Annual maintenance by providing potholes filling and patchwork on various roads under provincial Division PWD BandR Branch Faridabad for the Year 2021-22 REINVITED

Amount

Providing, laying patchwork with stone aggregates of Grading - II laid to water bound macadam specifications after trimming the pot holes, removal of failed material, hand packing, applying and brooming requisite type of screening/binding materials to fill up the interstices of coarse aggregates, watering, and rolling with smooth wheeled roller 8 - 1 O tonne to match the adjoining surface complete as per technical clause 404 of MORT&H specifications. (HSR 17.53.2)

Providing, laying and rolling of built-up-spray grout layer over prepared base consisting of a two layer composite construction of compacted crushed coarse aggregates using motor grader for aggregates. key stone chips spreader may be used with application of bituminous binder after each layer, and with key aggregates placed on top of the second layer to serve as a Base conforming to the line, grades and cross-section specified, the compacted layer thickness being 75 mm including cost of tack coats (HSR 17.29)

Providing and laying patch work with close graded premix surfacing material of 20 mm thickness composed of crushed stone aggregates of specified grading premixed in a continous type of Hot Mix plant of appropriate capapcity not less than 75 tonne per hour, with bituminous binder VG-10@1,46 Kg per Sqm, laid with Paver Finisher Mechanical and rolling with a smooth wheeled roller 8-10 tonne capacity finished to required level and grade complete as per technical clause 510 of MORT&H specifications. (HSR 17.50.3)

Patch work Seal Coat Type B-Providing and laying of premix sand seal coat premixed in continuous type HMP of appropriate capacity not less than 75 tonnes/ hours using specified fine aggregates and penetration grade bitumen @0.68 kg/sqm laid to specified levels, grade and cross fall complete as per technical clause 511 of MORT&H specifications. (HSR 17.51)

Providing and applying tack coat with penetration grade bitumen VG-10 using bitumen pressure distributor at the rate of 0.30 Kg per Sqm on the prepared bituminous/ granular surface cleaned with mechanical broom as per technical clause 503 of MoRT&H specifications (Based on HSR 17.26.2)

Raghubir Singh