Providing and laying sewer line from Castro Cafe to Ghaffar Manzil Road, Jamia Millia Islamia.

EARTH WORK

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, for all lift, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m._All kinds of soil.

Excavating trenches of required width for pipes, cables, etc including excavation for sockets, and dressing of sides, by mechinical / manual means ramming of bottoms, for all depth, 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, not exceeding 80 mm dia. But not exceeding 300mm dia

Pipes, cables etc. exceeding 300 mm dia but not exceed ng 600 mm

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 uo to 50 m and for all lift.

CEMENT CONCRETE (CAST IN SITU)

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

1:5:10 (1 cement : 5 coarse sand (zone-III) derived from natural sources : 10 graded stone aggregate 40 mm nominal size derived from natural sources)

DRAINAGE

Providing and laying non-pressure NP2 class (light duty) R.C.C. pipes with collars jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 fine sand) including testing of joints etc. complete :

300 mm dia. R.C.C. pipe

450 mm dia. R.C.C. pipe

Constructing brick masonry manhole in cement mortar 1:4 ( 1 cement : 4 coarse sand ) with R.C.C. top slab with 1:1.5:3 mix (1 cement : 1.5 coarse sand (zone-III) : 3 graded stone aggregate 20 mm nominal size), foundation concrete 1:4:8 mix (1 cement : 4 coarse sand (zone-III) : 8 graded stone aggregate 40 mm nominal size), inside plastering 12 mm thick with cement mortar 1:3 (1 cement : 3 coarse sand) finished with floating coat of neat cement and making channels in cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size) finished with a floating coat of neat cement complete as per standard design :

Inside size 120x90 cm and 90 cm deep including C.I. cover with frame (medium duty) 5OO mm internal diameter, total weight of cover and frame to be not less than 116 kg (weight of cover 58 kg and weight of frame 58 kg) :

With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Constructing brick masonry circular manhole 1.22 m internal dia at bottom and 0 56 rod's at top in cement mortar 1:4(1 cement :4 coarse sand) inside cement piaster 12 mm thick with cement mortar 1:3 (1 cement : 3 coarse sand) finished with a floating coat of neat cement foundation concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size) and making necessary channel in cement concrete 1:2:4 (1 cement :2 coarse sand : 4 graded stone aggregate 20 mm nominal size) finished with a floating coat of neat cement, all complete as per standard design :

1.68 m deep with SFRC Cover and frame (heavy duty HD-20 grade designation) 560 mm internal diameter conforming to I.S. 12592, total weight of cover and frame to be not less than 182 kg. fixed in cement concrete 1:2:4 (1 cement : 2 coarse sand 4 graded stone aggregate 20 mm nominal size) including centering, shuttering all complete. (Excavation, foot rests and 12 mm thick cement piaster at the external surface shall be paid for separately) :

With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Extra depth for circular type manhole 1.52 m internal dia (at bottom) beyond 2.30 m :_With common burnt clay F.P.S. (non modular) bricks of class designation 7.5

Add for revised GST @18?% in place of 12% ie 6.33% on 576704

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