tender for providing and applying tack coat with bitumen emulsion (rs-1) using emulsion distributor at the rate of 0.25 to 0.30 kg per 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 bituminous (penetration grade /modified bitumen) binder 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. case - i by mechanical means bitumen (vg-10) , 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. by manual means case - i : type a bitumen (vg-10)