BBCT/PMGSY/Maint./2019-20/01

Amount

Construction of sub-grade and earthen shoulders Construction of sub-grade and earthen shoulders with approved materials obtained from borrow pits with all lifts and leads, transporating to site, spreading, grading to required slope and compacting to meet required of Table 300.2 with lead upto 1000m as per technical specification clause. i) Private Land

Maintenance of WBM Road Maintenance of WBM road including filling up of pot holes, ruts and rectifying corrugated surface, damaged edges and levelling as per technical specification clause 1906.

Prime coat Low porosity.Providing and applying primer coat with bitumen emulsion (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 mechnical means as per Technical Specification Clause 502

Tack Coat. Providing and applying tack coat with Bitumen emulsion (RS-1) using emulsion distributor at the rate of 0.25 to 0.30 Kg/sqm on the prepared dry and hungry bituminous surface cleaned with Hydraulic broom as per Technical Specification Clause 503

20mm thick Open-Graded Premix Carpet using Bitumen Emulsion as per Technical Specification clause 508.2 'Providing, laying and rolling of open-graded premix carpet of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates either using penetration grade bitumen or emulsion to required line, grade and level to serve as wearing course 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 grades to be followed by seal coat of either Type A or Type B or Type C as per Technical Specification Clause 508. I)By Manual Means Bitumen (S-90)

Seal Coat Providing and laying seal coat sealing the voids in a bituminous surface laid to the specified levels, grade and cross fall using Type A, Type B and Type C as per Technical Specification Clause 510

BIRENDRA KUMAR PRASAD