CERTAIN REPAIRS TO ROAD AND ROAD FURNITURE AT NEW AND OLD NAVY NAGAR COLABA MUMBAI UNDER GE (NW) NAVY NAGAR, COLABA, MUMBAI

Repair to potholes any depth n.exc 1 Sqm each including sweeping free from dust and mud, or water scoring sunken surfaces in roads, paths, etc. Cutting around edges to atleast 25mm in depth,Making good by applying a tack coat with bituminous primer VG-30 @10 kg per 10 Sqm putting in premix bituminous macadum , well rammed and sealed with 9.8 kg of binder VG-30 per 10 sqm blinded with 0.09 cum of stones chipping 6.3 mm size and again well rammed (including supply of premixed macadam binder VG-30 and chippings.) Depth of pot holes exc 30 mm including rolled with 10 to 12 tonne road roller complete all as specified and directed.

M&L for laying and compacting 75 mm thick (compacted thickness) Wet Mix Macadam (WMM) grading as per table 400-13 of MoRTH specifications for Road and Bridge works 2013 manufactured in WMM plant material comprising of clean, crushed, graded aggregate and granular material premixed with water to a dense mass, spreading with sensor paver and rolling with vibratory roller of capacity 80 to 100KN static weight and consolidating to required gradient and camber complete all as specified and directed. The finished surface tolerances to be as per Table 900-1 of MoRTH specifications for Road and Bridge works 2013

M&L for preparing existing bituminous surfaces/ concrete by brushing with wire brushes for removing caked mud, sweeping with brooms and finally fanning the cleaned surfaces with gunny bags to remove all loose dirt etc. and applying evenly a prime/ tack coat with bitumen primer using paving bitumen VG-30, 5 Kg per 10 Sqm with the help of pressure sprayer complete all as specified and directed by Engineer-in-Charge.

M&L for preparing existing bituminous surfaces/ concrete by cleaning with mechanical broom and providing and applying tack coat using rapid setting bitumen emulsion conforming to IS:8887 on bituminous surface @ 0.25kg/sqm, using bituminous emulsion pressure distributer complete all as specified and directed by Engineer-in-Charge.

M&L for Bituminous premix asphaltic dense concrete 40 mm consolidated thickness with min 5.5 % binder content by weight of total mix using paving bitumen VG-30, rolled and compacted to required camber and gradient with 8 to 12 Tonne capacity power roller complete all as specified. Note :- (i) Semi dense bituminous concrete shall be laid using self propelled hydrostatic paver finisher and preparation of mix shall be using hot mix plant and transporting the mix in tipper. (ii) The exact bitumen content required shall be determined following the Marshall Mix Design procedure contained in the Asphalt Institute Manual MS-2 (Sixth Edition) as referred in case 3.5.3 of IRC 111: 2009. The adjustment in rate on MINUS side variation in quantity of bitumen if any shall be priced at the rate of ₹65 per kg. No claim whatsoever shall be made for adjustment in plus side.

Material and labour for premix bituminous macadam consolidated any thickness by using paving bitumen VG-30 grade with binder content @ 4% by weight of total mix, laying with mechanical paver, rolled and compacted to required camber and gradient by using 8 to 10 tonne capacity power roller complete all as specified and directed. Note :- (i) Semi dense bituminous macadam shall be laid using self propelled hydrostatic paver finisher and preparation of mix shall be using hot mix plant and transporting the mix in tipper. (ii) The exact bitumen content required shall be determined following the Marshall Mix Design procedure contained in the Asphalt Institute Manual MS-2 (Sixth Edition) as referred in case 3.5.3 of IRC 111: 2009. The adjustment in rate on MINUS side variation in quantity of bitumen if any shall be priced at the rate of ₹65 per kg. No claim whatsoever shall be made for adjustment in plus side.

M & L for preparing bituminous surfaces of road and marking 2.5mm thick centre lines, stop lines, dashes, arrows etc. and the like n. exc 10cm 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 by Engr-in-Charge.

Providing and fixing Glow studs of size 100x20 mm made of heavy duty body shall be moulded ASA (Acrylic styrene Acryloretrite ) or HIP (High impact polystyrene) or ABS having electronically welded micro- prismatic lens with abrasion resistant coating as approved by Engineer in charge. The glow stud shall support a load of 13635 kg tested in accordance with ASTM D4280. The slope of retro- reflective surface shall be 35 (+/-5) degress to base .The reflective panels on both sides with at least 12 cm of reflective area up each side. The luminance intensity should be as per the specification and shall be tested as described in ASTM I: 809 as recommended in BS: 873 part 4 : 1973. The studs shall be fixed to the Road surface using the adhesive conforming to IS, as per procedure recommended by the manufacturer complete as per specified directed by Engr-in-Charge.