Construction of Primary Health Centre at Namthang under Namchi District

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 upto 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. All kinds of soil.

Providing and laying hand packed stone soling in buildings works with clean hard selected stones, all complete. (Manual means)

1:3:6 (1 Cement : 3 coarse sand (zone-III) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources)

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

Providing and laying. coarse Rubble Stone Masonry with hammer dressed clean hard selected stone in 1:3:6c.c. (1 cement, 3 sand, 8 clean hard graded stone ships of size 40mm) including bond stone, through stone of size 150mm x 150mm x 450mm manufactured in 1:4:8 (1cement, 4 clean coarse sand, 8 clean hard stone aggregate of size 40 mm and down) and curing etc, complete as per the direction of Engineer in Charge excluding the cost of carriage of materials.

Providing and laying damp-proof course 40mm thick with cement concrete 1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 12.5mm nominal size derived from natural sources)

Providing and laying in position machine batched and machine mixed design mix M-25 grade cement concrete for reinforced cement concrete work, using cement content as per approved design mix, including pumping of concrete to site of laying but excluding the cost of centering, shuttering, finishing and reinforcement, including 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 Engineer-in-charge.(Note :- Cement content considered in this item is @ 330 kg/cum. Excess/ less cement used as per design mix is payable/recoverable separately).

Supplying, bending and placing in position tor steel reinforcement in all R.C.C works including cost of binding wires, all complete.

Providing, fixing & removing form work for casting R.C.C items as indicated below: with locally available timber)Foundation base