SPECIAL REPAIR TO ROADS FOR VARIOUS UNITS AT NIMU MIL STN UNDER AGE (I) NIMU

Repair to pot holes any depth not exc 1 Sqm each including sweeping free from dust and mud or water scoring sunken surfaces in roads, path etc including cutting around edges to atleast 25mm in depth and making good by applying tack coat using paving bitumen VG-10 @ at 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 cum of stone chippings, 6.3 mm size and again will rammed (including supply of premixed macadam, binder and chippings), depth of pot holes exc 30mm and directed by Engineer-in-charge.

Scarifying or picking gravelled, macadam or bituminous macadam surfaces in area exc 400 sqm (depth exceeding 50 mm but n. exc 100 mm) including stacking usable materials for re-use and removing rubbish to a distance n. exc 50 m complete all as specified and directed by Engineer-in-charge.

Preparing black top surface by brushing with wire brushes for removing caked mud etc sweeping with brooms and finally fanning the cleaned surface with gunny bags or with compressor air blower to remove all loose dust and dirt etc and applying evenly a prime coat of Cationic Bitumen Emulsion SS1 confirming to IS: 8887 at a rate o application of 0. 7-1 kg/sqm on WMM surface as specified in Table 500-3 of MoRTH specification for road and bridge works 2013, using mechanical sprayer complete all as specified and directed .

M & L for premixed bituminious macadam with 4% of binder content by weight of total mix using paving bitumen VG-10 laid with self propelling mechanical paver, rolled & compacted with roller of 8 to 12 Ton to required gradient and cabmer (consolidated thickness upto maximum 75 mm) to make good the cut edges of roads etc complete all as specified and directed by Engineer-in-charge.

Preparaing existing black top surafce by brushing with wire brushes for removing caked mud etc, sweeping with brooms and finally fanning the cleaned surafces with gunny bags to remove all loose dirt etc and applying evenly a tack coat of Cationic Bitumen Emulsion (RS-1) conforming to IS: 8887 at a rate of application of 0.2-0.3 kg/sqm on bituminous surface as specified in Table 500-5 of MaRTH specification for road and bridge works 2013, using mechanica sprayer after cleaning of existing surface as specified and directed. by Eng-in-charge.

M&L for providing 30mm thick (Consolidated thickness) Bituminous premix Semi Dense Asphaltic Concrete (SDAC) with 6% binder content using paving bitumen VG-10 by weight to total mix laid with self propelling mechanical paver, well rolled and consolidated with 8 to 12 tonne power roller to reqd gradient and camber all as specifed and directed by Engr-in-Charge

M & L preparation of new / old road surfaces and marking 2.5mm thick centre lines, stop lines, dashes, arrows etc. and the like n.exc 10 cm 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.