SPECIAL REPAIR OF BITUMINIOUS ROAD FROM HELIPAD TO COOK HOUSE (480 MTR LONG AND 03 MTR WIDE) AND JCO MESS TO MT PARK (130 MTR LONG AND 03 MTR WIDE) UNDER AGE (I) BHALRA

Scarifying or picking graveled, macadam or bituminous macadam surfaces in area not exceeding 400 Sqm, exceeding 50 mm and not exceeding 100 mm deep complete all as specified and as directed.

75mm thick (Compacted thickness) WBM in one layers of 75 mm each (compacted) with coarse aggregates of grading 2 (63 to 40 mm size) Granite, trap or Basalt, rolled and cosolidated to gradient and camber required with tandem vibratory roller complete all as specified and directed.

Preparing WBM surfaces by brushing with wire brushes for removing caked mud etc, sweeping with brooms and finally fanning the cleaned surface with mechanical air blower to remove all loose dirt/foreign materials and applying evenly a priming tack coat with bituminous primer (Grade VG-10) at the rate of 10 Kg per 10 Sqm of surfaces complete all as specified and directed.

Preparation of black top surfaces by brushing with wire brushes for removing caked mud etc sweeping with brooms and finally fanning the cleaned surfaces with air compressor to remove all loose dust and dirt etc including draining off water if any and applying tack coat of VG -10 grade @ 5 Kg per 10 Sqm with mechanical sprayer, 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 applying tack coat with bituminous primer @ 5 Kg per 10 Sqm, putting in premixed bituminous macadam, well rammed and sealed with binder 9.8 Kg per 10 Sqm blinded with 0.09 Cum of stone chipping, again well rammed (including supply of premixed macadam, binder and chipping etc) depth of potholes exc 30mm complete all as specified and directed.

Premix bituminious, macadam with 4% binder content by weight of total mix using bitumen VG-30 laid with self propelling mechanical paver, rolled & compacted to required gradient and camber (consolidated thickness upto maximum 50mm) completed all as specified and directed.

Premixed semi dense asphltic concrete 30mm thick consolidated thickness, with 5.5% binder content by weight of total mix using VG-30 grade bitumen, laid with mechanical paver, rolled and compacted to unifoam smooth surface with 8 to 10 tonne power roller complete after all as specifed and directed.

Hot thermo plastic imported road marking material strips conforming to Britsh specification 3762 with 20% glass beads having reflective index of 1.5mm 75% spterical with indigenous or for foundation plan having sufficient strength to with stand heavy load without deformation and having softening point 25 to 30 of area in width of not exc 15cm and 2.5mm thick strip in white colour according to IRC 35-1970, complete all as specified and directed. Note : Thermo plastic road marking paint shall be of make : ASIAN/STP Ltd.

Aluminium body dual directional reflective cat eye of aluminium casted stud 100mm x 100mm having plastic ABS strip containing 31 mini retroreflective glass beads of colour white/red/yellow side provided with steel zinc pasted nails of dia 12 mm and of length 120mm by hammering or epoxy resign including removal of old unserviceable stud, complete all as specified and directed. Note: Greenlite/ Dark Eye/ Sinor.

Excavation in trenches not exc 1.5 m wide and not exc 1.5 m in depth for laying pipes etc or for manhole shaft not exc 10 Sqm on plan and getting out in any type of soil complete all as specified and directed.