Bengaluru Water Supply And Sewerage Board Tender

No.4 - Supplying S&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 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. 300mm dia RCC

No.5 - Providing and installation of Class SN8 Double Wall Corrugated HDPE pipe outer wall corrugated and inner wall smooth piping system in accordance with IS 16098 part 2 and conveying to work site and lowering into trenches, laying true to line and level and perfect linking at joints with the help of two "O" rings and a coupler of suitable size, including loading and unloading at both destination and cutting of pipes where ever necessary including jointing with all labour, all lead and lift including encasing the pipe around to a depth of not less than 15 cm with screened soft soil available from the excavated soil. The testing commissioning including necessary hydraulic test to the required pressure as per ISS shall be done the contractor shall have to make his own arrangement for procuring water for testing etc., complete SN8 Double Wall Corrugated HDPE pipe sizes of 300 mm dia

No.6 - 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 230mmdia SW pipe

No.7 - 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 andfinished smooth. Fixing of pipes in CC 1:2:4 with graded metal of 20mm and down size. Supplying and fixing 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 whole works include watering, curing, barricading, danger lighting, pouring tar over MH frame and cover, cost of tar, shoring, strutting, de watering Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 1.0 M depth & SFRC cover & frame

No.8 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 1.1 M depth & SFRC cover & frame

No.9 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 1.2 M depth & SFRC cover & frame

No.10 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 1.3 M depth & SFRC cover & frame

No.11 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 1.4 M depth & SFRC cover & frame

No.12 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 1.5 M depth & SFRC cover & frame

No.13 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 1.6 M depth & SFRC cover & frame

No.14 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 1.7 M depth & SFRC cover & frame

No.15 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 1.8 M depth & SFRC cover & frame

No.16 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 1.9 M depth & SFRC cover & frame

No.17 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 2.0 M depth & SFRC cover & frame

No.18 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 2.1 M depth & SFRC cover & frame

No.19 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 2.2 M depth & SFRC cover & frame

No.20 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 2.3 M depth & SFRC cover & frame

No.21 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 2.4 M depth & SFRC cover & frame

No.22 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 2.5 M depth & SFRC cover & frame

No.23 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 2.6 M depth & SFRC cover & frame

No.24 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 2.7 M depth & SFRC cover & frame

No.25 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 2.8 M depth & SFRC cover & frame

No.26 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 2.9 M depth & SFRC cover & frame

No.27 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. ,3.0 M depth & SFRC cover & frame

No.28 - Constructing Brick Masonry Circular Machinehole 1.2 m internal dia. , 3.2 M depth & SFRC cover & frame

No.29 - 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

No.30 - Providing and laying in position Cement Concrete for levelling course for all works in foundation. The granite/trap/basalt crushed graded coarse aggregates and fine aggregates as per relevant IS Codes machine mixed, laid in layers not exceeding 150 mm thickness, well compacted using plate vibrators, including all lead & lifts, cost of all materials of quality, labour, Usage charges of machinery, curing, and all the other appurtenances required to complete the work as per technical specifications.Mix 1:3:6 Using 20 mm nominal size graded crushed coarse aggregates

No.31 - 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

No.32 - Disposal off the excess exavated earth of all types by vehicle including loading unloading with all leads and lifts labour HOM of amchineries etc fro 4 to 5 km