Public Works Department Tender

B) Grading - II (Using Screening Type B (11.2 mm agg.)

Providing, laying and rolling of open graded premix surfacing of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates either using penetration grade bitumen or cut-back 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 smooth wheeled roller 8-10 tonne capacity, finished to required level and grades by Manual means, i/c 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. i/c Providing and applying tack coat with bitumen emulsion using emulsion pressure districutor at the rate of 0.25 kg per sqm on the prepared bituminous surface cleaned with mechanical broom. i/c 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.

Supplying, fitting and placing un-coated HYSD bar reinforcement complete as per drawing and technical specification.

Reinforced cement concrete M20 mix with stone aggt. 20mm nominal size mechanically mixed and vibrated for bed plates excluding steel reinforcement but i/c centering and shuttering laid in position.