REPAIR/RESURFACING OF CERTAIN ROADS AND CONNECTED ITEMS AT RATNUCHAK MIL STN UNDER GE KALUCHAK

Repair to pot holes, exceeding 30mm depth, not exceeding 01 Sqm each including sweeping free from dust and mud, or water, scoring sunken surfaces in roads, paths, etc. cutting around edges to at least 25mm in depth, making good by filling in screened and graded road metal, watering and well ramming, and applying evenly a priming tack coat with bituminous primer (Viscosity Grade Paving Bitumen of Grade VG-30) at the rate of 5 Kg per 10 Sqm of surface, putting in & including premixed bituminous macadam, well rammed and sealed with binder 9.80 Kg/sqm, blinded with 0.09 cum of stone chippings, 6.3mm size and again well rammed, rolled and compacted to required camber and gradient to uniform smooth surfaces by mechanical paver and using with 8 to 12 tonne power roller (including supply of premixed macadam, binder and chippings), complete all as specified and as directed.

Scarifying or picking gravelled, macadam or bituminous macadam surface in area exceeding 400 Sqm and depth exceeding 50mm and not exceeding 100mm deep and removing the rubbish away from site to distance not exc 50mtrs, complete all as specified and as directed.

M&L 7.5cm thick (compacted thickness) WBM, with coarse aggregates of grading 2 (63 to 40mm size) or of grading 3 (50 to 20mm size), spread, rolled and consolidated to gradient and camber required complete all as specified and as directed.

Preparing un-surfaced water bound macadam surfaces by brushing with wire brushes for removing caked mud etc., sweeping with brooms and finally fanning the cleaned suraces with gunny bags to remove all loose dirt etc., applying evenly a priming/tack coat spraying with bituminous primer VG-10 @ 10 Kg per 10 Sqm of road surface and laying bituminous premix asphaltic semi dense concrete (SDAC) 40 mm thick (VG-30) with 4 % binder content by weight of total mix with paving bitumen , applied and rolling and compacted to required camber and gradient complete all as specified and as directed.

Premix bituminous macadam with broken graded stone aggregate with 4% of paving bitumen binder of viscosity grade VG-30 and applying evenly a priming/tack coat with mechanical sprayer over old black top surfaces with paving bitumen VG-10 at 10 kg per 10 sq metre grade by weight of total mix (Consolidated thickness 75mm or less), laid / rolled and compacted to required gradient and camber using power roller 8 to 12 tonne, complete all as specified and as directed.

Preparing existing black top bituminous 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 (Viscosity Grade Paving Bitumen of Grade VG-10) at the rate of 5 Kg per 10 Sqm of surface laying bituminous premix asphaltic semi dense concrete (Viscosity Grade Paving Bitumen of Grade VG-30) consolidated thickness 30 mm with 5.5 % binder content by weight of total mix and 4% stone dust conforming to specification for filler as per IRC-95, 1987 (filler) prepared in hot mix plant, rolled and compacted to required camber and gradient to uniform smooth surfaces by complete all as specified and as directed.

Supply and fixing in repairs Road Stud/ cat eye solar reflective type of metal body alloy of size100mm x 100mm x 20 mm with PAMA stripens reflector of Model No DA 972 of Dark Eye or equivalent in Greenlite/ Oscar / Siner Infrastructure/ 3M fixed with and incl MS stud of suitable size as per manufacturer's instructions complete all as specified and as directed.

Supply and fixing in repair Solar cat eye aluminium alloy (100% water proofing design according to 65) of size 125mm x 125mm x 25mm (shank 65mm) of high efficiency Mono rystafie solar panel 2.4V/ 0.3 watt one NI-ed rechargable battery (1.2V/1600MA) consisting of super bright LED with 10000 to18000 mcd completed as per manufacturers instructions etc complete all as specified and as directed.

M&L for preparing bituminous surfaces of road and Marking lines, dashes, arrows etc 2.50 mm thick centre line stop lines of any description not exc 10cm wide on road pavement surface using hot applied thermo plastic road marking paint of approved colour confirming ton BS 3262-1989 with special application machine mixed with radium glass beads @ 250 gms/Sqm with automatic machine complete all as specified and as directed. NOTE : Provide reflective and night vision (approximate temperature being 200 Celsius at the time of laying) HOT MARK thermo plastic paint (HOT application) white by indigeneous mdern propelled road marking machine as directed including all ingredients such as binder, glass beads titanium dioxide calcium cardonate inter filler etc. thermoplastic requirement for glass beads shall be confirming to BS-6086 of MOST/OSCAR specification including spraying of glass beads etc complete all as per manufacture instruction and as directed by Engr-In-Charge.

Manufacturing, supplying and fixing retro reflective Mandatory/ Regulatory sign boards of 900 mm diametre with support length of 3750 mm and made up of 2 mm thick aluminium sheet, face to be fully covered with high intensity encapsulated type heat activated retro reflective sheeting conforming to type - IV of ASTM-D 4956-01 in blue and silver white or other colour combination including subject matter, message (bi-lingual), symbols and borders etc. as per IRC ; 67:2001, pasted on substrate by an adhesive backing which shall be activated by applying heat and pressure conforming to class -2 of ASTM-D-4956-01 and fixing the same with suitable sized aluminium alloy rivets @ 20 cm c/c to back support frame of M.S. angle iron of size 25x25x3 mm along with theft resistant measures, mounted and fixed with 2 Nos. M.S. angles of size 35x35x5mm to a vertical post made up to M.S. Tee section ISMT 50x50x6 mm welded with base plate of size 100x100x5 mm at the bottom end and including making holes in pipes, angles flats, providing & fixing M.S. message plate of required size, steel work to be painted with two or more coats of synthetic enamel paint of required shade and of approved brand & manufacture over priming coat of zinc chromate yellow primer (vertical MS-Tee support to be painted in black and white colours).Backside of aluminium sheet to be painted with two or more coats of epoxy paint over and including appropriate priming coat including all leads and lifts etc. complete all as specified and as directed.