Construction of Type II Teachers qtrs at GHSS Nafra.

Excavation in Hill Area in Soil by Mechanical Means (Excavation in soil in hilly area by mechanical means including cutting and trimming of side slopes and disposing of excavated earth with all lifts and lead upto 1000 metres)

Excavation in Hilly Area in Ordinary Rock by Mechanical Means not Requiring blasting. (Excavation in hilly area in ordinary rock not requiring blasting by mechanical means including cutting and trimming of slopes and disposal of cut materials with all lift and lead upto 1000 metres).

Earth work in excavation in foundation and trenches in soils containing 50% or more of shingle or small size boulders upto 30 cm size, lift upto 1.50 m and stacking the excavated soil not more than 3 m clear from the edge of the excavation and returning the stacked soil in 15 cm layers when required, into plinth, sides of foundation etc consolidating each deposited layer by ramming and watering and then disposing of all surplus excavated soil as directed within a lead of 50m.

Re-filling excavated earth in foundations and plinth etc. in 15 cm layer including famming and watering etc. complete

Filling in plinth with sand under floors including watering, ramming, consolidating and dressing complete

Providing and laying in foundations and plinth cement concrete 1 : 4 : 8 (1 cement : 4 coarse sand : 8 graded stone aggregate 40 mm nominal size) excluding the cost of centring and shuttering.

Providing and laying cement concrete 1: 3 : 6 (1 cement: 3 coarse sand : 6 graded stone aggregate 20mm nominal size) excluding cost of centering and shuttering in a) foundation and plinth