Of Which Is To Be Measured After Wetting. If The Straw Or Hay Covering Becomes Displaced During The Curing Period, It Shall Be Replaced To The Original Depth And Saturated. It Shall Be Kept Thoroughly Saturated With Water For 72 Hours And Thoroughly Wetted Down During The Morning Of The Fourth Day, And The Cover Shall Remain In Place Until The Concrete Has Attained The Required Strength. 4. Impervious Membrane Method The Entire Surface Of The Pavement Shall Be Sprayed Uniformly With White Pigmented Curing Compound Immediately After The Finishing Of The Surface And Before The Set Of The Concrete Has Taken Place, Or If The Pavement Is Cured Initially With Jute Or Cotton Mats, It May Be Applied Upon Removal Of The Mass. The Curing Compound Shall Not Be Applied During Rain. Curing Compound Shall Be Applied Under Pressure At The Rate 4 L To Not More Than 14 M2 By Mechanical Sprayers. The Spraying Equipment Shall Be Equipped With A Wind Guard. At The Time Of Use, The Compound Shall Be In A Thoroughly Mixed Condition With The Pigment Uniformly Dispersed Throughout The Vehicle. During Application, The Compound Shall Be Stirred Continuously By Effective Mechanical Means. Hand Spraying Of Odd Widths Or Shapes And Concrete Surface Exposed By The Removal Of Forms Will Be Permitted. Curing Compound Shall Not Be Applied To The Inside Faces Of Joints To Be Sealed, But Approved Means Shall Be Used To Insure Proper Curing At Least 72 Hours And To Prevent The Intrusion Of Foreign Material Into The Joint Before Sealing Has Been Completed. The Curing Compound Shall Be Of Such Character That The Film Will Harden Within 30 Minutes After Application. Should The Film Be Damaged From Any Cause Within The 72 Hour Curing Period, The Damaged Portions Shall Be Repaired Immediately With Additional Compound. 5. White Polyethylene Sheet The Top Surface And Sides Of The Pavement Shall Be Entirely Covered With Polyethylene Sheeting. The Units Used Shall Be Lapped At Least 45 Cm. The Sheeting Shall Be So Placed And Weighted Down So As To Cause It To Remain Intimate Contact With The Surface Covered. The Sheeting As Prepared For Use Shall Have Such Dimension That Each Unit As Laid Will Extend Beyond The Edges Of The Slab At Least Twice The Thickness Of The Pavement. Unless Otherwise Specified, The Covering Shall Be Maintained In Place For 72 Hours After The Concrete Has Been Placed. 311.3.16 Removal Of Forms After Forms For Concrete Shall Remain In Place Undisturbed For Not Less Than Twenty Four (24) Hours After Concrete Pouring. In The Removal Of Forms, Crowbars Should Be Used In Pulling Out Nails And Pins. Care Should Be Taken So As Not To Break The Edges Of The Pavement. In Case Portions Of The Concrete Are Spalled, They Shall Be Immediately Repaired With Fresh Mortar Mixed In The Proportion Of One Part Of Portland Cement And Two Parts Fine Aggregates. Major Honeycomb Areas Will Be Considered As Defective Work And Shall Be Removed And Replaced At The Expense Of The Contractor. Any Area Or Section So Removed Shall Not Be Less Than The Distance Between Weakened Plane Joint Nor Less Than The Full Width Of The Lane Involved. 311.3.17 Sealing Joints Joints Shall Be Sealed With Asphalt Sealant Soon After Completion Of The Curing Period And Before The Pavement Is Opened To Traffic, Including The Contractor’s Equipment. Just Prior To Sealing, Each Joint Shall Be Thoroughly Cleaned Of All Foreign Materials Including Membrane Curing Compound And The Joint Faces Shall Be Clean And Surface Dry When The Seal Is Applied. The Sealing Material Shall Be Applied To Each Joint Opening To Conform To The Details Shown On The Plans Or As Directed By The Lgu Project Engineer. Material For Seal Applied Hot Shall Be Stirred During Heating So That Localized Overheating Does Not Occur. The Pouring Shall Be Done In Such A Manner That The Material Will Not Be Spilled On The Exposed Surfaces Of The Concrete. The Use Of Sand Or Similar Material As A Cover For The Seal Will Not Be Permitted. Preformed Elastomeric Gaskets For Sealing Joints Shall Be Of The Cross-sectional Dimensions Shown On The Plans. Seals Shall Be Installed By Suitable Tools, Without Elongation And Secured In Placed With An Approved Lubricant Adhesive Which Shall Cover Both Sides Of The Concrete Joints. The Seals Shall Be Installed In A Compressive Condition And Shall At Time Of Placement Be Below The Level Of The Pavement Surface By Approximately 6 Mm. The Seals Shall Be In One Piece For The Full Width Of Each Transverse Joint. 