Bangalore Water Supply And Sewerage Board Tender

b. -do-2 to 4 m depth

EXCAVATING FOR PIPE LINE TRENCHES OF REQUIRED WIDTH by mechanical / & manual means including dressing sides, ramming of bottoms, providing barricading, danger lighting, shoring, strutting, dewatering, etc. IN HARD ROCK BY CHISTELLING TO PROPER SLOPE etc a. 0 to 2 m depth

b. 2 to 4 m depth

Excavation of Hard Rock by diamond rope cutting method. Using machinery like generator (electric), Hitachi (Hydraulic excavator), breaker, compressor and diamond rope with MS Rods etc, complete as per specifications and directions of the Engineer In Charge

Extra charges for excavation in all classifications in watery situations or foul conditions may be paid duly obtaining approval from the Chief Engineer as under towards DEWATERING with recuperation upto two meter depth and thereof a. 0 to 2 m depth

b. -do- 2 to 4 m depth

Cutting road surfaces for pipeline trenches and disposing of the excavated stuff as directed including barricading, danger lighting etc. in the classifications- a. Cutting asphalt road

b.-do- Cutting Macadam road

c. - do- Cutting concrete road:

Provide bedding for the pipeline trenches in black cotton and rock reaches including watering and consolidation by punners etc. complete with all lead and lift with-Murrum bedding

Providing & Filling in foundation with granite/trap broken metel 100 mm and down size with approved sand including hand packing, ramming, watering, including cost of all materials and labour with lead and lift complete as per specification.

REFILLING OF EARTH around pipelines, in layers not exceeding 20 cms. in depth, compacting each deposited layer by ramming after watering all lead and lift including cost of all labour including consolidation by mechanical means approved by the Engineer in charge, when earth is at suitable moisture content with desired field density upto 95% maximum dry density (modified heavy proctor test) for restoration of roads without settlement including HOM of machineries, complete. (The contractor shall take care while consolidating the earth, so that, pipes laid are not damaged due to mechanical compaction and shall restore the damaged pipes at his own cost, in case of damage) etc. a. pproved earth available nearby, lead upto 100 M and lift upto 1.5 M. Note: In exceptional cases, earth may be obtained from borrow pit with extra lead, duly obtaining approval from the Chief Engineer

b.-do- Approved earth obtained from borrow pits with all lifts and leads, transporting to site within 1 km

Supplying lowering laying, jointing, testing and commissioning of following diameters glazed stone ware pipes, conforming to IS 651:1992, (with 5th revision) in all respects jointing with EPDM rubber rings (seals according to EN 681 & ASPM 425) The rubber seals joints pipe will have groves in interior of socket and exterior of the spigot. The rubber gasket shall be prefixed at the factory by the manufacturer rigidly with approved glue to have leak proof joint including conveying of pipe to work site and rolling and lowering into trenches, laying true to line, level and perfect linking at joints testing and commissioning including loading and unloading at both destinations and cuts of pipes wherever necessary including jointing of GSW pipes and specials, with rubber gaskets conforming to EN 681 and ASTM C-425 including cleaning the socket and spygot with soap solution and applying talcum powder for detecting crack, then applying glue and before inserting of rubber gaskets, jacking and fixing in perfect condition including the cost of soap solution, talcum powder and glue etc. and giving necessary hydraulic test to the required pressure of water head with all lead and lifts including costing of jointing materials and all necessary survey works for laying of sewers etc., and disposal of debris as directed etc., complete. (Contractor will make his own arrangements for procuring for testing) with Rubber ring gasket joints. a. 230mm dia

Supplying S&S RCC SPUN / VIBRATED CAST PIPES (REINFORCED) pipes NP-3 Class conforming to IS:458-1988 with latest amendments using ordinary portland cement, for sanitary works and conveying to work site, rolling and lowering into trenches, laying true to line and level including loading and unloading at both destinations and jointing of pipes and specials including cost of specials, perfect linking of joints with jack to correct position including cost of jointing materials, i.e, rubber rings conforming to IS: 5382 for S&S RCC pipes, with all leads and lifts as directed and giving necessary hydraulic test as per ISS to the required pressure and commissioning etc. complete. (Contractor will make his own arrangements for procuring water for testing). Before the execution of the work, the contractor shall carry out the survey and will be paid extra for the same as per seperate item. a. 350 mm dia

b. -do- RCC NP3 Class pipe of 500 mm dia.

