Civil Works

Providing and applying tack coat with Cationic bitumen emulsion (RS1) complying with IS:8887 using emulsion pressure distributor on the prepared bituminous/granular/cement concrete pavemen surface cleaned with mechanical broom and high pressure air jet (Reference to MORT&H's specification 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 13.2 mm to 5.6mm aggregates either using viscosity grade bitumen of approved grade to required line, gradeandlevel toserveaswearing course on a previously prepared base, including mixing in a suitable plant, laying and rolling with a smooth wheeled tandemor other approved type roller 8-10 tonne capacity, finishedtorequiredlevel andgrades(ReferencetoMORT&H's specification clause 51. (i) Case-I:Mechanical method using approvedgrade Bitumenand HMP of appropriate capacity not less than 75 tonnes/hour .

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 viscosity grade paving bitumen of suitable approved grade.

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