M/O various schemes under NA-II in Rohini Zone.

Construction of dry lean cement concrete sub base over a prepared sub-grade with coarse and fine aggregate conforming to IS:383, the size of coarse aggregate not exceeding 25 mm, aggregate cement ratio not to exceed 15:1, aggregate gradation after blending to be as per specifications, cement content not to be less than 150 Kg/cum, optimum moisture content to be determined during trial length construction, concrete strength not to be less than 10 Mpa at 7 days, mixed in a batching plant, transported to site, for all leads & lifts, laid with a mechanical paver, compacting with 8-10 tonne vibratory roller, finishing and curing etc. complete as per direction of Engineer in- charge

Providing and laying design mix cement concrete of M-30 grade, in roads/ taxi tracks/ runways, using cement content as per design mix, using coarse sand and graded stone aggregate of 40 mm nominal size in appropriate proportions as per approved & specified design criteria, providing dowel bars with sleeve/ tie bars wherever required, laying at site, spreading and compacting mechanically by using needle and surface vibrators, levelling to required slope/ camber, finishing with required texture, including steel form work with sturdy M.S. channel sections, curing, making provision for contraction/ expansion, construction & longitudinal joints (10 mm wide x 50 mm deep) by groove cutting machine, providing and filling joints with approved joint filler and sealants, complete all as per direction of Engineer-in-charge (Item of joint fillers, sealants, dowel bars with sleeve/ tie bars to be paid separately). Cement content considered in M-30 is @ 340 Kg/cum. Nothing extra will be paid if extra cement is used. The contractor shall have discretion to either redesign the mix or bear the extra cost of cement. Note: Cement content considered in M-30 is @ 340 kg/cum. Less cement used as per design mix is recoverable separately. In case the cement content in design mix is more than the specified minimum cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement. Cement concrete manufactured in automatic batching plant (RMC plant) i/c transportation to site in transit mixer.

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. a) Mild Steel and medium tensile steel bars

b)Thermo-Mechanically Treated bars of grade Fe-500D or more.

Providing and fixing pre-moulded joint filler in expansion joints of RCC roads / CC pavements after making the joints dust free with high pressure air jet cleaners, all complete as per direction of the Engineer-in-Charge. (Pre-moulded joint fillers shall be made of bitumen hot sealing compound impregnated fibre board having impregnation more than 35%, conforming to IS:1838 for fibre board and IS: 1834 for hot sealing bitumen compound grade A.

Providing & laying in position separation membrance of impermeable plastic sheeting 125 micron thick as per direction of Engineer-in-charge.

G.S.T. Correction factor @ 0.973 (Rs) ₹ 1,61,45,831.33

Add Cost Index @ 4.03% =₹ 6,50,677.00