311.3.18 Protection Of Pavement The Contractor Shall Protect The Pavement And Its Appurtenances Against Both Public Traffic And Traffic Caused By His Own Employees And Agents. This Shall Include Watchmen To Direct Traffic And The Erection Of And Maintenance Of Warning Signs, Lights, Pavement Bridges Or Cross-overs, Etc. The Plans Or Special Provisions Will Indicate The Location And Type Of Device Or Facility Required To Protect The Work And Provide Adequately For Traffic. All Boreholes After Thickness And/or Strength Determinations Of Newly Constructed Asphalt And Concrete Pavements Shall Be Immediately Filled/restored With The Prescribed Concrete/asphalt Mix After Completion Of The Drilling Works. Any Damage To The Pavement, Occurring Prior To Final Acceptance, Shall Be Repaired Or The Pavement Be Replaced. 311.3.19 Concrete Pavement – Slip Form Method If The Contract Calls For The Construction Of Pavement Without The Use Of Fixed Forms, The Following Provisions Shall Apply: 1. Grade After The Grade Or Base Has Been Placed And Compacted To The Required Density, The Areas Which Will Support The Paving Machine Shall Be Cut To The Proper Elevation By Means Of A Properly Designed Machine. The Grade On Which The Pavement Is To Be Constructed Shall Then Be Brought To The Proper Profile By Means Of Properly Designed Machine. If The Density Of The Base Is Disturbed By The Grading Operation, It Shall Be Corrected By Additional Compaction Before Concrete Is Placed. The Grade Should Be Constructed Sufficiently In Advance Of The Placing Of The Concrete. If Any Traffic Is Allowed To Use The Prepared Grade, The Grade Shall Be Checked And Corrected Immediately Before The Placing Of Concrete. 2. Placing Concrete The Concrete Shall Be Placed With An Approved Slip-form Paver Designed To Spread, Consolidate, Screed And Float-finish The Freshly Placed Concrete In One Complete Pass Of The Machine In Such A Manner That A Minimum Of Hand Finish Will Be Necessary To Provide A Dense And Homogenous Pavement In Conformance With The Plans And Specifications. The Machine Shall Vibrate The Concrete For The Full Width And Depth Of The Strip Of Pavement Being Placed. Such Vibration Shall Be Accompanied With Vibrating Tubes Or Arms Working In The Concrete Or With A Vibrating Screed Or Pan Operating On The Surface Of The Concrete. The Sliding Forms Shall Be Rigidly Held Together Laterally To Prevent Spreading Of The Forms. The Forms Shall Trail Behind The Paver For Such A Distance That No Appreciable Slumping Of The Concrete Will Occur, And That Necessary Final Finishing Can Be Accomplished While The Concrete Is Still Within The Forms. Any Edge Slump Of The Pavement, Exclusive Of Edge Rounding, In Excess Of 6 Mm Shall Be Corrected Before The Concrete Has Hardened. The Concrete Shall Be Held At A Uniform Consistency, Having A Slump Of Not More Than 40 Mm (1-12/ Inches). The Slip Form Paver Shall Be Operated With As Nearly As Possible A Continuous Forward Movement And That All Operations Of Mixing, Delivering And Spreading Concrete Shall Be Coordinated So As To Provide Uniform Progress With Stopping And Starting Of The Paver Held To A Minimum. If, For Any Reason, It Is Necessary To Stop The Forward Movement Of The Paver The Vibratory And Tamping Elements Shall Also Be Stopped Immediately. No Tractive Force Shall Be Applied To The Machine, Except That Which Is Controlled From The Machine. 