REPAIR AND MAINT TO INTERNAL BLACK TOP ROADS AT SIGAR MIL STN UNDER GE 872 EWS.

Scarifying or picking gravelled, macadam or bituminous macadam surfaces exc 50 mm and not exc 100 mm in deep, area not exc400 sqm each, and removing n exc 50 metre. Stacking complete all as specified and directed.

M&L for Applying evenly a priming/tack coat with paving bitumen VG-10 @ 7.5Kg per 10 Square Metre on black top surface. complete all as specified and directed. Note: Tack coat shall be applied with mechanical sprayer complete all as specified & as directed.

M&L for bituminous macadam not exceeding 75 mm consolidated thickness using hot mix plant and mechanical paver with 4% binder (paving grade bitumen VG-30 grade) content by weight of total mix, rolled and compacted with power roller 8 to 10 tonnes to required camber and gradient complete all as specified and as directed. Note :- (i) Bitumin macadam shall be laid using self propelled hydrastatic paver finisher. (ii) Preparation of mix shall be using hot mix plant and transporting in tipper.

Preparing existing black top surfaces 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 etc. complete all as specified and as directed.

M & L for Applying evenly a priming/tack coat with paving bitumen VG-10 @ 5 Kg per 10 Square Metre on black top surface.complete all as specified and as directed. Note: Tack coat shall be applied with mechanical sprayer complete all as specified & as directed.

M & L for Applying evenly a priming/tack coat with paving bitumen VG-10 @ 2.5 Kg per 10 Square Metre on black top surface.complete all as specified and as directed. Note: Tack coat shall be applied with mechanical sprayer complete all as specified & as directed.

M&L for semi dense bituminous asphaltic concrete 40 mm (consolidated thickness) using crushed stone aggregate premixed with binder (paving grade bitumen VG-30 grade) @ 5.5 % by weight of total mix and hydrated lime filler, rolled and compacted to required camber and gradient complete all as specified and as direted. (Note : - (i) Bituminous premix asphaltic concrete shall be laid using self propelled hydrastatic paver. (ii) Preparation of mix shall be using hot mix plant and transporting in tipper . (iii) Rolling shall be done in three stages as per clause 5.6.2 of IRC 111:2009 using 9 to 10 tonnes dead weight or vibratory steel wheel roller, pneumatic rollar of 12 to 15 tonnes and finally 6 to 8 tonnes smooth wheel rollars .

M & L for preparing bituminous surfaces of road and marking 2.5mm thick centre lines, stop lines, dashes, arrows etc. and the like n. exc 10cm wide on roads pavements with hot applied thermo plastic road marking paint of approved colour confirming to BS 3262-1989 with special applicator machine all as per manufacturers instruction complete all as specified and directed.

Repair to potholes any depth, not exc 1 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 in depth, making good by filling in screened & graded road metal, watering and well ramming (including supply of road metal) and making good by applying tack coat @ 5 kg per 10 sq m, putting in premixed bituminous macadam, well rammed and sealed with binder 9.8 kg per 10 sq m, blinded with 0.09 cu m of stone chippings, 6.3 mm size and again well rammed (including supply of premixed macadam, binder and chippings) depth of potholes exc 30 mm complete all as spcified and directed.

S & F in repair convex mirror of size 800 mm dia for traffic purpose mounted on 2.0 metre long MS pole of suitable dia fixed with nut bolt and clamp system including necessary excavation and PCC 1:2:4 for fixing of pole in ground at suitable depth complete all as specifed and directed.