Construction of School Building with Standard Designed G plus 1 at Govt Middle School, Seba with Boundary Wall under Bana Block, East Kameng District.

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

Re-filling excavated earth in foundations and plinth etc. In 15 cm layer including ramming and water 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 40mm nominal size) excluding the cost of centring and shuttering.

Providing and laying damp proof course 38mm thick with cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 stone aggregate 12.5 mm nominal size)

Extra for providing and mixing water proofing material in cement concrete work in the proportion recommended by manufacturers.

Applying a coat of hot bitumen (mashphalte 80/100 or equivalent) using 1.70 kg. per sqm. on damp proof course after cleaing the surface with brushes and finally with a piece of cloth lightly soaked in kerosene oil.