3. Finishing The Surface Smoothness And Texture Shall Meet The Requirements Of Subsections 311.3.13 And 311.3.14. 4. Curing Unless Otherwise Specified, Curing Shall Be Done In Accordance With One Of The Methods Included In Subsection 311.3.15. The Curing Media Shall Be Applied At The Appropriate Time And Shall Be Applied Uniformly And Completely To All Surfaces And Edges Of The Pavement. 5. Joints All Joints Shall Be Constructed In Accordance With Subsection 311.3.12. 6. Protection Against Rain In Order That The Concrete May Be Properly Protected Against Rain Before The Concrete Is Sufficiently Hardened, The Contractor Will Be Required To Have Available At All Times, Materials For The Protection Of The Edges And Surface Of The Unhardened Concrete. Such Protective Materials Shall Consist Of Standard Metal Forms Or Wood Planks Having A Nominal Thickness Of Not Less Than 50 Mm (2 Inches) And A Nominal Width Of Not Less Than The Thickness Of The Pavement At Its Edge For The Protection Of The Pavement Edges, And Covering Material Such As Burlap Or Cotton Mats, Curing Paper Or Plastic Sheeting Materials For The Protection Of The Surface Of The Pavement. When Rain Appears Imminent, All Paving Operations Shall Stop And All Available Personnel Shall Begin Placing Forms Against The Sides Of The Pavement And Covering The Surface Of The Unhardened Concrete With The Protective Covering. 311.3.22 Acceptance Of Concrete The Strength Level Of The Concrete Will Be Considered Satisfactory If The Averages Of All Sets Of Three (3) Consecutive Strength Test Results Equal Or Exceed The Specified Strength, Fc’ And No Individual Strength Test Result Is Deficient By More Than 15% Of The Specified Strength, Fc’. Concrete Deemed To Be Not Acceptable Using The Above Criteria May Be Rejected Unless The Contractor Can Provide Evidence, By Means Of Core Tests, That The Quality Of Concrete Represented By Failed Test Results Is Acceptable In Place. At Least Three (3) Representative Cores Shall Be Taken From Each Member Or Area Of Concrete In Place That Is Considered Deficient. The Location Of Cores Shall Be Determined By The Engineer So That There Will Be At Least Impairment Of Strength Of The Structure. The Obtaining And Testing Of Drilled Cores Shall Be In Accordance With Aashto T 24. Concrete In The Area Represented By The Cores Will Be Considered Adequate If The Average Strength Of The Cores Is Equal To At Least 85% Of, And If No Single Core Is Less Than 75% Of, The Specified Strength, Fc’. If The Strength Of Control Specimens Does Not Meet The Requirements Of This Subsection, And It Is Not Feasible Or Not Advisable To Obtain Cores From The Structure Due To Structural Considerations, Payment Of The Concrete Will Be Made At An Adjusted Price Due To Strength Deficiency Of Concrete Specimens As Specified Hereunder: Deficiency In Strength Of Concrete Specimens, Percent (%) Percent (%) Of Contract Price Allowed Less Than 5 100 5 To Less Than 10 80 10 To Less Than 15 70 15 To Less Than 20 60 20 To Less Than 25 50 25 Or More 0 311.3.23 Opening To Traffic The Engineer Will Decide When The Pavement May Be Opened To Traffic. The Road Will Not Be Opened To Traffic Until Test Specimens Molded And Cured In Accordance With Aashto T 23 Have Attained The Minimum Strength Requirements In Subsection 311.2.11. If Such Tests Are Not Conducted Prior To The Specified Age The Pavement Shall Not Be Operated To Traffic Until 14 Days After The Concrete Was Placed. Before Opening To Traffic, The Pavement Shall Be Cleaned And Joint Sealing Completed. 311.3.24 Tolerance And Pavement Thickness 1. General The Thickness Of The Pavement Will Be Determined By Measurement Of Cores From The Completed Pavement In Accordance With Aashto T 148. The Completed Pavement Shall Be Accepted On A Lot Basis. A Lot Shall Be Considered As 1000 Linear Meters Of Pavement When A Single Traffic Lane Is Poured Or 500 Linear Meters When Two Lanes Are Poured Concurrently. The Last Unit In Each Slab Constitutes A Lot In Itself When Its Length Is At Least ½ Of The Normal Lot Length. If The Length Of The Last Unit Is Shorter Than ½ Of The Normal Lot Length, It Shall Be Included In The Previous Lot. Other Areas Such As Intersections, Entrances, Crossovers, Ramp, Etc., Will Be Grouped Together To Form A Lot. Small Irregular Areas May Be Included With Other Unit Areas To Form A Lot. Each Lot Will Be Divided Into Five (5) Equal Segments And One Core Will Be Obtained From Each Segment In Accordance With Aashto T 24. 