Repair and maintenance water pipeline leakage nearby Bachhawat Block in SDC, University of Delhi

Excavating trenches of required width for pipes, cables, etc including excavation for sockets, and dressing of sides, by mechinical / manual means ramming of bottoms, for all depth, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20 cm in depth, including consolidating each deposited layer by ramming, watering, etc. and disposing of surplus excavated soil as directed, within a lead of 50 m:All kinds of soilPipes, cables etc, not exceeding 80 mm dia. But not exceeding 300mm dia

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level :1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

Extra for scrapping, cleaning and straightening reinforcement from R.C.C. or R.B. work.

Dismantling of C.I. sluice valve including stacking of useful materials within a lead of 50 metresUp to 150 mm diameter

Providing and laying S&S C.I. standard specials such as tees, bends, collars, tapers, caps etc. (Heavy class):Up to 300 mm dia

Providing and laying S&S centrifugally cast (spun) iron pipes (Class LA) conforming to IS - 1536 :150 mm dia pipe

Providing lead caulked joints to spun iron or C.I. pipes and specials, including testing of joints but excluding the cost of pig lead :150 mm diameter pipe

Providing and fixing C.I. sluice valves (with cap) complete with bolts, nuts, rubber insertions etc. (the tail pieces if required will be paid separately) :150 mm diameterClass I

Constructing masonry Chamber 90x90x100 cm inside, in brick work in cement mortar 1:4 (1 cement : 4 coarse sand) for sluice valve, with CL surface box 100 mm top diameter, 160 mm bottom diameter and 180 mm deep (inside) with chained lid and RCC top slab 1:1.5:3 mix (1 cement : 1.5 coarse sand : 3 graded stone aggregate 20 mm nominal size ), i/c necessary excavation, foundation concrete 1:5:10 (1 cement : 5 fine sand : 10 graded stone aggregate 40 mm nominal size) and inside plastering with cement mortar 1:3 (1 cement : 3 coarse sand) 12 mm thick, finished with a floating coat of neat cement complete as per standard design . With common burnt clay F.P.S.(non modular) bricks of class designation 7.5

Dismantling old C.I. pipes including excavation and refilling trenches after taking out the pipes, breaking lead caulked joints, melting of lead and making into blocks, including stacking of pipes at site lead up to 50 metre:150 mm diameter C.I. pipe