Restoration of rain damages on Boaching Lapas Rulag road Km 0/00 to 8/00. (PDNA-2023)

Loosening of ground upto a level of 300mm below the subgrade level, watered graded and compacted in layers to meet requirement of Table 300.1 and 300.2 for subgrade construction as per technical Specifiaction clause 303.5.2. as per Technical Specification clause 405 complete within all leads, lifts, carriage of material and other incidentals charges complete in all respect as per direction of Engineer-in-Charge.

Providing, laying, spreading and compacting stone aggregates by mechanical means of 90mm to 45mm (Ninety millimetre to forty five millimetre) sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with three wheel 80-100 kN (eighty-one hundred kilo newton) static roller in stages to proper grade and camber, applying and brooming, stone screening/binding materials to fill-up the interstices of coarse aggregate, watering and compacting to the required density Grading-1 (one) as per Technical Specification clause 405 complete within all leads, lifts, carriage of material and other incidentals charges complete in all respect as per direction of Engineer-in-Charge.

Providing, laying, spreading and compacting stone aggregates by mechanical means of 63mm to 45mm (sixty three millimetre to forty five millimetre) sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheel roller 80-100 kN (eighty-hundred kilo newton) in stages to proper grade and camber applying and brooming, stone screening/binding materials to fillup the interstics of coarse aggregate, watering and compacting to the required density Grading-2 (two) as per Technical Specification clause 405 complete including carriage of material within all leads, lifts and other incidentals complete in all respect as per direction of Engineer-in-Charge.

Providing, laying, spreading and compacting stone aggregates by mechanical means of 53mm to 22.4mm (fifty three millimetre to twenty two point four millimetre) sizes to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with smooth wheel roller 80-100 kN (eighty-hundred kilo newton) in stages to proper grade and camber applying and brooming, stone screening/binding materials to fillup the interstics of coarse aggregate, watering and compacting to the required density Grading-3 (three) as per Technical Specification clause 405 complete within all leads, lifts, carriage of material and other incidentals charges complete in all respect as per direction of Engineer-in-Charge.

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 to 1.00 kg/sqm ( Zero point seven zero to one kilogramme per square metre) using mechanical means as per Technical specification Cluase 502 including carriage of material within all leads, lifts and other incidentals complete in all respect as per direction of Engineer-in-Charge.

Providing and applying tack coat with bitumen emulsion (RS-1) using emulsion distributor at the rate of 0.25 to 0.30kg/sqm (zero point two five to zero point three zero kilogramme per square metre) on the prepared granular surfaces treated with primer and cleaned with hydraulic broom as per technical specification clause 503 including carriage of material within all leads, lifts and other incidentals complete in all respect as per direction of Engineer-in-Charge.

Providing, laying and rolling by mechanical means with bitumen (VG-10) @ 1.46 kg/sqm (at the rate of one point four six kilogram per square metre) 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 to required line, grade and level to serve as wearing course 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, finished to requried level and grades to be followed by seal coat of Type-B as per Technical Sepcification Clause 506 including carriage of material within all leads, lifts and other incidentals complete in all respect as per direction of Engineer-in-Charge.

Providing and laying seal coat Type-B by mechanical means sealing the voids in a bituminous surface laid to the sepcified levels, grade and crossfall using Bitumen (VG-10/30) @ 0.68kg/sqm. (as the rate of zero point six eight kilogram per square metre) as per Technical Specificaiton Clause 508 including carriage of material within all leads, lifts and other incidentals complete in all respect as per direction of Engineer-in-Charge.

Construction of subgrade and earthen shoulders with approved material obtained from borrow pits with all lefts and leads, transporting to site, spreading, grading to required slope and compacted to meet requirement of Table 300.2 with lead upto 1000m as per Technical Specification Clause 303.1. as per Technical Specificaiton Clause 508 including carriage of material within all leads, lifts and other incidentals complete in all respect as per direction of Engineer-in-Charge.