2. Pavement Thickness It Is The Intent Of This Specification That The Pavement Has A Uniform Thickness As Called For On The Plans For The Average Of Each Lot As Defined. After The Pavement Has Met All Surface Smoothness Requirements, Cores For Thickness Measurements Will Be Taken. In Calculating The Average Thickness Of The Pavement, Individual Measurements Which Are In Excess Of The Specified Thickness By More Than 5 Mm Will Be Considered As The Specified Thickness Plus 5 Mm And Measurement Which Are Less Than The Specified Thickness By More Than 25 Mm Shall Not Be Included In The Average. When The Average Thickness For The Lot Is Deficient, The Contract Unit Price Will Be Adjusted For Thickness In Accordance With Paragraph (3 Below). Individual Areas Within A Segment Found Deficient In Thickness By More Than 25 Mm Shall Be Evaluated By The Lgu Project Engineer, And If In His Judgment, The Deficient Areas Warrant Removal, They Shall Be Removed And Replaced By The Contractor With Pavement Of The Specified Thickness At His Entire Expense. However, If The Evaluation Of The Lgu Project Engineer Is That The Deficient Area Should Not Be Removed And Replaced, Such Area Will Not Be Paid. When The Measurement Of Any Core Is Less Than The Specified Thickness By More Than 25 Mm, The Actual Thickness Of The Pavement In This Area Will Be Determined By Taking Additional Cores At No Less Than 5 M Intervals Parallel To The Center Line In Each Direction From The Affected Location Until A Core Is Found In Each Direction, Which Is Not Deficient In Thickness By More Than 25 Mm. The Area Of Slab For Which No Payment Will Be Made Shall Be The Product Of The Paving Width Multiplied By The Distance Along The Center Line Of The Road Between Transverse Sections Found Not Deficient In Thickness By More Than 25 Mm. The Thickness Of The Remainder Of The Segment To Be Used To Get The Average Thickness Of Each Lot Shall Be Determined By Taking The Average Thickness Of Additional Cores Which Are Not Deficient By More Than 25 Mm. 3. Adjustment For Thickness When The Average Thickness Of The Pavement Per Lot Is Deficient, Payment For The Lot Shall Be Adjusted As Follows: Deficiency In The Average Thickness Per Lot (mm) Percent (%) Of Contract Price Per Lot 0 – 5 100% Payment 6 – 10 95% Payment 11 – 15 85% Payment 16 – 20 70% Payment 21 – 25 50% Payment More Than 25 Remove And Replace/ No Payment No Acceptance And Final Payment Shall Be Made On Completed Pavement Unless Core Test For Thickness Determination Is Conducted 311.4 Environmental Measures In Loading Cement To The Truck And Unloading It To The Temporary Bodega, And From The Bodega To Batching Plant And During Concrete Work Operation Workers Doing This Job Shall Be Provided With Gears So As To Avoid Inhaling Cement Dust Particles That Could Affect Their Health. Workers In Construction Site Shall Be Provided With Working Gloves, Mask Boots And Clothing To Prevent Workers From Being Contaminated With Concrete Mix. The Contractor Shall See To It That The Noise Level Of The Exhaust Mufflers Of The Equipment Shall Be At The Minimum. Otherwise, The Contractor Must Replace All The Exhaust Mufflers Of The Equipment With A New One And Or Provide Muffler Silencers. All Roads Leading The Construction Site And Batching Plant Shall Be Moist During The Entire Works Operation To Prevent The Blowing Up Of Dust Particles. During Work Operation, Precautionary Signboards Shall Be Provided By The Contractor To Prevent Accidents And Damage To The Freshly Laid Concrete.

