Chennai Metropolitan Water Supply And Sewerage Board Tender

Supply of 250mm EDPM rubber gasket.

Cement concrete 1:2:4 using Crushed stone sand (Msand) and 12 to 20mm gauge hard broken stone jelly for plain concrete work including laying compacting curing, etc., complete.

Cutting of CI pipe

250mm dia pipe

Construction of RCC machinehole using sulphate resistant cement with M30 design mix concrete using Crushed stone sand (M sand) including earthwork excavation as per SS20B , providing point edge to well kerb using ISA 150x75x10mm weighing at 16.9kg/m,sinking well kerb below 2m from G.L.or by open excavation for various depth as per site condition with M30 mix for side wall, raft and roof slab,including cost of steel reinforcement ,including bailing and pumping out water, formwork, plugging the bottom with PCC 1:3:6 using 40mm hard broken granite jelly, laying plain cement concrete 1:3:6 using 12mm to 20mm hard broken granite jelly for fixing frame, fixing FRC machinehole cover and frame, providing CI steps, ,benching and channelling including refilling the trenches with excavated earth and disposal of earth etc. Including testing the machinehole with water for 48hours to check water tightness and rectifying the defects if any complete for the following size of machineholes

at 4.0 m depth

Providing Iron Barricading of size 2.50 m width and 1.75 m reflectors, fixing stickers etc, including watching during night and placing the barricading units as directed at the sites

Supplying, laying jointing and testing UPVC pipe including earthwork excavation for trenches in hard stiff clay, stiff black cotton, hard red earth, shales, murams, gravel, stoney earth and earth mixed with small size boulders and hard gravelly soil, depositing the earth on banks with initial lead of 10m. lowering the pipes into the trenches, aligning, refilling the trenches with excavated earth in layers of not more than 23cm thick watering, ramming to consolidation and disposal of surplus earth etc., complete

110mm dia upto a depth of 1.0m

Providing dummies in upstream & Down stream including labour and materials

Removing dummies in upstream & Down stream including labour and materials

Providing and laying, spreading and compacting graded stone aggregrats to Wet mix M20 grade (100mm thick) specification including pre mixing the materials with water at OMC in mechanical mix plant carriage of mixed material by tipper to site laying in uniform layers with pavers in Sub Base/Base corse on well prepared and compacting with vibratory roller to achive the desired density including cost of material, labour charges, rentals for machineary fuel and other incidential charges etc., complete as per clause of 406 of MORTH Rev 5

Cement concrete 1:3:6 using Crushed stone sand (Msand) and 12 to 20mm gauge hard broken stone jelly for plain cement concrete works including laying, compacting, curing, etc., complete.

Hire charges for submersible pumpsets (20 Hp)

For running hours

Disposal of surplus earth

Sub Total

GST @ 18%