Repairing and Maintenance work over the damage surface in stretch of the approach road on the Pagliganj side of pagliganj Bridge on RHS of N.H. 512

Tack Coat:- Providing and applying tack coat with Cationic bitumen emulsion(RS1 ) complying with IS:8887 using emulsion pressure distributoron the prepared bituminous/granular/cement concrete pavement surface cleaned with mechanical broom and high pressure airjet (ReferencetoMORT&H'sspecification clause 503). i))On bituminous surface @ 0.20kg-0.3kg /sqm.

Repairing Pot-holes with Bituminous Macadam (Grading-II,for compacted thickness of upto 75mm):-Filling Pot Holes with Bituminous Macadam using Mobile Hot Mix plant (6-10 TPH) with approved crushed aggregates of specified grading premixed with bituminous binder @3.4% by wt. of the total mix, transported to site and laid in the pot hole prepared before hand by cutting the edges to get a firm vertical face and by removing all the failed and loose materials including dust and applying tack coat evenly on the sides and on the surface as per specification, rolling the filled depression with 8-10 tonne smooth wheeled roller to achieve the desired compaction, including the cost and carriage of stone aggregates and bitumen, hire charges of machinery and equipment, cost of fuel and lubricants and wages of all operational staff, quality control except the cost of tack coat complete as per direction of Engineer-in-charge. Payment to be made on the basis of the loose net volume of the stone aggregates used in the work.

Open Graded Premix Surfacing :- Providing,laying and rolling of open graded premix surfacing of 20mm thickness composed of 13.2mm to 5.6mm aggregates either using viscosity grade bitumen of approved grade to required line,grade and level to serve as wearing course on a previously prepared base,including mixingin a suitable plant,laying and rolling with a smooth wheeled tandem or other approved type roller8-10tonne capacity,finished to required level and grades (ReferencetoMORT&H'sspecification clause 510).Case-I: Mechanical method using approved grade Bitumen and HMP of appropriate capacity not lessthan 75 tonnes/hour .

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 and B seal coats (Reference to MORT&H's specification clause 511). Case - II : Type B Providing and laying of premix sand seal coat with HMP using approved crushed stone chipping and viscositygrade paving bitumen of suitable approved grade.

GST