Special repair work on the Bihra Harpur link road

Providing, laying, spreading and compacting stone aggregate of specific size 22-4-53mm to water bound macadum specification including spreading in uniform thickness hand packing Rolling with smooth wheel roller 80-100 kn in stages to proper grade and camber applying and brooming stone screening to fill up the interstices of coarse aggregate watering and compating to the required density Grading 3 as per Technical Specification Clause 405 of MORD data book.Compacted thickness 7.50 cm.

Providing and applying primer coat with bitumen mulsion (SS-1) on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.70-1.0 kg/sqm using mechanical means as per technical Specification Clause 502

Providing and applying Tack coat with bitumen (V.G.-10) using pressure distributor at the rate of 3.0kg per 10 sqm. Area on the prepared bituminous/ granular surface cleaned with mechanical broom compelte as per Clause 503 of MORD specification no. 5.

Providing, laying and rolling of open graded premix carpet of 20 mm thickness over a tack coat with approved grit 13.2 mm to 5.6 mm aggregates either using penetration grade bitumen (V.G.-10) to required line, grade and level to serve as wearing coarse on a previously prepared base, including mixing in a suitable plant laying and rolling with a three wheel 80-100 kn static roller capacity finished to required level and grates to be followed by seal coat of either Type C as per Technical Specification Clause 508.

Providing and laying seal coat sealing the voids in a bitumenus surface laid to the specified levels grade and cross fall using Seal coat (Type "C") with approved 6-7mm. Graded grit and bitumen (V.G.-10) as per Technical Specification Clause 510.

Construction of subgrade and earthen shoulders with approved material obtained from borrow pits with all lifts and leads, transporting to site, spreading, grading to required slope and compacted to meet requirement of Table 300.2 with lead upto 1000 m as per Technical Specification Clause 303.1

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