tender for 87/24-25 karippassery round road maintenance ward- 10 retaring - annual plan- pkdv/87/karippaseery round road punarudharanam in ward 10.-121/2024-general civil work sl. no. item description 1 retarring 2 75.5.5.a.1pb:modified penetration macadam 50 mm thick using bitumen s-65 - packed bitumen rates
construction of penetration macadam over prepared base by providing a layer of compacted crushed coarse aggregate using chips spreader with alternate applications of bituminous binder and key aggregates and rolling with a three wheel 80-100 kn static roller to achieve the desired degree of compaction as per technical specification clause 506. 3 75.5.2.1pb:tack coat - with packed bitumen rates
providing and applying tack coat with bitumen emulsion (rs-1) using emulsion distributor at the rate of 0.20 to 0.25 kg per sqm on the prepared bituminous surface cleaned with hydraulic broom as per technical specification clause 503. 4 75.5.9.2.2.pa:plastic roads - bitumen s-65
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 (with 7% of bitumen replaced by shredded waste plastic)
case - i by manual means
(ii) bitumen (s-65) (vg - 30) 5 75.5.12.a.3.2pb:seal coat - manual means - type c - bitumen s-65 - packed bitumen rates
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
a. by manual means
case iii : type c
(ii) bitumen (s-65)