Revival of Lakthang irrigation canal including O and M period of 03 years

All Kind of soil

Ordinary Rock

Hard Rock (R.B)

Random rubble masonry with hard stone in foundation and plinth including levelling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20 mm nominal size) upto plinth level with : Cement mortar 1:6 (1 cement : 6 coarse sand)

Centring and shuttering including strutting propping etc,and removal of form work for Walls (any thickness) incld. attached pilasters, buttresses, plinth & string courses etc.

CEMENT PLASTER (IN FINE SAND) 20 mm cement plaster 1:4 (1 cement : 4 fine sand)

Dumping stone on horizontal level excluding cost of stone

Providing and laying in position ready mixed plain cement concrete, using fly ash and cement content as per approved design mix and manufactured in fully automatic batching plant and transported to site of work in transit mixer for all leads, having continuous agitated mixer, manufactured as per mix design of specified grade for plain cement concrete work, including pumping of R.M.C. from transit mixer to site of laying and curing, excluding the cost of centering, shuttering and finishing, including cost of curing, admixtures in recommended proportions as per IS : 9103 to accelerate/ retard setting of concrete, improve workability without impairing strength and durability as per direction of the Engineer-in-charge. Note : (1) Excess/less cement used than specified in this item is payable/ recoverable separately. (2) Fly ash conforming to grade I of IS 3812 (Part-1) only be used as part replacement of OPC as per IS : 456. Uniform blending with cement is to be ensured in accordance with clauses 5.2 and 5.2.1 of IS: 456 -2000 in the items of BMC and RMC. All works upto plinth level: Concrete of M20 grade with minimum cement content of 270 kg /cum

Curing canal lining for 28 days in beds