Kolkata Municipal Corporation Tender

BUILDING WORKS (B) DISMANTLING, CUTTING CHASE, HOLES ETC 6. Dismantling artificial stone flooring upto 50 mm. thick by carefully chiselling without damaging the base and removing rubbish as directed within a lead of 75 m. a) In ground floor including roof.

Labour for taking out old soling edging including removing debris. (a) Single flat soling ( Ref :PWD (Bldg.)-2017, It. No. 15, Page No. 230)

Labour for laying single brick flat soling including ramming and dressing bed to proper level and filling joints with powdered earth. ( Ref :PWD (Bldg.)-2017, It. No. 2, Page No. 14)

Single Brick Flat Soling of picked jhama bricks including ramming and dressing bed to proper level and filling joints with local sand. ( Ref :PWD (Bldg.)-2017, It. No. 1, Page No.14 & 3rd Corrigenda Addenda dtd-04.06.18,P-1)

35mm thick Cement Concrete Pavement (1:2:4) in floor/footpath etc. with graded stone chips 11.2mm down,properly leveled with 3mm thick screen on top by cement slurry paste@2.75kg cement per Sqm. Rounding off corners, chequering as required including taking necessary protective measure complete in Gr.floor/footpath.

Supplying and Laying in the specified pattern of Interlocking Concrete Block Pavements (ICBP) with concrete blocks (with Concrete grade as specified as per Table 1 of IS 15658 : 2006) manufactured from BIS licensee manufacturer, with spacer nib (Small protruding profiles on the vertical face of a paver block used as a device for keeping minimum joint gap in between the paving blocks, as per Cl. No 3.26 of IS: 50mm thick (ii) Coloured Decorative  (12th Corrigenda & addenda dated14.10.2020)15658)and of specified size and shape with aspect ratio (The ratio of length to thickness of a paver block, as per CL.No.3.3 of IS: 15658) as per Table 2 of IS :15658 with flexural strength/breaking load as per Annexure G of IS:15658.on the prepared base course of specified CBR as per Table 1 of IRC SP 63 (2018) or else as mentioned in design and drawing with a cushion of compacted bedding sand of 25-35 mm thick (grading of the bedding sand as per clanse 6.5.1 of IRC SP 63) and filling up the gaps in between paver blocks with joint filling sand (the grading of the joint filling sand will he us per clause 6.5.2 of IRC SP 63) and completing the edges with cut blocks as per Cl. No. 8.7 af IRC SP-63(2018) with proper confinement of bedding and joint filling sand, compaction levelling and filling up of the edge gap.

Laying of interlocking Paver Blocks as per approved design over 20-30mm th medium yellow sand bed with true to line,lavelling,proper compaction with vibrator etc. with jointing with kerb/edge should be made with Cement Concrete (1:2:4)etc. as per the direction of the Engineer-in-charge and including cost of materials,labour etc. complete

Raising cover and frame of Special Inspection Pit with CBW (1:4), 250 mm thick up to 100mm high with 20mm thick sand and cement plaster (1:4) including finishing with neat cement after cutting the asphaltum pavement taking out and re-fixing the existing cover and frame with cement concrete (1:1.5:3) with stone chips all round the frame surface including removal of surplus spoils. ( Ref :Rate based on PWD Current SOR, PWD(R&B) 2018, p-233 (it -2.05), p-332(it-18.06), p-222 sl-5(a), p-332 (it -18.05)), pg-227, I-1.03, pg-230,Table-I , Table III-2 pg-226, -6) PWD(B) 2017 , p-189 (it -1) and 3rd corria. & Adda., p-49&50, Date 04.06.2018, p-192 (it -15), p-26 (it -10(i)), consumption chart pg-B-60, sl-3 and Annex-II , Format-A & 3rd Corr. & adda. dtd-04.06.2018, p-303 ,    p-191 (i) and 3rd Corr. & Adda, page-52, p-303, p-269 (it -1) and 1st Corria & Adda, Page-4, Date 08.01.2018, page-12 (item -13))

Taking out stone slab of kerb & channel of road side drain and stacking as directed. b) flat channel stone. ( Ref :Rate based on PWD Current SOR. [PWD(B)2017,p-303])

Taking out stone slab of kerb & channel of road side drain and stacking as directed. a) vertical kerb stone. ( Ref :Rate based on PWD Current SOR. [PWD(B)2017,p-303])

Resetting of Stone Slabs of kerb & channel of road side drain to correct line and level including cement pointing (1:2). a) Vertical Kerb ( Ref :Rate based on PWD Current SOR. [PWD(B) 2017, p-303 & 3rd corri. Addea dtd-04.06.2018. P-52 ])

Resetting of Stone Slabs of kerb & channel of road side drain to correct line and level including cement pointing (1:2). a) Vertical Kerb ( Ref :Rate based on PWD Current SOR. [PWD(B) 2017, p-303 & 3rd corri. Addea dtd-04.06.2018. P-52 ])

Supplying and laying factory made vertical kerb stone of cement concrete M-20 (1:1.5:3) machanicaly vibrated size 500mm X 300mm X 150mm tapered at top, making joints with cement mortar (1:4) incldg cost of all materials and labours but excluding the cost of under bed (for road-diveder / footpath) ( Ref :Rate based on PWD Current SOR [PWD(B) 2017,  p-26 (it -10(i)), consumption chart pg-B-60, sl-3 and Annex-II , Format-A & 3rd Corr. & adda. dtd-04.06.2018, p-303 ,    p-191 (i -6) and 3rd Corr. & Adda, page-52,   PWD-2018(R & B)  p-332 (it -18.05)), Chapter-1, pg-227 I-1.03, pg-230,Table-I , Table III-2 pg-226, )

