SPECIAL REPAIR TO ROAD AT VARIOUS LOCATIONS AT TECH AND DOMESTIC AREA AT AF STN NAL.

Scarifying or picking gravelled, macadam or bituminous macadam surfaces in area exc 400 sq m and exc 50 mm but not exc 100mm deep.

M&L for 75cm thick (compacted thickness) WBM with coarse aggregate of grading 2 (63 mm to 40 mm) or of grading 3 (50 to 20mm) spread, rolled and consolidated to gradient and camber required with granite trap or basalt stone aggregates, complete all as specified and directed.

M&L for Preparing Unsurfaced WBM by brushing with wire brushes for removing caked mud etc,sweeping with brooms and finally fanning the cleaned surface with gunny bags to remove all loose dirt, and aplying evenly a priming/tack coat with bituminous primer over WBM @ 10 Kg. Per 10 Sq.M using bitumen emulsion (RS-1) conforming to IS-8887 with mechanical sprayer, operated by cold pressure mechanism complete all as specified and as directed by the Engineer-in-Charge.

M&L for Premixed Bituminous macadam from hot mix plant with 4% binder content by weight of total mix using paving bitumen of grade VG-30,laid with Mechanical Paver, rolled and compacted with power road roller of 8 to 12 ton capacity to required gradient and camber (consolidated thickness 75 mm or less) complete all as specified and as directed by the Engineer-in-Charge. Note: Mixing of bituminous concrete shall be in hot mix plant.

M&L for Repairs to pot holes exceeding 30 mm depth,area not exceeding 1.00 Sqm each including sweeping free from dust and mud, or water scoring sunken surfaces in roads, paths etc cutting around edges to at least 25 mm depth, making good by applying tack coat with bitumenous primer using bitumen emulsion @ 5 kg /10 Sqm, putting in premixed bituminous mecadam, well rammed and sealed with binder 9.8 kg per/10 Sqm blinded with 0.09 cum of stone chippings, 6.3 mm size and again well rammed with power road roller of 8 to 12 ton capacity and consolidated including supply of premixed mecadam, binder and chipping complete all as specified and as directed by the Engineer-in-Charge.

M&L for Preparing existing black top surfaces by brushing with wire brushes for removing caked mud etc., sweeping with brooms and finally fanning the cleaned black top surface with gunny bags to remove all loose dirt and Applying evenly a priming/ tack coat @ 5 Kg. Per 10 Sq.M using bitumen emulsion (RS-1) conforming to IS-8887 with mechanical sprayer, operated by cold pressure mechanism including laying of Bituminous Premixed Semi Dense Asphaltic Concrete, 30 mm consolidated thickness, using paving bitumen of Grade VG - 30, with 5.5% of binder content by weight of total mix using Hot Mix Plant and laid with Mechanical Paver, rolled and compacted with power road roller of 8 to 12 ton capacity to required camber and gradient complete all as specified and as directed by the Engineer-in-Charge.

M&L for cleaning and preparing the bituminous road surface and making good for road marking with reflective thermoplastic white road marking paint confirming to BIS-3262, laid through Road Marking Machine in layer of Reflective thermoplastic paint (using 5kg per sqm by incorporating 8% white glass beads for reflectivity) and 2mm thick centre line, stop line etc. as per IRC pattern laid at temperature 60 degree centigrade including making necessary traffic diversion arrangement complete all as specified and as directed.

Providing and laying at or near ground level factory made kerb stone of M-25 grade cement concrete in position to the required line, level and curvature, jointed with cement mortar 1:3 (1 cement: 3 coarse sand), including making joints with or without grooves (thickness of joints except at sharp curve shall not to more than 5 mm), including making drainage opening wherever required complete. and as directed by Engr-in- Charge

Taking out Aluminium road studs/dealineator any type and any size from bituminous road before road carpeting work complete all as specified and directed by Engineer-in-Charge.

S&F of cat eye solar reflective type of metal body alloy of size 100mm x 100mm x 20mm with PMMA striplens reflector fixed with and incl MS stud of suitable size as per manufactures instructions