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BARANGAY ALANIB,LANTAPAN, BUKIDNON Tender

Others

Philippines

Closing Soon29 Jan 2025

Tender AmountPHP 200 K (USD 3.4 K)

Details: Description Philippine Bidding Documents (as Harmonized With Development Partners) Procurement Of Goods Government Of The Republic Of The Philippines Sixth Edition July 2020 Preface These Philippine Bidding Documents (pbds) For The Procurement Of Goods Through Competitive Bidding Have Been Prepared By The Government Of The Philippines For Use By Any Branch, Constitutional Commission Or Office, Agency, Department, Bureau, Office, Or Instrumentality Of The Government Of The Philippines, National Government Agencies, Including Government-owned And/or Controlled Corporations, Government Financing Institutions, State Universities And Colleges, And Local Government Unit. The Procedures And Practices Presented In This Document Have Been Developed Through Broad Experience, And Are For Mandatory Use In Projects That Are Financed In Whole Or In Part By The Government Of The Philippines Or Any Foreign Government/foreign Or International Financing Institution In Accordance With The Provisions Of The 2016 Revised Implementing Rules And Regulations Of Republic Act No. 9184. The Bidding Documents Shall Clearly And Adequately Define, Among Others: (i) The Objectives, Scope, And Expected Outputs And/or Results Of The Proposed Contract Or Framework Agreement, As The Case May Be; (ii) The Eligibility Requirements Of Bidders; (iii) The Expected Contract Or Framework Agreement Duration, The Estimated Quantity In The Case Of Procurement Of Goods, Delivery Schedule And/or Time Frame; And (iv) The Obligations, Duties, And/or Functions Of The Winning Bidder. Care Should Be Taken To Check The Relevance Of The Provisions Of The Pbds Against The Requirements Of The Specific Goods To Be Procured. If Duplication Of A Subject Is Inevitable In Other Sections Of The Document Prepared By The Procuring Entity, Care Must Be Exercised To Avoid Contradictions Between Clauses Dealing With The Same Matter. Moreover, Each Section Is Prepared With Notes Intended Only As Information For The Procuring Entity Or The Person Drafting The Bidding Documents. They Shall Not Be Included In The Final Documents. The Following General Directions Should Be Observed When Using The Documents: A. All The Documents Listed In The Table Of Contents Are Normally Required For The Procurement Of Goods. However, They Should Be Adapted As Necessary To The Circumstances Of The Particular Procurement Project. B. Specific Details, Such As The “name Of The Procuring Entity” And “address For Bid Submission,” Should Be Furnished In The Instructions To Bidders, Bid Data Sheet, And Special Conditions Of Contract. The Final Documents Should Contain Neither Blank Spaces Nor Options. C. This Preface And The Footnotes Or Notes In Italics Included In The Invitation To Bid, Bid Data Sheet, General Conditions Of Contract, Special Conditions Of Contract, Schedule Of Requirements, And Specifications Are Not Part Of The Text Of The Final Document, Although They Contain Instructions That The Procuring Entity Should Strictly Follow. D. The Cover Should Be Modified As Required To Identify The Bidding Documents As To The Procurement Project, Project Identification Number, And Procuring Entity, In Addition To The Date Of Issue. E. Modifications For Specific Procurement Project Details Should Be Provided In The Special Conditions Of Contract As Amendments To The Conditions Of Contract. For Easy Completion, Whenever Reference Has To Be Made To Specific Clauses In The Bid Data Sheet Or Special Conditions Of Contract, These Terms Shall Be Printed In Bold Typeface On Sections I (instructions To Bidders) And Iii (general Conditions Of Contract), Respectively. F. For Guidelines On The Use Of Bidding Forms And The Procurement Of Foreign-assisted Projects, These Will Be Covered By A Separate Issuance Of The Government Procurement Policy Board. Table Of Contents Glossary Of Acronyms, Terms, And Abbreviations ………………………….4 Section I. Invitation To Bid……………………………………………………..8 Section Ii. Instructions To Bidders…………………………………………...12 1. Scope Of Bid ………………………………………………………………………. 8 2. Funding Information………………………………………………………………. 13 3. Bidding Requirements ……………………………………………………………. 13 4. Corrupt, Fraudulent, Collusive, And Coercive Practices 13 5. Eligible Bidders…………………………………………………………………… 13 6. Origin Of Goods ………………………………………………………………….. 