Providing and constructing “WIRE CUT BRICK MANHOLE CHAMBERS” using suplhate resistant cement, coNickel in shape at top, with CC 1:3:6 foundation using 40 mm and down size graded metal of approved quality and with an offset of 0.15M alround the chamber. Construct Brick masonry in CM 1:4, 340 mm thick, with wirecut bricks of approved quality, plaster inside and out side with CM 1:3, 12 mm thick, except for the coNickel surface outside where the plaster thickness shall be 20 mm. Slope inside to be 1:6 in the concrete towards central drain and finished smooth. Fixing of pipes in CC 1:2:4 with graded metal of 20 mm and down size. Supplying and fixing SFRC manhole frame and cover conforming to IS:12592 with latest amendment, in CC 1:2:4. Supplying and fixing footsteps made of 12 mm dia. steel bars (Fe-415) with 3 mm thick plastic encapsulation (IS-10910). The footsteps shall be fixed 30cms apart and on CC block embedded to masonry wall. The whole works include excavation in all types of soils, watering, curing, barricading, danger lighting, pouring tar over MH frame and cover, cost of tar, shoring, strutting, de-watering, engraving manhole number with flow direction on the inner coNickel surface etc. as per the drawing etc. as per technical specifications and for the following diameters and depth etc. 1.2m dia manholes - a.For 1.00M depth

b. -do- For additional depth from 1 to 2m depth

c. -do-For 2.00M depth

d.-do-For additional depth from 2 to 3m depth

e.-do-For 3.00M

Providing and constructing “WIRE CUT BRICK MANHOLE CHAMBERS” using suplhate resistant cement, coNickel in shape at top, with CC 1:3:6 foundation using 40 mm and down size graded metal of approved quality and with an offset of 0.15M alround the chamber. Construct Brick masonry in CM 1:4, 340 mm thick, with wirecut bricks of approved quality, plaster inside and out side with CM 1:3, 12 mm thick, except for the coNickel surface outside where the plaster thickness shall be 20 mm. Slope inside to be 1:6 in the concrete towards central drain and finished smooth. Fixing of pipes in CC 1:2:4 with graded metal of 20 mm and down size. Supplying and fixing SFRC manhole frame and cover conforming to IS:12592 with latest amendment, in CC 1:2:4. Supplying and fixing footsteps made of 12 mm dia. steel bars (Fe-415) with 3 mm thick plastic encapsulation (IS-10910). The footsteps shall be fixed 30cms apart and on CC block embedded to masonry wall. The whole works include excavation in all types of soils, watering, curing, barricading, danger lighting, pouring tar over MH frame and cover, cost of tar, shoring, strutting, de-watering, engraving manhole number with flow direction on the inner coNickel surface etc. as per the drawing etc. as per technical specifications and for the following diameters and depth etc. 1.5m dia manholes -a. For 3.00M depth

b. -do- For additional depth from 3 to 4m depth

c. -do- For 4.00M depth

d. -do-For additional depth from 4 to 5m depth

Supplying, lowering, laying, jointing, testing and commissioning of Glazed Stone Ware Pipes of following dia, conforming to IS 651:1992, IS 4127 with latest amendments, including conveying to work site, caulking with hemp dipped in tar and jointing with CM 1:1.5 using OPC, perfect linking and curing for 10 days and testing with water etc. with all lead, lifts and as per Technical Specifications. The cost to include the cost of all jointing materials, necessary survey works for laying of sewer lines etc. complete. The contractor will make own arrangements for procuring water for testing -100 mm dia

