Bengaluru Water Supply And Sewerage Board Tender

code04 - Earth work excavation for pipeline trenches by mechanical means as per drawing and technical specifications, including setting out, construction of shoring, strutting, barricading, caution lights, bracing, using sight rails & bonding rods at every 100 mm wherever necessary as directed, removal of stumps and other deleterious matter, dressing of sides and levelling the bottom of trench to the extent required , utilising the available excavated earth locally for the work and all other appurtenances to complete in the following strata .Hard roak (blasting prohibited) depth upto 1.50m Considering 20% of EW qty

code05 - Considering 30% of EW qty Depth exceeding 1.5 m, but not exceeding 3 m

code06 - Supplying S&S RCC SPUN/VIBRATED CAST PIPES (PEINFORCED) pipes Np-3 class conforming to IS:458-1988 with latest amentments using ordinary portland cement, for sanitary works and conveying to work site.rolling and lowering into trenches, laying true to Ime and level including loading and unloading at both destitutions and jointing of pipes and specials, perfect linking of joints with jack to correct position including cost of jountingmaterials, se, rubber rings conforming to IS: 5382 for S&S RCC pipes, with all leads and lifts as directed and giving necessary hydraulic test as perlSS to the required pressure and commissioning etc. complete. Contractorwill make his own artangements for procuring water for testing). Before theexecution of the work, the contractor shall carry out the survey 300 mm dia

code07 - Providing PVC ringtite pipes conforming to IS 4985:2000 with latestamendments and conveying to worksite, rolling and lowering intotrenches, laying true to line and level and perfect linking at joints, testingand commissioning, including loading unloading at both destinationsand cuts of pipes wherever necessary including jointing of PVC pipesand specials (excluding cost of specials) with jointing of approvedtype, with all labour with all lead & lift including encasing the pipealround to a depth of not less than 15 cms, with soft gravel or selectedearth available from the excavation etc. complete and giving necessaryhydraulic test to the required pressure as per ISS (Contractor will makehis own arrangements for procuring water for testing) etc complete.

code08 - 110mm dia PVC couplers

code09 - 110mm dia PVC Elbows

code10 - 110mm dia PVC Tee

code11 - 110mm dia PVC Bend

code12 - 110mm dia PVC service saddles

code13 - 110mm dia PVCReducer

code14 - Refilling available earth around trenches/pipelines, cables in layers not exceeding 20 cms in depth, compacting each deposited layer by ramming after watering with a lead upto 50 m , and lift upto 1.5m. Including cost of all labour complete as per specifications.

code15 - Providing and constructing "WIRE CUT BRICK MACHINEHOLE CHAMBERS" using ortland/Pozzolana cement, conical in shape at top,with CC 1:3:6 foundation using 40mm and down size graded metal ofapproved 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, 12mm thick,except for the conical surface outside where the plaster thickness shall be 20mm. 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 20mm and down size. Providing and fixing SFRC Machinehole frame and cover (Heavy Duty) conforming to IS:12592 with latest amendment, in CC 1:2:4.Providing and fixing footsteps made of 12mm dia. steel bars (Fe-500)with 3mm thick plastic encapsulation (IS-10910). The footsteps shall be fixed 30cms apart and on CC block embeded to masonry wall. The wholeworks include watering, curing, barricading, danger lighting, pouring tar over MH frame and cover, cost of tar, shoring, strutting, de-watering, engraving Machinehole number with flow direction on the inner conical surface etc. as per the drawing etc. as per technical specifications and for the following diameters and depth etc. for 1.2mm dia: 1.00 Depth & SFRC Cover & frame : on the line MH

code16 - above 1.00 Depth manholed interms of 0.1mtr

code17 - 2.00 Depth & SFRC Cover & frame : on the line MH

code18 - above 1.00 Depth manholed interms of 0.1mtr

code19 - Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specification including premixing the Material with water at OMC in mechanical mix plant carriage of mixed Material by tipper to site, laying in uniform layers with paver/grader in sub-base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density.

code20 - Providing and applying primer coat with SS1 grade Bitumen Emulsion on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.70kg per m2 using mechanical means.300mm dia

code21 - Providing and laying Bituminous Macadam with 120 tph capacity hot mix plant batch type using crushed aggregates of specified grading premixed with bituminous binder VG-40 @ 3.3% by weight of mix, transported to site, laid over a previously prepared surface with mechanical paver finisher to the required grade, level and alignment and rolled as per clauses 501.6 and 501.7 to achieve the desired compaction.

code22 - Tack coat on Bituminous surface. Providing and applying tack coat with RSI Bituminous Emulsion using emulsion pressure distributor at the rate of 0.20 kg/m2 on the prepared bituminous surface cleaned with mechanical broom

code23 - Providing and laying Bituminous Concrete with 120 TPH capacity hot mix plant batch type using crushed aggregates of specified grading, premixed with bituminous binder VG-30@ 5.2 per cent of mix and filler, transporting the hot mix to work site, laying with mechanical 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 complete in all respects.

code24 - Dewatering the sewage / storm water by using reqired HP submersible pump for the diversion of storm / sewage during the execution of work.Considering for one Pump. 10HP PUMP compete (1nos pump* 3days*8Hour)

code25 - Providing, filling and laying of sand bags filled with sand / clay for diversion of sewage during execution of work.

code26 - Removal of unserviceable soil with disposal upto a suitable distance as directed by the Engineer incharge of work.