PROVN OF WIDENING OF ROAD FROM INFANTRY CIRCLE TO ASTC UNDER AOR OF AGE B/R-II OF GE (N) MAMUN

Amount

Surface excavation n exc 30cm deep and averaging 15cm deep and getting out in soft and loose soil, complete all as specified & directed.

Removing excavation material n exc. 50m and deposited where directed at a level n exc. 1.5m above the starting point complete all as specified and directed.

Material and Labour for Rolling and consolidating formation surface in cutting/filling using power roller of capacity exc 8 tonne & n exc 12 tonne, complete all as specified and directed.

Material and Labour for 150 mm thick (spread thickness) soling with broken boulders or quarried stones of range 100mm to 50mm, interstices filled, surfaces formed and rolled with power roller 8/12 tonne and consolidated to required gradient, complete all as specified.

Material and Labour for 75mm thick compacted thickness Water Bound macadam with coarse aggregate of Granite, trap or Basalt of grading 2 (63 to 40mm size) or of grading 3 (50 to 20mm size), spread, rolled with power roller 8 to 12 tonne to required gradient and camber, complete all as specified.

Preparing surface of unsufaced water bound macadam (WBM) by brushing with wire brushes for removing caked mud etc, sweeping with brooms and finally fanning the surfaces by mechanical compressor to remove all loose dirt a complete all as specified and directed.

Material & labour for applying evenly a priming/tack coat with paving bitumen VG 10 grade @ 10 Kg per 10Sqm of road surface complete all as specified and directed.

Material & labour for applying evenly a priming/tack coat with paving bitumen VG 10 grade @ 5 Kg per 10Sqm of road surface complete all as specified and directed.

Material and Labour for bituminous premixed semi dense asphaltic concrete 40mm thick (consolidated thickness) using binder (Bitumen VG-30 grade) contents @ 5.5 % by weight of total mix, mixed in Hot mix Plant and laid by using self propelled mechanical paver, rolled and compacted to required camber & gradient using 8 to 10 tonne power roller/tandem vibrating roller to achieve uniform smooth surface complete all as specified and directed. Note: The combined grading of aggragate shall be as per Para 20.B.2.5.4 (d) & 20.B.4 of SSR Part-I.

Material and Labour for Repair to potholes depth of potholes exc 30 mm, not exc 1 sq m 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 of paving bitumen (VG-10) @ 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, 6.3mm size and again well rammed (including supply of premixed macadam, binder and chippings), complete all as specified. Note : The patching of pot holes shall be as per para 20.A.34.2 of SSR Part-I

Material and Labour for Repair to potholes depth of potholes exc 30 mm, not exc 1 sq m 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 with bituminous primer @ 5 kg per 10 sq m, putting in premix as specified for thin bituminous carpet (2 cm thick) well rammed and sealed with premixed sand seal coat (6.8 kg of binder with 0.06 cu m of sand), again well rammed (including supply of premix binder and sand), complete all as specified. Note : The patching of pot holes shall be as per para 20.A.34.2 of SSR Part-I

Material and Labour for thermoplastic road marking paint 2mm thick, white or golden yellow in colour, conforming to BS-3262, in lines, arrow, dashes & letters not exceeding 15cm in width, applied hot, using application unit and retroreflective glass beads @ 250 to 300 gram/Sqm to withstand vehicular traffic load, laid as per manufacture's instructions, the finish surfaces to be level, uniform and free from streaks and holes as per MORTH specification complete all as specified and directed.

Sandeep Kumar

M/s Trade Linker Associates