Construction of Compost pit at Old Area Complex of Safdarjung Airport, New Delhi

Amount

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.

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

1:2:4 (1 cement : 2 coarse sand (zone-III) derived from natural sources : 4 graded stone aggregate 20 mm nominal size derived from natural sources)

1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources)

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 7.5 in foundation and plinth in:

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

Making plinth protection 50mm thick of cement concrete 1:3:6 (1 cement : 3 coarse sand (zone-III) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources) over 75mm thick bed of dry brick ballast 40 mm nominal size, well rammed and consolidated and grouted with fine sand, including necessary excavation, levelling & dressing & finishing the top smooth.

12 mm cement plaster of mix :

1:6 (1 cement: 6 coarse sand)

15 mm cement plaster on rough side of single or half brick wall of mix:

1:6 (1 cement: 6 coarse sand)

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

Supply of suitable Microbial culture with microbial/bacterial count of (10^10) CFU/Ltrs for rapid composting at site complete as per satisfaction of Engineer in charge.

Providing and laying tile Bricks common burnt clay F.P.S. (non modular) tile bricks of class designation 10 over consolidated bed of sand filling, etc.all complete as per the direction of Engineer-in-charge. (Note:- Sand filling shall be paid for separately).

kailash chawla