15 7. Subcontracts ……………………………………………………………………… 15 8. Pre-bid Conference ………………………………………………………………. 15 9. Clarification And Amendment Of Bidding Documents …………………………… 15 10. Documents Comprising The Bid: Eligibility And Technical Components …………. 15 11. Documents Comprising The Bid: Financial Component …………………………... 16 12. Bid Prices …………………………………………………………………………. 16 13. Bid And Payment Currencies ……………………………………………………… 17 14. Bid Security ………………………………………………………………………. 17 15. Sealing And Marking Of Bids ……………………………………………………… 17 16. Deadline For Submission Of Bids …………………………………………………. 18 17. Opening And Preliminary Examination Of Bids ………………………………….. 18 18. Domestic Preference ……………………………………………………………… 18 19. Detailed Evaluation And Comparison Of Bids ……………………………………. 18 20. Post-qualification ………………………………………………………………… 19 21. Signing Of The Contract …………………………………………………………… 19 Section Iii. Bid Data Sheet …………………………………………………..20 Section Iv. General Conditions Of Contract ……………………...………..22 1. Scope Of Contract ………………………………………………………………… 23 2. Advance Payment And Terms Of Payment ……………………………………….. 23 3. Performance Security ……………………………………………………………. 23 4. Inspection And Tests ……………………………………………………………… 23 5. Warranty …………………………………………………………………………. 24 6. Liability Of The Supplier ………………………………………………………….. 24 Section V. Special Conditions Of Contract ………………………………….25 Section Vi. Schedule Of Requirements ……………………………………....30 Section Vii. Technical Specifications …………………………………………31 Section Viii. Checklist Of Technical And Financial Documents …………..34 Glossary Of Acronyms, Terms, And Abbreviations Abc – Approved Budget For The Contract. Bac – Bids And Awards Committee. Bid – A Signed Offer Or Proposal To Undertake A Contract Submitted By A Bidder In Response To And In Consonance With The Requirements Of The Bidding Documents. Also Referred To As Proposal And Tender. (2016 Revised Irr, Section 5[c]) Bidder – Refers To A Contractor, Manufacturer, Supplier, Distributor And/or Consultant Who Submits A Bid In Response To The Requirements Of The Bidding Documents. (2016 Revised Irr, Section 5[d]) Bidding Documents – The Documents Issued By The Procuring Entity As The Bases For Bids, Furnishing All Information Necessary For A Prospective Bidder To Prepare A Bid For The Goods, Infrastructure Projects, And/or Consulting Services Required By The Procuring Entity. (2016 Revised Irr, Section 5[e]) Bir – Bureau Of Internal Revenue. Bsp – Bangko Sentral Ng Pilipinas. Consulting Services – Refer To Services For Infrastructure Projects And Other Types Of Projects Or Activities Of The Gop Requiring Adequate External Technical And Professional Expertise That Are Beyond The Capability And/or Capacity Of The Gop To Undertake Such As, But Not Limited To: (i) Advisory And Review Services; (ii) Pre-investment Or Feasibility Studies; (iii) Design; (iv) Construction Supervision; (v) Management And Related Services; And (vi) Other Technical Services Or Special Studies. (2016 Revised Irr, Section 5[i]) Cda - Cooperative Development Authority. Contract – Refers To The Agreement Entered Into Between The Procuring Entity And The Supplier Or Manufacturer Or Distributor Or Service Provider For Procurement Of Goods And Services; Contractor For Procurement Of Infrastructure Projects; Or Consultant Or Consulting Firm For Procurement Of Consulting Services; As The Case May Be, As Recorded In The Contract Form Signed By The Parties, Including All Attachments And Appendices Thereto And All Documents Incorporated By Reference Therein. Cif – Cost Insurance And Freight. Cip – Carriage And Insurance Paid. Cpi – Consumer Price Index. Ddp – Refers To The Quoted Price Of The Goods, Which Means “delivered Duty Paid.” Dti – Department Of Trade And Industry. Exw – Ex Works. Fca – “free Carrier” Shipping Point. Fob – “free On Board” Shipping Point. Foreign-funded Procurement Or Foreign-assisted Project– Refers To Procurement Whose Funding Source Is From A Foreign Government, Foreign Or International Financing Institution As Specified In The Treaty Or International Or Executive Agreement. (2016 Revised Irr, Section 5[b]). Framework Agreement – Refers To A Written Agreement Between A Procuring Entity And A Supplier Or Service Provider That Identifies The Terms And Conditions, Under Which Specific Purchases, Otherwise Known As “call-offs,” Are Made For The Duration Of The Agreement. It Is In The Nature Of An Option Contract Between The