Construction of Vety Sub-Centre at Laxmandhepa, Nalchar Block under Sepahijala District

Clearing jungle including uprooting of rank vegetation, grass, brush wood, trees and saplings of girth upto 30 cm measured at a height of 1 m above ground level and removal of rubbish upto a distance of 50 m outside the periphery of the area cleared.

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.

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.

Supplying and filling in plinth, under floor, foundations etc. with sand (fine) from local quarry with all lifts including spreading in horizontal layers, watering, grading to required slope, ramming, consolidating and compacting each layer by using plate compactor or by any suitable method complete.

Supplying chemical emulsion in sealed containers including delivery as specified. - Chlorpyriphos/Lindane emulsifiable concentrate of 20%

Diluting and injecting chemical emulsion for POST CONSTRUCTIONAL anti-termite treatment as per IS: 6313(Part III)- Latest revision (excluding the cost of chemical emulsion):Along the external wall below concrete or masonry apron using chemical emulsion @ 2.25 litres per linear metre including drilling and plugging holes etc. - With Chlorpyriphos/Lindane E.C. 20% with 1% concentration

Treatment of soil under plinth filling using chemical emulsion @ one litre per hole, 300 mm apart including drilling 12 mm diameter holes and plugging with sand filling: - With Chlorpyriphos/Lindane E.C. 20% with 1% concentration.

Providing and laying in position cement concrete of specified grade excluding the cost of centring and shuttering. All work upto plinth level: 1:2:4( 1 Cement:2 fine sand : 4 graded stone aggregate 20 mm nominal size

1:4:8( 1 Cement: 4 fine sand : 8 graded stone aggregate 40 mm nominal size) All kinds of soil

Providing and laying damp-proof course with cement concrete 1:2:4 (1 cement: 2 coarse sand : 4 graded stone aggregate 12.5mm/20mm nominal size). 1:1½:3 ( 1 Cement: 1½ fine sand : 3 graded stone aggregate 20 mm nominal size) All kinds of soil