Making approach and boom barrier at 17 no. Check post for passing coal trucks towards Gouri Deep OCM Railway siding under Sasti Expansion OCM under Sasti Sub Area

Amount

Construction of granular sub-base by providing well graded material like natural sand crushed gravel or crushed stone having CBR >30, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator or plant mix method at OMC, and compacting with vibratory rollers of 80 to 100 kN static weight to achieve the desired density, complete as per Clause 401 of Specification. (A) Plant Mix Method For Grading-I Material

Granular Sub-base with Well Graded Material (CBR>30 or more) (Table:- 400-1 & Table 400-2) Construction of granular sub-base by providing well graded material like natural sand crushed gravel or crushed stone having CBR >30, spreading in uniform layers with motor grader on prepared surface, mixing by mix in place method with rotavator or plant mix method at OMC, and compacting with vibratory rollers of 80 to 100 kN static weight to achieve the desired density, complete as per Clause 401 of Specification. (A). By Plant Mix Method For Grading-III Material

Water Bound Macadam. Providing laying spreading and compacting stone aggragate of specifc sizes to water bound macadam specifications including spreading in uniform thickness , hand packing, rolling with vibratory roller 8-10 T in stages to proper grade and camber , applying and brooming requisite type of screenings / binding materials to fill up the interstices of coarse aggregate watering and compacting to the required density as per clause 404 of specifications. ( B ) By mechanical means, Grading I ( 63 mm to 45 mm ) using type B screenings ( 13.2 mm ). ( Note : for one 1.00 cum of compacted thickness contractor have to supply following materials 63 mm to 45 mm aggregate = 1.21 cum screenings 13.20 mm = 0.24 cum stone dust = 0.08 cum ).

Providing laying spreading and compacting stone aggragate of specifc sizes to water bound macadam specifications including spreading in uniform thickness , hand packing, rolling with vibratory roller 8-10 T in stages to proper grade and camber , applying and brooming requisite type of screenings / binding materials to fill up the interstices of coarse aggregate watering and compacting to the required density as per clause 404 of specifications. ( A ) By mechanical means, Grading 11 ( 53 mm to 22.4 mm ) using type B screenings ( 11.2 mm ). ( Note : for one 1.00 cum of compacted thickness contractor have to supply following materials 53 mm to 22.4 mm aggregate = 1.21 cum screenings 11.20 mm = 0.24 cum stone dust = 0.08 cum)

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 table 600-1, 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, laid with a paver with electronic sensor, compacting with 8- 10 tonnes vibratory roller, finishing and curing as per clause 601 of specification complete in all respect.

Construction of un-reinforced, dowel jointed, plain cement concrete pavement M-30 grade concrete over a prepared sub base with cement , coarse and fine aggregate conforming to IS 383, maximum size of coarse aggregate not exceeding 25 mm, mixed in a batching and mixing plant as per approved mix design, transported to site, laid with a fixed form or slip form paver, spread, compacted and finished in a continuous operation including provision of contraction, expansion, construction and longitudinal joints, joint filler, separation membrane, sealant primer, joint sealant, debonding strip, admixtures as approved, curing compound, finishing to lines and grades as per drawing as per IRC 15 2011 and as per relevant clauses of section 602 of specifications complete but including cost of steel in dowel bar and tie rods etc.

Providing and laying in position specified grade of reinforced cement concrete excluding the cost of centring, shuttering, finishing and reinforcement - All work upto plinth level.1:1.5:3 ( 1 cement : 1.5 coarse sand : 3 graded stone aggregate 20 mm nominal size )

Reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete.Thermo-Mechanically Treated bars.

Centring and shuttering including strutting, propping etc. and removal of form for : walls of any thickness in Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc.

Painting with synthetic enamel paint of approved brand and manufacture of required colour to give an even shade :Two or more coats on new work over an under coat of suitable shade with ordinary paint of approved brand and manufacture.

Total impact of GST for the purpose of CTC

S. K. PANDEY

Omprakash Yadav