Repairing of patch pot holes and premix surfacing of colony roads along periphery road from NEEPCO Guest House Gate to Annex IB VKV School road from Chariali near Pooja mandop to NEEPCO Hospital Gate and from Triangle of E Type colony

Amount

Filling pot holes and patch repairs with open – graded premix surfacing, 20 mm.(Removal of all failed material, trimming of completed excavation to provide firm vertical faces, cleaning of surface, painting of tack coat of bitumen emulsion on the sides and base of excavation as per clause 503, back filling the pot holes with hot bituminous material with paving bitumen 60/70 as per clause 511, compacting, trimming and finishing the surface to form a smooth continuous surface, all as per clause 3004.2. (i)Using Bitumen emulsion CSS-1h as Tack coat.

Prime coat (Providing and laying primer coat with bitumen emulsion on prepared surface of granular base including cleaning of road surface and spraying primer at the rate of 1.00 Kg/Sqm using mechanical means) (Including cost of testing of materials at site and Laboratory as directed by the Department).(i)With bitumen emulsion – CSS-1h.

Open – Graded Premix Surfacing (Providing, laying and rolling of open-graded premix surfacing of 20 mm thickness composed of 13.2 mm to 5.6 mm aggregates either using penetration grade bitumen to required line, grade and level to serve as wearing course on previously prepared base, including mixing in a suitable plant laying and rolling with a smooth wheeled roller 8 – 10 T capacity to the reqd. level and grade. (including carriage of mixed materials up to 10.00 KM initial lead from mixing plant) (including cost of testing of materials at site and Laboratory as directed by the Deptt) (A)Without anti stripping agent. (i)Mechanical method using penetration grade Bitumen (60/70 or VG -30) and HMP of appropriate capacity not less than 75 tonnes/hour.

Providing and laying tack coat with bitumen emulsion using emulsion pressure distributor at the rate of 0.20 Kg per Sqm on the prepared bituminous/granular surface cleaned with mechanical broom. (Including cost of testing of materials at site and Laboratory as directed by the Deptt.) (I)With Bitumen emulsion CSS-1h (a)Normal bituminous surface.

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) (Including cost of testing of materials at site or Laboratory as directed by the Deptt.) (A)Without anti stripping agent. Case -1 Type A (Providing and laying liquid seal coat comprising of a layer of bituminous binder (paving bitumen 60/70 or Vg-30 grade, followed by a cover of crushed stone chipping of specified grade).

Cost of haulage excluding loading and unloading. (i) Surface road. (Lead from Umrongso to Doboka: 88.00 Km after deduction of 5.00 Km initial lead)

Maintenance of earth shoulder (Stripping excess soil) ( stripping excess soil from the shoulder (Average depth 75 mm) surface to achieve the approved level and compacting with plate compactor).

AYUSH ENTERPRISE