Restoration/Improvement of both side approach of existing RCC bridge on Chhawla Najafgar h road.

Earth work in surface excavation not exceeding 30 cm in depth but exceeding 1.5 m in width as well as 10 sqm on plan including getting out and disposal of excavated earth upto 50 m and lift up to 1.5 m, as directed by Engineer-in-Charge: All kinds of soil

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 up to 1.5 m, including getting out the excavated soil and disposal of surplus excavated soil as directed, within a lead of 50 m. 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 : 1:4:8 (1 Cement : 4 coarse sand (zone-III) derived from natural sources : 8 graded stone aggregate 40 mm nominal size derived from natural sources).

Providing and laying at or near ground level factory made kerb stone of M-25 grade cement concrete in position to the required line, level and curvature, jointed with cement mortar 1:3 (1 cement: 3 coarse sand), including making joints with or without grooves (thickness of joints except at sharp curve shall not to more than 5mm), including making drainage opening wherever required complete etc. as per direction of Engineer-in-charge (length of finished kerb edging shall be measured for payment). (Precast C.C. kerb stone shall be approved by Engineer-in-charge).

Construction of granular sub-base by providing close graded Material conforming to specifications, mixing in a mechanical mix plant at OMC, carriage of mixed material by tippers to work site, for all leads & lifts, spreading in uniform layers of specified thickness with motor grader on prepared surface and compacting with vibratory power roller to achieve the desired density, complete as per specifications and directions of Engineer-in-Charge. With material conforming to Grade-III(size range 26.5 mm to 0.075 mm) having CBR Value-20

Providing and laying in position ready mixed or site batched design mix cement concrete for plain cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana/Ordinary Portland/Portland Slag cement, admixtures in recommended proportions as per IS : 9103 to accelerate/ retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering and finishing as per direction of the Engineer-in-charge; for the following grades of concrete. Note : Extra cement upto 10% of the minimum specified cement content in design mix shall be payable separately. In case the cement content in design mix is more than 110% of the minimum specified cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement. All works up to plinth level: Concrete of M-10 grade with minimum cement content of 220 kg/cum.

Providing and laying RMC of M-30 grade by using minimum 400kg of cement(43 garde,OPC) per cum of concrete in roads/streets manufactured in automatic RMC plant using coarse sand and graded stone aggregate of 20mm nominal size in appropriate proportion as per approved design criteria including transportation to site in transit mixer, including cost of admixture in recommended proportion as per IS9103 to accelerate/retard setting of concrete to improve workability with out imparing strength and durability as per specification including spreading and compacting machenically by using needle and surface vibrators, levelling to required slope & camber, finishing by floating & brooming with wire brushes etc. and curing including making provision for contraction/expansion, construction of cross/longitudinal joints of size 10mm wide 50mm deep by groove cutting machine, providing and filing joints with approved joint filler and sealents, etc. complete, sa per direction of Engineer-in-charge. (Cost of joint filler & sealents shall be paid for seperately under relevant items) providing M-30 grade concrete BMC/RMC.