Supplying, lowering, laying, fixing, testing and commissioning of SW JUNCTION PIPES, conforming to IS: 651:1992 with latest amendments, of sizes, including conveying to work site and caulking with hemp dipped in tar cement and jointing with CM 1:1.5 with sulphate resistant cement conforming to IS - 12330 with latest revisions and amendments, perfect linking, curing and testing with water, with all lead and lifts, including cost of jointing materials etc. complete for : (Contractor will make own arrangements for procuring water for testing) - 225 mm x 100 mm dia

Removing BS slabs of drain and stacking with all lead and lifts as directed by the Engineer in charge.

Refixing stone of drains and pointing in CM1: 3 with all lead and lifts as directed by the Engineer in charge.

Dismalting size stone masonry in lime mortar and stacking the size stone and removing and disposing the debries with all lead & lifts etc., complete including cost of labour and equipments etc., complete as per specification and as directed by the Engineer in charge.

Providing and constructiong granite /trap/balat size stone masonary in foundation with cement mortar 1:6, with available stone hammerd dressed in courses not less than 20cms high, bound stones at two m apart in each course including cost of materials, labour, curing complete as per specfiactions

Disposal off the excess excavated earth of all types by vehicle including loading, unloading with all lead and lifts, labour, HOM of machineries etc- Distance of 3 to 4 KM

Clearing and grubbing land including uprooting rank vegetable grass, bushes, shrubs, saplings and trees upto 300 mm girth by manual means, in areas of light jungle, removal of stumps, disposal of unserviceable materials, stacking of serviceable materials from road boundary etc. including cost of labour charges, all lead and lifts, etc. complete as directed by the Engineer in charge. MOST specification number 201.

Excavation for ramming / jacking pits and receiving pit. The work includes cutting of asphalted/ concrete surface, excavation in all types of soil and strata, dewatering, disposal of debris, refiling the trenches with consolidation, restoration of road surface to normal surface by concreting/asphalting etc., complete.- Size up to 5 mts X 3 mts - depth up to 4 mts

Installation of product pipe by manual jacking method - Manufacturing, providing, transporting, rolling, lowering, laying & jointing, testing, commissioning of ERW (Electric Resistance Welded), SAW (Submerged Arc Welded) MS pipe (Fe-410 grade) conforming to IS 3589-2001 with latest amendments including perfect linking welding of joints to correct position including cost and conveyance of pipes and materials with all lea., lift, cost of labour, loading and unloading of pipes for the following diameters with specified thickness of plate as noted below including bailing out of water wherever necessary for laying of MS carrier pipe of suitable dia including inside and outside of casing pipe painted with two coats of Anti corrossive tankmastic paint. Installation of steel pipe by Ramming / Jacking method to cross Railway track / NH /BDA /BBMP/Other roads/Existing utilities / NALA crossings, filling the gap between casing pipe and carrier pipe with quarry grit using compressor with all necessary equipments, plants etc, complete. Suitable spacers 0f HDP/MS or other similar material should be provided in between carrier & casing pipe to prevent carrier pipe forming metallic contact with casing pipe. The rates are inclusive of all taxes and duties. Note : a. The cost of jacking is inclusive of cost M.S. casing pipe of specified thickness b. The cost of carrying pipe is separate and provision shall be made as per site requirement c. The cost of Jacking includes all leads lifts, cost of consumables, fuel charges, labour and Taxes and duties. d. The cost of jacking and receiving pits shall be proposed separately as per site requirement. Jacking of 900 mm dia & 12 mm thick M.S. Casing Pipe

providing and removing centering, shuttering , strutting proppping etc., and removal of form work for foundations, footing , bases columns for mass concrete including cost of all materials labour complete as specification.

