Repairing of potholes work damaged portion of public road from railway siding 9 and 10 level crossing to jindal underpass at Balram OCP under Hingula Area.

Item Description/ Heading

Excavation in Soil using Hydraulic Excavator and Tippers with disposal upto 1000 metres. (Excavation for roadwork in soil with hydraulic excavator including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross sections, and transporting to the embankment location with all lifts and lead upto 1000m as per relevant clauses of section - 300 of specifications)

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 at OMC with rotavator and compacting with vibratory rollers of 80 to 100 kN static weight to achieve the desired density, complete as per Clause 401 of Specification. 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 at OMC with rotavator and compacting with vibratory rollers of 80 to 100 kN static weight to achieve the desired density, complete as per Clause 401 of Specification. for grading- III Material

Water Bound Macadam Providing, laying, spreading and compacting stone aggregates of specific sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming requisite type of screening/ binding Materials to fill up the interstices of coarse aggregate, watering and compacting to the required density as per clause 404 of specification. By Mechanical Means: Grading- I (63 to 45 mm) Using Screening Type-A (13.2mm Agg.)

Prime coat Providing and applying primer coat with bitumen emulsion on prepared surface of granular Base including clearing of road surface and spraying primer at the rate of 0.70 kg/sqm using mechanical means as per clause 502 of specifications.

Dense Graded Bituminous Macadam Providing and laying dense bituminous macadam using crushed aggregates of specified grading, premixed with bituminous binder @ 4.0 to 4.5% by weight of total mix and filler, transporting the hot mix to work site, laying with a hydrostatic paver finisher with sensor control to the required grade, level and alignment, rolling with smooth wheeled, vibratory and tandem rollers to achieve the desired compaction as per clause 505 of specification complete in all respects. Using Batch Mix Plant of appropriate capacity and Paver finisher Hydraustatic with Sensor. for Grading II (19 mm nominal size)

Tack coat Providing and applying tack coat with bitumen emulsion using emulsion pressure distributor at the rate of 0.2 kg per sqm on the prepared bituminous/granular surface cleaned with mechanical broom and as per relevant clauses of section-503 of specifications.

Providing, laying and rolling of 20 mm thick Mix Seal Surfacing Type -A composed of crusher broken hard granite stone chips of sizes 11.2 mm to 0.09 mm @ 0.27 cum and specified grade bitumen (VG-30) @ 22 Kg per 10 sqm of road surface laid to the required line, grade and level to serve as wearing course on a previously prepared base, including mixing in hot mix plant, laying by paver finisher and rolling with smooth wheeled roller 8-10 tonne capacity as per MoRT&H specifications clause 512 in all respects.

Total impact of GST plus Labour Cess [@ 1 % (BOCW Cess to be deducted from the RA bill as per the value of the work progress)] for the purpose of CTC

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