arc for daily patrolling of water supply pipeline wihin a radius of 35 km from kcc with the help of a helper and plumber pipe fitter during 2020-2021 , reinforced cement concrete work in rafts , footing , bases of columns etc and mass concrete excluding cost of centering , shuttering and reinforcement all w , reinforcement for r . c . c . work including straightening , cutting , bending , placing in position and binding all complete . cold twisted bars , centering and shuttering including strutting , propping etc . and removal of form for : foundations , footings , bases of columns , etc . for mass concrete . , deployment of jcb for removing silt or handling of earth , daily patrolling & maintenance of water supply pipe line within a radius of 35 kilometer from kcc with the help one plumber pipe fitter and one helper as per the direction of engineer in charge , laying of old/newms/ci/gi pipe lines o all classes with welded flanged sockets joints including fabrication of bend , flanges expansion joints etc . connected with the laying o pipe line at all heights ) pipe 5 to 8 n . b size , earth work in excavation by mechanical means ( hydraulic excavator ) / manual means in foundation trenches or drains ( not exceeding 1 . 5 m in width or 10 sqm on plan ) including dressing of sides and ramming of bottoms , lift up , 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 : 4 graded stone aggregate 20 mm nominal size ) , 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 20mm nominal size ) at plinth level with :cement mortar 1:6 ( 1 , hire charges of electrical generator 1 kva , welding m/c , welder for welding over water supply pipeline , for full day including diesel charges and welding rod