SPECIAL REPAIRS TO CERTAIN ROADS INSIDE OTA CHENNAI AND AT USMAN LINE UNDER GE STM CHENNAI

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 premixed bitumen mix as specified for SDAC ,well rammed and rolled with power roller complete all as specified and as directed by Engineer-in-Charge.

M&L for preparing unsurfaced water bound macadam surfaces by brushing with wire brushes for removing caked mud etc., sweeping with brooms and finally fanning the cleaned surface with Air Compressor to remove all loose dirt etc complete all as specified and as directed by Engineer-in-Charge.

M&L for applying paving bitumen of grade VG-30 evenly as a priming / tack coat with bituminous primer at the rate of 10 Kg / 10 Sqm on unsurfaced WBM surface by using bitumen sprayer machine complete all as specified and as directed.

M&L for preparing existing black top surfaces of road by brushing with wire brush for removing caked mud etc, sweeping with brooms and finally fanning the cleaned surfaces with air compressor to remove all loose dirt etc.complete all as specified and as directed by Engineer-in-Charge.

M&L for applying evenly as a tack coat with bitumen primer of paving bitumen of grade VG-30 at the rate of 5 kg per 10 sqm over bituminous surface by using bitumen sprayer machine complete all as specified and directed.