Bengaluru Water Supply And Sewerage Board Tender

code04 - In ordinary / soft rock without blasting upto 1.50m depth Considering 30% of EW qty upto 1.5m depth

code05 - Considering 20% of EW qty depth exceeding 1.50 m but not

code06 - Supplying S and S RCC SPUN/VIBRATED CAST PIPES (REINFORCED) 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 line and level including loading and unloading at both destinations and jointing of pipes and specials,perfect linking of joints with jack to correct position including cost of jointingmaterials, 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 perISS to the required pressure and commissioning etc. complete. (Contractor will make his own arrangements for procuring water for testing). Before theexecution of the work, the contractor shall carry out the survey. 400mm dia

code07 - 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 1.5 m. Including cost of all labour complete as per specifications.

code08 - Providing and constracting "WIRE CUT BRICK MACHINEHOLE CHAMBERS uming Portland/Pozzolana comem, comical in shape at top, with CC 13.6 faundation using 40mm and down size graded metal of approved quality and with an offset of 0.15M alreund the chamber. Construct Brick masonry in CM 1 4, 340 mm thick, with surecut bricks al approved quality, plaster inside and out nide with CM 1 3, 12mm thick except for the conical surface outside where the plaster thickness shall be 20mm. Slope inside to be 16 in the concrete towards central drain and finished smooth. Fixing of pipes in CC. 1 2 4 with graded metal of 20mm and down sue. Supplying and fixing SPRC Machinehole frame and cover (Heavy Duty confarming to 15 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 (18-10910). The footsteps shall be fixed 30 cms apart and on CC block embeded to masonry wall. The whole works include watering, curing, barricading, danger lighting, pouring tar wer MH frame and cover, cost of tar, shoring, strutting, de-watering, engraving Machinehole number with flow directam on the inner conical surface etc. as per the drawing etc, as per technical specifications and for the following diameters and depth ete. fer 1.2mm dioCire. B M.H. 1mtr depth and SFRC and Frame

code09 - Additional point between 1.00 m to 2.00m depth

code10 - Constructing Brick Mansonry circular Machinehole 1.2 internal dia 2.00M depth and SFRC cover and Frame

code11 - Additional point between 1.00 m to 2.00m depth

code12 - Dimantling 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. For 1.2M dia 1.00 mtr depth

code13 - Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, cement concrete, wood work, steel work, including TandP and scaffolding wherever necessary, sorting the dismantled material, disposal of unserviceable material and stacking the serviceable material with all lifts and lead-Prestressed/RCC grade M-20 and above.

code14 - Providing, laying, spreading and compacting graded stoneaggregate to wet mix macadam specification including premixingthe Material with water at OMC in mechanical mix plant carriageof mixed Material by tipper to site, laying inuniformlayerswithpaver/grader in sub-base / base course on well prepared surfaceand compacting with vibratory roller to achieve the desired density.

code15 - 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/m2 using mechanical means.

code16 - Providing and applying tack coat with RSI Bituminous Emulsion using emulsion pressure distributor at the rate of 0.25 kg/m2 on the prepared bituminous surface cleaned with mechanical broom Tack coat on Granular surface treated with primer

code17 - Providing and laving 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.

code18 - Providing and laying Bituminous Concrete with 120 TPH capacity hot mix plant batch type using crushed aggregates of specified grading, premixed with bituminous binder VO-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.

code19 - Removal of unserviceable soil with disposal upto a suitable distance as directed by the Engineer incharge of work, for

code20 - Conducting Topographical GIS survey for the proposed Water Supply/UGD scheme to the city/town with latest total station survey equipments. The work shall include collection of fheid data from local body, conducting detailed survey showing the all important land marks, existing water supply lines, sewer lines, all roads, levels, nature of roads, L-section survey for transmission main/feeders/sub-feeder/rising main from Jack well to WTP and WTP to OHTS and distribution network inlcuding clearing the obstructions, with all survey staff required covering all the developed and newly developed layouts or L-section survey for Sub-Main/Mains/Trunk Sewer/Rising main from wetwell to STP inlcuding clearing the obstructions, with all survey staff required covering all the developed and newly developed layouts with submission of Soft copy of drawings along with source file and Hard Copy in 3 sets for the following