Periodical maintenance of Sainthal Prain road (VR-0033) (Village road) under Annual Maintenance Plan 2021-22 (Substituted)

Amount

Providing, laying, spreading and rolling of built-up spray grout layer using bitumen VG-10 over prepared base by manual means consisting of a two layer composite construction of 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 75mm (Seventy five millimetre) as per Technical Specification clause 505, complete in all respect including haulage of material in all leads and lifts by all modes of transportation and as per the entire satisfaction and direction of Engineer-in-Charge.

Providing and applying tack coat with bitumen emulsion confirming to IS:8887 (RS-1) using emulsion pressure distributor including preparing the surface and cleaning with mechnical broom on bituminous surface @ 0.250 kg/sqm (at the rate of zero point two five zero kilogramme per square metre) as per technical specification clause 503, complete in all respect including haulage of material in all leads and lifts by all modes of transportation and as per the entire satisfaction and direction of Engineer-in-Charge.

Providing, laying and rolling by manual means of open graded premix carpet of 20mm (twenty millimetre) thickness composed of 13.2mm to 5.6mm (thirteen point two millimetre to five point six millimetre) aggregates either using penetration grade bitumen VG-10 (ten) @ 1.46 kg. (one point four six kilogram) per square metre to required line, grade and level to serve as wearing couase on a previously prepared base, including mixing in suitable plant, laying and rolling with a three wheel 80-100 kN (eighty-hundred kilo newton) static roller capacity, finish to requried level and grades to be followed by seal coat of Type-B as per technical sepcification Clause 508 including all corrective measures such as patching pot holes, sealing of cracks including all profile correction for all depths and hauling of material in all leads and lifts by all modes of transportation.

Providing and laying seal coat Type-B by manual means sealing the voids in a bituminous surface laid to the sepcified levels, grade and crossfall using Bitumen VG-10 (ten) as per technical specificaiton Clause 510 including hauling of material in all leads and lifts by all modes of transportation.

Sunil Kumar