Civil work for well ground water recharge system at CSIR-NEERI, Nagpur.

Amount

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction Engineer - in - charge.

Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Demolishing stone rubble masonry manually/ by mechanical means including stacking of serviceable material and disposal of unserviceable material within 50 metres lead as per direction of Engineer-in-charge :

Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-incharge.

All kinds of soil

Excavating trenches of required width for pipes, cables, etc includingexcavation for sockets, and dressing of sides, ramming of bottoms, depth upto 1.5 m, including getting out the excavated soil, and then returning the soil as required, in layers not exceeding 20 cm in depth, including consolidating each deposited layer by ramming, watering, etc. and disposing of surplus excavated soil as directed, within a lead of 50 m.

All kinds of soil

Pipes, cables etc. exceeding 80 mm dia. But not exceeding 300 mm dia

Providing and laying in position cement concrete of specified grade including the cost of centering and shuttering - All work up to plinth level :

1:3:6 (1 Cement : 3 coarse sand (zone-III) derived from naturalsources : 6 graded stone aggregate 20 mm nominal size derived from natural sources)

Brick work withF.P.S bricks of class designation 75 in foundation and plinth in:

Cement mortar 1:4 (1 cement:4 coarse sand)

12 mm cement plaster of mix :

1:4 (1 cement: 4 coarse sand)

Steel work welded in built up sections/ framed work, including cutting,hoisting, fixing in position and applying a priming coat of approved steel primer using structural steel etc. as required.

In stringers, treads, landings etc. of stair cases, including use of chequered plate wherever required, all complete

In gratings, frames, guard bar, ladder, railings, brackets, gates and similar works kg 142.30

Painting with synthetic enamel paint of approved brand and manufacture to give an even shade :

Two or more coats on new work

Making connection of drain with existing well including breaking into and making good the walls, floors with cement concrete 1:2:4 mix (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) cement plastered on both sides with cement mortar 1:3 (1 cement : 3 coarse sand), finished with a floating coat of neat cement and making necessary channels for the drain etc. complete :

For pipes 100 to 250 mm diameter

Providing and laying PVC (SWR type 'A',working pressure 6 Kgf per sq cm ) Single socketed pipes conforming to IS: 13592 including all fittings like Tee, Bend, clips/clamps etc.conforming to IS: 14735 jointing with seal ring/ solvent cement and testing of joints complete, conforming to IS: 5382 leaving gap for thermal expansion of make Supreme, Kissan classic/ Prince as approved by the Engineer in charge.

150 mm diameter

Supplying and laying at site stone agreegate etc. complete as per the instruction of the Engineer in charge. (actual size of excavated pit to be filled with agreegate will be measured for payment)

63 mm to 40 mm size stone aggregate

25 mm size stone aggregate

Random rubble masonry with hard stone in foundation and plinth including levelling up with cement concrete 1:6:12 (1 cement : 6 coarse sand : 12 graded stone aggregate 20 mm nominal size) upto plinth level with : Existing hard stone available at site are to be used.

Cement mortar 1:6 (1 cement : 6 coarse sand)

Supply of labours as per the wages not less than the latest wages for the employee in construction or maintenance of roads or in building operation as per latest governemnt notification published by office or the regional labour commissioner (Central) including all taxes and contractor profit etc. Complete.

Unskilled labour

N H CONSTRUCTION COMPANY