Supplying and laying factory made flat channel stone of cement concrete M-20 (1:1.5:3) machanicaly vibrated; size 500mm X 300mm X 100 mm; making joints with cement mortar (1:4) incldg cost of all materials and labours but excluding the cost of under bed (for road-diveder) ( Ref :Rate based on PWD Current SOR [PWD(B) 2017,  p-26 (it -10(i)), consumption chart pg-B-60, sl-3 and Annex-II , Format-A & 3rd Corr. & adda. dtd-04.06.2018, p-303 ,    p-191 (i -6) and 3rd Corr. & Adda, page-52,   PWD-2018(R & B)  p-332 (it -18.05)), Chapter-1, pg-227 I-1.03, pg-230,Table-I , Table III-2 pg-226, )

BUILDING WORKS.   (U) - Additional Items: 1) Supplying and laying true to line and level Anti-Skid, Full Body, Homogeneous & Granular finish Vitrified Tiles conforming to IS:15622-2006 & IS 4457-2007 and testing shall be made in accordance with IS:13630 [Non- modular sizes for tiles with Skid resistance 0.5, Mohr's hardness 5.0, Staining resistance: Class-1, Water Absorption: E 0.5%], MOR 35 N/sq.mm in Internal area of building e.g. Toilet Block, Passage, Corridor, Accessible Open Terrace etc. set in 20 mm sand cement mortar (1:4) and 2 mm thick cement slurry at back side of tiles using cement @ 2.91 Kg./Sqm or using Polymerised Adhesive (6 mm thick layer applied directly over finished artificial stone floor/ Mosaic etc without any backing course) laid after application slurry using 1.75 Kg of cement per Sqm below mortar only, joints grouted with admixture of white cement and colouring pigment to match with colour of tiles/ epoxy grout materials of approved make as directed and removal of wax coating of top surface of tiles with warm water and polishing the tiles using soft and dry cloth upto mirror finish complete including the cost of materials, labour and all other incidental charges complete true to the manufacturer's specification and direction of Engineer-in-Charge. (White cement, synthetic adhesive and grout material to be supplied by the contractor). b) In Ground Floor: Sizes-600 mm x600mm x10 mm with breaking strength 1500 N. Note: Add extra for each addl, floor over the rate above Ground Floor(I) upto 4 th floor- Rs. 12/-per Sq.m(II) above 4th floor -Rs. 16/- per Sq.m

Water Bound Macadam Sub Base by consolidating Jhama metal / Laterite chelly or stone metal / shingles of specific size in hard crust to requisite thickness (measured after compaction) in layers including screening of metals etc. as necessary, hand packing, sweeping, watering and rolling in stages with power roller to proper line, grade and camber, lighting, guarding & barricading and making necessary earthen bundh of one metre width on each side where necessary to protect edges and preparing the bed by necessary cutting or filling and rolling all complete including the cost of all materials and hire and labour charges of all men and machineries and compacting to the required density, as per Clause 404 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). (ii) For Construction of Sub Base by consolidating Brick Bats / Laterite (90 mm to 45 mm) ( Ref :PWD (Rds & Brdgs)-2018, It. No. 4.10 (ii) Page No.247  & page-222 sl. No-5 (f))

Water Bound Macadam Sub Base by consolidating Jhama metal / Laterite chelly or stone metal / shingles of specific size in hard crust to requisite thickness (measured after compaction) in layers including screening of metals etc. as necessary, hand packing, sweeping, watering and rolling in stages with power roller to proper line, grade and camber, lighting, guarding & barricading and making necessary earthen bundh of one metre width on each side where necessary to protect edges and preparing the bed by necessary cutting or filling and rolling all complete including the cost of all materials and hire and labour charges of all men and machineries and compacting to the required density, as per Clause 404 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). (i) For Construction of Sub Base by consolidating Jhama metal  / Laterite (63 mm to 45 mm) (Moorum replaced with course sand) ( Ref :PWD (Rds & Brdgs)-2018, It. No. 4.10(i) Page No.247 & page-222 sl. No- 1 & 5 (e))

Providing and applying tack coat with Cationic Bitumen Emulsion of approved grade conforming to IS: 8887-1978 on the prepared surface cleaned with Hydraulic broom, moistening the surface including cost and carriage of emulsion, hire charges of machinery and labour, cost of fuel and lubricants all complete as per Clause 503 of Specifications for Road & Bridge Works of MoRT&H (5th Revision). (ii) On Granular surfaces treated with primer. (Using Bitumen emulsion at the rate of 0.25 to 0.30 kg per sqm.) ( Ref :PWD (Rds & Brdgs)-2018, Page No.213  (Table No.3.3?1) & Page No. 251, It. No. 5.02, Table no.I-2 of pg-219, pg-220 Format-B, PWD(R&B) 2018, pg-228 item-1.03 (i), Pg-230,Table-I, It-4,)

Estimated amount

Add: 9%SGST

Add: 9%CGST

1% LWC