Patch repairing on Canal service road of Balua Dy.

Providing, laying, spreading and compacting stone aggregates of specific sizes (22.4mm to 53mm) obtained from approved querry Sukrut to water bound macadam specification including spreading in uniform thickness, hand packing, rolling with 3 wheeled steel/ vibratory roller 8-10 tonnes in stages to proper grade and camber, applying and brooming Type-‘B’ screening material to fill up the interstices of coarse aggregate, watering and compacting to the required density WBM-G3 as per Technical specifications clause 4.7/405 (3) including cost of all materials, labour & T&P etc. complete as per direction of Engineer in charge.

Providing and applying primer coat with bitumen emulsion (SS-2) on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 0.70 kg per sqm using mechanical means as per Technical Specification clause 502 including cost of all materials, labour & T&P etc. complete as per direction of Engineer in charge.

Providing and applying tack coat with Bitumen emulsion (VG-10) using bitumen distributor at the rate of 0.30 kg per sqm on the prepared bituminous surface cleaned with Hydraulic pressure as per Technical Specification clause 5.2/503(1).

Providing, Laying and rolling of open-graded premix carpet of 20 mm thickness composed of 13.2 mm to 11.2 mm Dalla grit in proportion of 2:1 either using Viscocity grade bitumen @ 1.46 kg per sqm to to required line, grade and level to serve as wearing course on a previously prepared base, including mixing in a suitable plant, laying & rolling with a smooth wheeled roller 80-100 kN static roller capacity , finished to the required level and grades to be followed by seal coat type-C as per Technical Specification clause 508/5.9(i)

Providing and laying of premix sand seal coat Type-‘B’ with HMP of appropriate capacity not less than 200 Tonnes/hour using crushed stone chipping 6.7 mm size and penetration bitumen of suitable grade as per Technical specification 511 including cost of all materials, labour & T&P etc. complete as per direction of Engineer in charge.