Procuring Entity And The Bidder(s) Granting The Procuring Entity The Option To Either Place An Order For Any Of The Goods Or Services Identified In The Framework Agreement List Or Not Buy At All, Within A Minimum Period Of One (1) Year To A Maximum Period Of Three (3) Years. (gppb Resolution No. 27-2019) Gfi – Government Financial Institution. Gocc – Government-owned And/or –controlled Corporation. Goods – Refer To All Items, Supplies, Materials And General Support Services, Except Consulting Services And Infrastructure Projects, Which May Be Needed In The Transaction Of Public Businesses Or In The Pursuit Of Any Government Undertaking, Project Or Activity, Whether In The Nature Of Equipment, Furniture, Stationery, Materials For Construction, Or Personal Property Of Any Kind, Including Non-personal Or Contractual Services Such As The Repair And Maintenance Of Equipment And Furniture, As Well As Trucking, Hauling, Janitorial, Security, And Related Or Analogous Services, As Well As Procurement Of Materials And Supplies Provided By The Procuring Entity For Such Services. The Term “related” Or “analogous Services” Shall Include, But Is Not Limited To, Lease Or Purchase Of Office Space, Media Advertisements, Health Maintenance Services, And Other Services Essential To The Operation Of The Procuring Entity. (2016 Revised Irr, Section 5[r]) Gop – Government Of The Philippines. Gppb – Government Procurement Policy Board. Incoterms – International Commercial Terms. Infrastructure Projects – Include The Construction, Improvement, Rehabilitation, Demolition, Repair, Restoration Or Maintenance Of Roads And Bridges, Railways, Airports, Seaports, Communication Facilities, Civil Works Components Of Information Technology Projects, Irrigation, Flood Control And Drainage, Water Supply, Sanitation, Sewerage And Solid Waste Management Systems, Shore Protection, Energy/power And Electrification Facilities, National Buildings, School Buildings, Hospital Buildings, And Other Related Construction Projects Of The Government. Also Referred To As Civil Works Or Works. (2016 Revised Irr, Section 5[u]) Lgus – Local Government Units. Nfcc – Net Financial Contracting Capacity. Nga – National Government Agency. Philgeps - Philippine Government Electronic Procurement System. Procurement Project – Refers To A Specific Or Identified Procurement Covering Goods, Infrastructure Project Or Consulting Services. A Procurement Project Shall Be Described, Detailed, And Scheduled In The Project Procurement Management Plan Prepared By The Agency Which Shall Be Consolidated In The Procuring Entity's Annual Procurement Plan. (gppb Circular No. 06-2019 Dated 17 July 2019) Psa – Philippine Statistics Authority. Sec – Securities And Exchange Commission. Slcc – Single Largest Completed Contract. Supplier – Refers To A Citizen, Or Any Corporate Body Or Commercial Company Duly Organized And Registered Under The Laws Where It Is Established, Habitually Established In Business And Engaged In The Manufacture Or Sale Of The Merchandise Or Performance Of The General Services Covered By His Bid. (item 3.8 Of Gppb Resolution No. 13-2019, Dated 23 May 2019). Supplier As Used In These Bidding Documents May Likewise Refer To A Distributor, Manufacturer, Contractor, Or Consultant. Un – United Nations. Section I. Invitation To Bid Notes On The Invitation To Bid The Invitation To Bid (ib) Provides Information That Enables Potential Bidders To Decide Whether To Participate In The Procurement At Hand. The Ib Shall Be Posted In Accordance With Section 21.2 Of The 2016 Revised Irr Of Ra No. 9184. Apart From The Essential Items Listed In The Bidding Documents, The Ib Should Also Indicate The Following: A. The Date Of Availability Of The Bidding Documents, Which Shall Be From The Time The Ib Is First Advertised/posted Until The Deadline For The Submission And Receipt Of Bids; B. The Place Where The Bidding Documents May Be Acquired Or The Website Where It May Be Downloaded; C. The Deadline For The Submission And Receipt Of Bids; And D. Any Important Bid Evaluation Criteria (e.g., The Application Of A Margin Of Preference In Bid Evaluation). The Ib Should Be Incorporated In The Bidding Documents. The Information Contained In The Ib Must Conform To The Bidding Documents And In Particular To The Relevant Information In The Bid Data Sheet. Republic Of The Philippines Province Of Bukidnon Municipality Of Lantapan Invitation To Bid For Purchase & Installation Of Office Aircondition (1st Bid) 1. The Local Government Unit Of Lantapan, Through The Capital Outlay Cy 2019 And Supplemental Budget 2024 Intends To Apply The Sum Of (php 200,000.00) Being The Abc To Payments Under The Contract Purchase And Installation Of Office Air-condition Itb # 2025-01-22-001 Bids Received In Excess Of The Abc Shall Be Automatically Rejected At Bid Opening. 