providning T.M.T s bars FE 500, steel reinforcement for RCC works including straigntening cutting, bending , hooking ,placing in position lapping and or welding wherever requried , tying with binding wire and anchoring to the adjoinging members wherever necessary complete as per design ( laps, hookes and wasting shall not be measured and paid cost of materials, labour, HOM complete as per sprcification

ROAD RESTORATION: KSRB M400-14.1.Providing , laying , spreading and compacting cushed stone aggregates of granite / trap / basalt of specific sizes to Water bound macadam specifications inculding spreading in uniform thickness, hand packing ,rolling with 3 - wheeled steel/ vibratory roller 8 -10 tonnes in stages to proper grade and cambers, appling and brooming requisite type of screening / binding materials to fill up the interstices of coarse aggregates , watering and compacting to the requried density complete as per specification material, A . By manual means

Providing, laying, spreading and compacting cushed stone aggregates of granite / trap / basalt to wet mix macadam (WMM) specifications including pre mixing the material with water at OMC in mechanical mix plant carriage of mixed method of tipper to site, laying in uniform layers with paver in sub-base/ base course on well prepared surface and compacting with vibratory roller to achieve the desired density complete as per specifications.

Providing and applying primer coat with S.S bitumen emulsion on prepared surface of granular base such as WMM including cleaning of road surface and spraying primer at the rate of 0.60 kg/ sqm using mechanical means complete as per specificatons.

Providing and applying bitumen macadam (BM) 50mm thick on prepared surface with crushe coarse aggregates as per design mix formula for base / binding course including loading of aggregates with F.E. loader, hot mixing of stone aggregates and bitumen in hot mix plant, transporting the mixed material in tipper to paver and laying mixed materials with paver finisher to the required level and grade, rolling by power roller to achieve the desired density, but excluding cost of primer / tack coat including lead, lift and cost of all materials, labour, HOM of machineries complete as per specifications. - using 40/60 TPH capacity H.M.P. with Mechanical paver Gr-II (50 mm to 75 mm) with 3.4% VG-30 Bitumen.

Providing and laying bituminous concrete (BM) 40mm thick with hot mix plant, using crushed aggregate of specified grading, premixed with bituminous binder and filler, transporting the hot mix to work site, laying with a paver finisher to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per MORTH specification clause No. 507 of morth complete in all respects as per specifications. - do - using 40/60 TPH capacity H.M.P. with sensor paver Gr-I (50 mm to 65 mm) with 5.2% VG-30 Bitumen.

Providing and applying tack coat using 80/100 grade bitumen (VG10) on the prepared black topped surface at 2.5 kg per 10 sqm, heating bitumen in boiler fitted with spray set (excluding cleaning of road surface) including cost of all materials, labour, HOM of machineries complete as per specifications.

Providing and laying SEAL COAT for sealing the voids on Bituminous surface, laid to the specified levels grade and cross fall manually and rolling with power roller 8 -10 tonne capacity inculding cost of all materilas, labours, HOM complete as per the specifiaction clauses 511 of morth revision - do- TYPE A using graded aggregates 6.7mm and down size at 0.009 cum/sqm with bitumen VG -10(80/100 garde) at 0.98 Kg/sqm.

Providing and laying in position plain cement concrete of mix 1:3:6 with OPC cement @ 220kgs, with 20mm and down size graded granite metal coarse aggregates @0.69 cum and fine aggregtes @ 0.56cum, machine mixed, concrete laid in layers not exceeding 15 cms. thick, well compacted, in foundation,plinth and cills, ncluding cost of all materials, labour, HOM of machinery, curing complete as per specifications.

Providing and laying in position plain cement concrete of mix M15 with cement at 240 kgs, with 20mm and down size graded granite metal, coarse aggregates @ 0.878 cum and fine aggregates @ 0.53cum, machine mixed, concrete laid in layers not exceeding 15 cms thick, well compacted in foundation, plinth and cills / for road works including including cost of all materials, labour, HOM of machinery, curing complete as per specification.