REPAIRS / RESURFACING TO CERTAIN ROADS AT INSIDE AND OUTSIDE OTA AND AT MH, DEFENCE COLONY, NANDAMBAKKAM AND PALLAVARAM UNDER GE STM

M&L for repairs to potholes any depth, not exceeding 1 Sqm each including sweeping, free from dust and mud, or water, scoring sunken surfaces in roads, paths, etc. by cutting around edges to at least 25mm in depth, making good by filling in with screened and graded road metal, watering and well ramming (including supply of road metal) etc. complete all as specified and as directed by Engineer- in- charge

M&L for repair to pot holes any depth not exceeding 30mm ,area not exceedig 1.00 Sqm each including sweeping free from dust, mud or water scoring sunken surfaces in roads, paths etc cutting around edges to atleast 25 mm in depth making good by applying tack coat of paving bitumen of grade VG-30 at 5 Kg per 10 Sqm, putting and filling pot holes with binder 9.8 kg per 10 Sqm, binded with 0.09Cum of stone chippings, 6.3mm size and again well rammed ( including supply of premixed macadam, binder and chippings) and rolled with power roller complete all as specified and as directed by Engineer-in-Charge.

M&L for scarifying or picking gravelled, macadam or bituminous macadam surfaces exceeding 50 mm and not exceeding 100 mm deep, in area exceeding 400 sqm, complete all as specified and directed.

M&L for water bound macadam with granite trap or basalt coarse aggregates of grading 2 (63 to 40mm size) or grading 3 (50 to 20mm size), 75mm thick (compacted thickness) spread, rolled and consolidated to gadient and chamber required by using vibratory roller 8 to 12 tonne capacity complete all as specified and directed.

All as per item no 4 above but except materials

M&L for preparation of existing unsurfaced water bound macadam by brushing with wire brushes for removing caked mud, sweeping with brooms and finally fanning the cleaned surface with air compresor / gunny bags to remove all loose dirt etc.complete complete all as specified and directed.

M&L for applying paving bitumen of grade VG-30 evely a priming / tack coat with bituminous primer 10 Kg/ 10 Sqm on unsurfaced WBM complete all as specified and as directed.

M&L for premix bituminous macadam by using Hot mix plant ,50mm / 75 mm consolidated thickness as required at site or less with 4.0 % binder content in weight of total mix by using paving bitumen VG-30 spread by using mechanical paver, rolled and consolidated to required camber and gradient complete to a uniform surface by using Tandom Vibrator power roller 8 to 12 tonne capacity complete all as specified and directed by Engineer-in-Charge