2. The Local Government Unit Of Lantapan Now Invites Bids For The Above Procurement Project. Delivery Of The Goods Required Is 15 Calendar Days. Bidders Should Have Completed, From The Date Of Submission And Receipt Of Bids, A Contract Similar To The Project. The Description Of An Eligible Bidder Is Contained In The Bidding Documents, Particularly, In Section Ii (instructions To Bidders). 3. Bidding Will Be Conducted Through Open Competitive Bidding Procedures Using A Non-discretionary “pass/fail” Criterion As Specified In The 2016 Revised Implementing Rules And Regulations (irr) Of Republic Act (ra) No. 9184. Bidding Is Open To All Interested Bidders, Whether Local Or Foreign, Subject To The Conditions For Eligibility Provided In The 2016 Revised Irr Of Ra No. 9184. 4. Prospective Bidders May Obtain Further Information From The Local Government Unit Of Lantapan And Inspect The Bidding Documents At The Address Given Below During Mondays To Fridays From 8:00 A.m. To 5:00 P.m. 5. A Complete Set Of Bidding Documents May Be Acquired By Interested Bidders On January 22, 2025 To January 29, 2025 From The Given Address And Website(s) Below And Upon Payment Of The Applicable Fee For The Bidding Documents, Pursuant To The Latest Guidelines Issued By The Gppb, In The Amount Of Five Hundred Pesos (php 500.00). The Procuring Entity Shall Allow The Bidder To Present Personally Its Proof Of Payment For The Fees. [note: For Lot Procurement, The Maximum Fee For The Bidding Documents For Each Lot Shall Be Based On Its Abc, In Accordance With The Guidelines Issued By The Gppb; Provided That The Total Fees For The Bidding Documents Of All Lots Shall Not Exceed The Maximum Fee Prescribed In The Guidelines For The Sum Of The Abc Of All Lots.] 6. The Local Government Unit Of Lantapan Will Hold A Pre-bid Conference On _____ At _____which Shall Be Open To Prospective Bidders. 7. Bids Must Be Duly Received By The Bac Secretariat Through Manual Submission At The Bac Office 1st Floor, Barangay Alanib, Lantapan, Bukidnon, On Or Before 9:45 A.m (philippine Standard Time) On January 29, 2025. Late Bids Shall Not Be Accepted. 8. All Bids Must Be Accompanied By A Bid Security In Any Of The Acceptable Forms And In The Amount Stated In Itb Clause 14. 9. Bid Opening Shall Be On January 29, 2025 At 10:00 O’clock A.m At The Given Address Below. Bids Will Be Opened In The Presence Of The Bidders’ Representatives Who Choose To Attend The Activity. 10. [insert Such Other Necessary Information Deemed Relevant By The Procuring Entity Such As The Use Of A Back-up Data Or Cloud Storage For Large Files Uploaded For Online Bid Submissions] 11. The Local Government Unit Of Lantapan Reserves The Right To Reject Any And All Bids, Declare A Failure Of Bidding, Or Not Award The Contract At Any Time Prior To Contract Award In Accordance With Sections 35.6 And 41 Of The 2016 Revised Irr Of Ra No. 9184, Without Thereby Incurring Any Liability To The Affected Bidder Or Bidders. 12. For Further Information, Please Refer To: Lani D. Arida Bac Secretariat Bac Office, 1/f Barangay Alanib Purok 3, Alanib, Lantapan Bukidnon, Philippines Email Add: Lanialbertodevibar45@gmailcom.ph 13. You May Visit The Following Website/s: Lantapan.gov.ph For Downloading Of Bidding Documents: Www.philgeps.gov.ph Date Of Issue: January 22, 2025 Celestino M. Alob Barangay Alanib/bac Chairperson Reference No.: Itb # 2025-01-22-001 Name Of Project: Purchase & Installation Of Office Air-condition Location Of Delivery: Bgu-alanib, Lantapan, Bukidnon Abc: Php 200,000.00 Item No. Item Description Unit Of Issue Quantity Unit Price Amount 1 2.5tr ( 3.0hp)floor Mounted Inverter Model: 28tcfs/ji Cooling Capacity: 28,000(18,000-30,000) Kjh Heating Capacity:29,000(20,000-31,000)kjh Eer For Cooling3.18 W Power Supply: 220-240 V, 1 Phse/60hz Voltage Range : 165-264 Current: 11 Refrigerants:r32 Self Diagnose: Anti Cold Wind Auto Retart Golden Fin Note: Free Installation Unit 2 Total Total Bid Price In Figure: Total Bid Price In Words: Prepared And Submitted By:

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