SPECIAL REPAIR TO INTERNAL LINKING ROAD AT CGRA MANICKTALA UNDER GE (I) (CGN) KOLKATA

Amount

Scarifying or picking gravelled, macadam or bituminous macadam surfaces in area not exceeding 400 sqm, depth of pothole not exceeding 50 mm including rolling over the broken surfaces using 8 to 10 tonnes power roller to required camber and gradient complete all as specified and as directed.

Removing excavated material exceeding 1.5 KM but not exceeding 5KM and depositing where directed at a level n exc. 1.5 m above the starting point complete all as specified and as directed.

Preparing existing black top surfaces by brushing with wire brushes for removing caked mud etc., sweeping with brooms and finally fanning the cleaned surface with gunny bags to remove all loose dirt etc. complete all as specified and as directed.

Material and labour for applying tack coat of cationic Bitumen Emulsion (RS-1) conforming to IS: 8887 at the rate of 0.5 kg per sqm on existing bituminous surface as specified in Table 500-5 of MOrth specification for road and bridge work 2013. using mechanical sprayer after cleaning of existing surface as specidied.and as directed.

Material and labour for bituminous macadam not exceeding 75 mm thickness (compacted thickness) using hot mix plant and mechanical paver with 4% binder (paving grade bitumen VG-30 grade) content by weight of total mix, rolled and compacted with power roller 8 to 10 tonnes to required camber and gradient complete all as specified and as directed. Note :- (i) 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 as per IRC 27: 2009. The adjustment in rate due to variation in quantity of bitumen if any shall be priced at the rate of ₹55 per kg.

Material and labour for bituminous premix asphaltic semi dense concrete 25 mm (compacted thickness) using graded crushed stone aggregate premixed with binder (paving grade bitumen VG-30 grade) @ 5.5% by weight of total mix & hydraulic lime filler, rolled and compacted to required camber and gradient complete all as specified and as directed. 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 due to variation in quantity of bitumen if any shall be priced at the rate of ₹55 per kg.

Providing and applying 2.5 mm thick road marking strips whight or golden yellow, (retro-reflective) of specified shade/ colour using hot thermoplastic material by fully/ semi-automatic thermoplastic paint applicator machine fitted with profile shoe, glass beads dispenser, propane tank heater and profile shoe heater, driven by experienced operator on road surface including cost of material, labour, T & P, cleaning the road surface of all dirt, seals, oil, grease and foreign material etc. complete all as specified and as directed.

Supply and fixed solar road studs of size not less than 125X 125 X 25 mm made of weather resistance aluminium alloy and poly carbonate material electronically welded micro- prismatic lens with abrasion resistant coating. The cats eye shall support a load of 13635 kg tested in accordance with ASTM D4280. The slope of retro- reflective surface shall be 35⁰ ± 5⁰ 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 E: 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 and as per direction of Engineer-in-charge. The solar panel shall be high efficiency mono crystalline 2.5 V/60 m A and the battery shall be one Ni-mh type (1.2 V/1200 m Ah) high temp for backup of 36 hours full charging. The flash frequency shall be 60 ± 5 times per minute.

Providing and fixing in repairs Glow studs (cat's eye) of size 80 to 100 mm X 80 to 100 mm X 15 to 20 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 cats eye shall support a load of 13635 kg tested in accordance with ASTM D4280. The slope of retro- reflective surface shall be 35⁰ ± 5⁰ 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 and as per direction of Engineer-in-charge.

Supply and fixed metal tubular delinator made out of the ABS round body fitted with 02 No 65 mm dia reflective reflector made out of the PMMA and mounted on 50 mm dia mild steel pipe 600 mm height duly powder coated thermo platic elastomer 6 bands of green, red and yellow reflector radium tape of 25 mm wide strip with anti theft steel net for reflector protection including embeding in PCC 1:2:4 (150 x 150 x 300 mm), type B1 complete all as specified and as directed.

KT CONSTRUCTIONS

S M ENTERPRISE

M/s Santosh Industrial Corporation

RUNGTA STEEL CORPORATION

PINKY CO.

KOLAY CONSTRUCTION