Bengaluru Water Supply And Sewerage Board Tender

code04 - Providing, 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 commissoning 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 spigot 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 water for testing) with Rubber ring gasket joints. 230mm dia SW Line

code05 - 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 50m, and lift upto 1.50m, Including cost of all labour complete as per specifications .

code06 - 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 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, 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 whole works 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 Mtrs Depth & SFRC Cover & Frame

code07 - Above 1.00 Mtrs Depth MH's in terms of 0.10 Mtrs

code08 - 2.00 Mtrs Depth & SFRC Cover & Frame

code09 - Above 2.00 Mtrs depth MH's in terms of 0.10 Mtrs

code10 - 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 for 1.20 Mtrs dia. 1.00 Mtrs Depth

code11 - Constructing brick masonry chamber of internal dimension 600x600mm and depth of 600mm (inner dimensions) with modular bricks of CD 75 in cement mortar 1:6, bed concrete 150mm thick with 1:3:6, plastering 12 mm thick with cement mortar 1:4, CC 1:2:4 coping 75mm thk for fixing CI cover & frame etc. excluding the cost of CI frame

code12 - Providing & fixing RCC Pre-cast Cover Slab of size 0.8 m x 0.8 m x 0.15m of M25-Design mix concrete with 12 mm steel @ 120 mm c/c both ways, over Gate valve extension spindle with central opening along with lid for smooth operation with appurtenances., complete with all lead and lifts etc. complete

code13 - Dismantling of existing structures like culverts, bridges, retaining walls and other structure comprising of masonry, c.c. wood work, steel work, including T & P and scaffolding wherever necessary sorting the dismantled material, disposal of unserviceable and stacking the serviceable material with all lifts and lead , Prestressed / RCC Grade M -20 & ABove

code14 - Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specifications including premixing the Materials with water at OMC in Mechanical Mix Plant carriage of Mixed Materials by tipper to site, laying in Uniform layeras with Paver in Sub base / Base course on well prepared surface & compacting with Vibratory roller to achieve the desired density complete as per Specifications MORTH Specifications

code15 - Providing & laying in position cement concrete for levelling course for all works in foundation . The granite / trap / basalt crushed graded coarse aggregates & fine aggregates as per relevant IS Codes machine mixed, laid in layers not exceeding 150mm thickness, well compacted using plate vibrators, including all lead & lifts, cost of all materials if quality, labour, usage charge of machnery, curing & all the other appurtanances required to complete the work as per Technical specifications Mix 1:2:4 using 20mm Nominal size graded crushed coarse aggregates.

code16 - 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

code17 - Removal of Unserviceable Soil with disposal upto a distance as directed by the Engineer in Charge of work