Construction of Septic Tank for Pre-fabricated Building at NHPC Complex, Pasighat

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.

Providing and laying 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 : 1.5 : 3 (1 cement : 1.50 coarse sand : 3 stone aggregate 20 mm nominal size) excluding the cost of centring and shuttering in a) Foundations and plinth.

Centring and shuttering including strutting propping etc. and removal of form work for: a) Foundations and plinth

Brick work with best available local bricks in foundation and plinth in cement mortar 1:3 (1 cement : 3 fine sand).

15 mm cement plaster 1 : 3 (1 cement : 3 fine sand) on the rough side of single or half brick wall.

Neat cement punning.

Reinforced cement concrete work in lintels, beams and bresumers up to floor two level including finishing and plastering the exposed surface with cement mortar 1 : 3 (1 cement : 3 fine sand) of thickness not exceeding 6 mm to give a smooth and even surface but excluding cost of centering, shuttering and reinforcement. a) M20 (1 cement : 1.5 coarse sand : 3 stone aggregate 20 mm nominal size).

Reinforced cement concrete in walls (any thickness) including attached pillasters, buttresses, plinth and string course, fillets etc from top of foundation up to floor two level including finishing and plastering the exposed surfaces with cement mortar 1 : 3 (1 cement : 3 fine sand) of thickness not exceeding 6 mm to give a smooth and even surface excluding cost of centring, shuttering and reinforcement in : a) M20 (1 cement : 1.5 coarse sand : 3 stone aggregate 20 mm nominal size).

Reinforcement of RCC work including bending, binding and placing in position complete. b) Tar/TMT steel