Establishment of New Fire Station at Deomali, Tirap District

SH : I : EARTH WORK.

Surface dressing of the ground including removing vegitation and in equalities not exceeding 15 cm depth and disposal of rubbies lead upto 50m and lift upto 1.50m.

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 30 cm size, saturated soil and rock), 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 soil as directed within a lead of 50m.

Providing and injecting chemical emulsion for pre-construction antitermite treatment and errecting chemical borrier under floor and all round the columns, pillars, walls, trenches, bank not excavation top surface of plinth junction of wall and floor among the external perimetre of building expansion joints, surrounding of pipe and conducts etc. complete.

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

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

SH :- II : CEMENT CONCRETE WORK.:-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 : 2 : 4 (1 cement : 2 coarse sand : 4 stone aggregate 20 mm nominal size) excluding the cost of centring and shuttering in : a) Foundations and plinth

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

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