Construction of 50 seated Primary School Hostel (PSH) at UPS Dongasil, Kashipur Block

Earth work in stoney earth and gravels mixed with stone and boulder not exceeding 0.014 cum in volume within 50m initial lead and 1.5m initial lift including rough dressing and breaking clods to maximum 5cm to 7cm and laying in layer not exceeding 0.3m in depth and as per specification approved by the dept. i) Ordinary Soil

extra for every additional lift of 1.5 m or part there of in excavation/ banking excavated or stacked materials i) Ordinary Soil

Supplying & Filling foundation trenches , plinth & ditches with clean course river sand well watered and rammed in layers not exceeding 23 c.m. in depth with all lead and lift including cost, conveyance, loading, unloading, stacking,royalties and all taxes of sand,cost & conveyance of water, cost of all Labour,labour cess,T&P required for the work etc. complete in all respect as directed by the Engineer- in -charge.

Back filling available excavated earth (excluding rock) in trenches, plinth, sides of foundations etc. in layers not exceeding 20 cm in depth, consolidating each deposited layer by ramming and watering, lead upto 50 m and lift upto 1.5m.

Making plinth protection 150 mm thick of cement concrete 1:3:6 (1 cement: 3 coarse sand : 6 graded stone aggregate 20 mm nominal size) over 75mm thick bed of dry brick ballast 40 mm nominal size, well rammed and consolidated and grouted with fine sand, including finishing the top smooth

Supplying , diluting and and preparing chemical emulsion like CHLORPYRIPHOS or other chemicals approved by central Insecticides Board or as directed by the manufacturer and spraying the mixture uniformly by sprayer as pre-constructional anti termite treatment and creating a chemical barrier under and around wall trenches, basement excavation, top surface of plinth filling, junction of walls and floors along with external perimeter of the building, surrounding the pipes and conduits etc. complete at the rate of 7.5 litres ( or as directed by the manufacturer) per sqm on vertical and 5.0 liters per sqm on horizontal surfaces, 50% of the emulsion to be filled in the holes made in trenches at 150mm center to center etc. complete.as per IS:6313/1981 (PART-II) and as per the direction of engineer-in-charge including all cost of materials labour, taxes etc. all complete.

PLAIN & REINFORCEMENT CONCRETE Providing and laying P.C.C[1:4:8] using 4cm size metal etc in foundation and floors using cement , 40 mm size crusher broken H.G.Metal and screened and washed sharp river sand for mortar of approved quality and from approved quarry including hoisting ,lowering and laying concrete to the required level, ramming ,watering and curing etc

Providing and laying in position ready mixed M25 grade concrete having compressive strength at 28 days test not lessthan 250kg/sq.cm for reinforced cement concrete work using cement content as per approved design mix etc including Rigid & smooth centering and shuttering. a) For R.C.C foundation, footing bases of column, mass concrete, pre-cast etc.

b) For R.C.C plinth band etc.

c) R.C.C Beam & Column i) Ground Floor