Bengaluru Water Supply And Sewerage Board Tender

code05 - Earth work excavation for pipeline trenches by mechanical means as per drawing and technical specifications, including setting out, construction of shoring, strutting, cost of blasting materials, barricading, caution lights, bracing, using sight rails and bonding rods at every 100 mm whevere 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 etc., and all other appurtenances complete in the following strata. Hard rock (blasting prohibited) Depth upto 1.50m Considering 20%of EW qty upto 1.5 mt Depth

code07 - Considering 20%of EW qty 1.5 mt Depth exceeding 1.5m,but not exceeding 3m

code08 - Supplying S and S RCC SPUN/VIBRATED CAST PIPES( REINFORCED) pipes NP-3 class confirming to IS ;458-1988 with last amentments using ordinary portland cement for sanitary sanitary works and conveing to work site , rolling and lowering into trenchs ,laying true to line and levell including perfect linking of joints with jack to correct position including cost of jointing materials ,i.e,rubber rings conforming to IS 5382 for S and S RCC pipes with all leads and lifts as directed and giving necessary hydraulic test as per ISS to the required pressure and commissioning ect.complete.( Contraractor will make is own arrangements for procuring water for testiung).Before the execution of the work,the contractor shall carry out the survey.

code09 - Providing PVC ringtite pipes conforming to IS 4985 2000 with latest amendments and conveying to work site,rolling and lowering into trenches,laying true to line and levell and perfect linking of joints, testing and commissioning,including loading unloading at both destinations and cuts of pipes whereever necessary including jointing of PVC pipes and specials ( excluding cost of specials) with jointing of approved type,with all labour with all lead and lift including encasing the pipe alround to a depth of not less than 15cms.with soft gravel or selected earth available from the excavation ect .complete and giving necessary hydraulic test to the required pressure as per ISS.( Contraractor will make is own arrangements for procuring water for testiung) for House Connection 110MM Dia PVC

code10 - Refilling available earth around trenchs/pipelines,cables in layers not exceeding 20cms in depth , compacting each deposited layer by ramming after watering with a lead upto 50m,and lift upto1.5m.Including cost of all labour complete as per specifications

code11 - Providing and constructing “WIRE CUT BRICK MACHINEHOLE CHAMBERS” using Portland/Pozzolana cement, conical in shape at top, with CC 1 3 6 foundation using 40mm and down size graded metalof approved quality and with an offset of 0.15M alround the chamber. Chamber.Construct Brick masonary in CM1 4,340mm thick with wire cut bricks of approved quality,plaster inside and outside 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 centrel drain and finished smooth.Fixing of pipes in CC 1 2 4 with gartded metal of 20mm and down size. Supplying and cfixing SFRC Machinehole frame and cover (Heavy Duty) conforming to IS 12592 with latest amendment ,in CC 1 2 4.Supplying 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, pouringtar over MH frame and cover, cost of tar, shoring, strutting, de-watering,engraving Machinehole number with flow direction on the inner conicalsurface etc. as per the drawing etc. as per technical specifications and for the following diameters and depth etc. for 1.2mm diaCirc.BM.H Depth 2.00 Mtrs Depth

code13 - Above 2.0m depth MH interms of 0.1m

code14 - Dismantling the damaged or collapsed Machinehole ,conical in shape, and reconstructing the same for the same dimensions, with machine made wire cut brick in CM 1 4 with ordinary portland cement etc. as per design and specifications. The existing ring, cover and CC beeding to be used.

code15 - Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete. wood work, steel work, including T and P and scaffolding wherever necessary sorting the dismantled material, disposal of unserviceable and stacking he serviceable material with all lifts and lead-Prestressed /RCC grade M-20 and above

code16 - 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.

code17 - Providing and applying primer coat with SSI grade Bitumen Emulsion on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.70 kg/m2 using mechanical means.

code18 - 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.

code19 - 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-40at3.3% 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.

code20 - 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-40at 5.2 percent 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

code21 - Devatering the sewage/ storm water by using reuired HP submersible pump for the diversion of storm/ sewage during the execution of work considering for one pump.10HP PUMP compete

code22 - Providing, filling and laying of sand bags filled with sand/clay for diversion of sewage during execution of work

code23 - Removal of unserviceable soil with disposal upto a suitable distance as directed by the Engineer incharge of work.