Repairing and resurfacing of Bituminous road in Kalpakkam Township during the year 2026 - 2027.

Earthwork in open Excavation for Road work by mechanical means (Hydraulic excavator) / manual means over areas in all types of soil, mixture of gravel, disintegrated rock, hard stiff clay, etc., including trimming bottom and side slopes in accordance with requirements of lines, grades and cross sections, preparation and consolidation of sub-grade with power road roller of 8 to 12 tonne capacity after excavating earth, making good the undulations with earth and rerolling the sub-grade, disposal of surplus earth with in a lead upto 50 metres, etc., all completed as per specifications and as directed by Engineer-In-Charge.

Filling available selected excavated earth (excluding rock) available at site in berms, low lying areas in layers not exceeding 200 mm in depth including consolidating each deposited layer by ramming and watering, levelling and dressing the top surface, lead upto 2 km and lift upto 1.5m etc., all complete as per specification.

Providing and laying of Wet Mix Macadam (WMM) for Sub-base and base course conforming to clause 406 of MORT&H Specification for road and bridge works (Fifth Revision) using 53mm downgraded stone aggregate including cost of coarse aggregates, fine aggregate, premixing the Material with water at OMC in mechanical mix plant, carriage of mixed Material by tipper to site, laying in uniform layers with paver/motor grader in sub-base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density, etc., all as per specification and as directed by Engineer-in-charge.

Providing and applying primer coat with bitumen emulsion (SS1 grade conforming to IS 8887) on prepared surface of granular base including clearing of road surface and spraying primer at the rate of 0.75 Kg/Sq.m using mechanical bitumen distributor, etc., all complete as per specification and as directed by Engineer.

Supplying and spraying of Tack coat using bituminous emulsion (RS conforming to IS 8887) at the rate of 0.25 Kgs. per sqm. on the prepared granular surface including cleaning with wire brushes, small pick axes sweeping with brooms or soft brush and finally dusting with old gunny bags and compressed air to receive bituminous treatment all complete as per specification and as directed by Engineer-In-Charge.

Providing and laying of Bituminous Macadam layer conforming to clause 504 (Grading II) of MORT&H specification for road and bridge works (Fifth Revision) using VG30 grade bitumen with minimum bitumen content of 3.4 % by mass of total mix, including cost of coarse aggregates, fine aggregates, bitumen etc., preheating and mixing at hot mix plant, cleaning of the road surface before laying the mix, application of tack coat, carrying the hot premixed materials by means of tipper, laying the hot premixed material with paver finisher, rolling with power roller with necessary hand packing and pinning to give an even surface and to achieve the desired compaction, including running expenses of all plants and machineries and proper traffic control during execution, quality control tests at required interval, etc., all complete as per specifications and as directed by Engineer-In-Charge. Note: - 1) Cleaning the road surface shall be carried out with wire brush, sweeping with mechanical broom and dusting by using compressed air as per specifications. 2) Cost of Tack coat will be paid for separately under relevant item. 3) Pre-heating of the mineral aggregate and bitumen to the specified temperature, thoroughly mixing with binder of specified bitumen content as per mix design shall be carried out at hot mix plant of specified capacity as per MORT&H Specifications. 4) Carrying the hot premixed materials by means of tipper, trucks or any other approved means to laying site. Laying the hot premixed material over the prepared surface by means of paver finisher including manual operation as and when required for proper grade, level and camber.

Grading-II (19 mm nominal size) for 50-75mm Layer thick

Providing and laying of Bituminous Concrete layer conforming to clause 507 (Grading II) of MORT&H Specification for road and bridge works (Fifth revision) using VG30 grade bitumen with minimum bitumen content of 5.4 % by mass of total mix, including cost of coarse aggregates, fine aggregates, bitumen etc., preheating and mixing at hot mix plant, cleaning of the road surface before laying the mix, application of tack coat, carrying the hot premixed materials by means of tipper, laying the hot premixed material with paver finisher, rolling with power roller with necessary hand packing and pinning to give an even surface and to achieve the desired compaction, spreading Quarry Dust, including running expenses of all plants and machineries and proper traffic control during execution, quality control tests at required interval, etc., all complete as per specifications and as directed by Engineer-In-Charge. Note: - 1) Cleaning the road surface shall be carried out with wire brush, sweeping with mechanical broom and dusting by using compressed air as per specifications. 2) Cost of Tack coat and quarry dust will be paid for separately under relevant item. 3) Pre-heating of the mineral aggregate and bitumen to the specified temperature, thoroughly mixing with binder of specified bitumen content and filler as per mix design shall be carried out at hot mix plant of specified capacity as per MORT & H Specifications. 4) Carrying the hot premixed materials by means of tipper, trucks or any other approved means to laying site. Laying the hot premixed material over the prepared surface by means of paver finisher including manual operation as and when required for proper grade, level and camber.

Grading-II (13.2 mm nominal size) for 30-40mm Layer thick

Providing and laying 2.5mm thick Hot applied Thermo Plastic Compound of make Berger or other approved equivalent make including reflectorising glass beads @ 250 gms per Sq.m area, thickness of 2.5mm is exclusive of surface applied glass beads for all types of road marking viz., centre line, speed breaker, zebra crossing, arrow marking, etc., by using modern propelled road marking machine with single coat including cost and conveyance of all ingradients such as binder, glass beads, titanium dioxide, calcium carbonate, inert fillers, colour pigments as per clause 803.4 of MORTH specifications, including cost of all other materials, hire charges for the propelled modern road marking machine, labour charges for mixing ingradients, adding glass beads and heating to the required temperature as per specifications, cleaning the road surface, advance marking of centre line, providing necessary advance cautionary sign boards, red flags, traffic cones all as per traffic rules, safeguarding the newly painted surface till drying the same, labour charges for supervision and all other incidental charges and the finished surface shall be level, uniform and free from streaks and holes etc., all complete as per specifications and as directed by Engineer-In-Charge. b) Reflective panels shall consists of number of lenses centering single or dual prismatic cubes capable of providing total internal reflection of the light entering the lense face, lenses shall be moulded of methyl methacrylate conforming to ASTM D788 or equivalent.