REPAIR / MAINT OF INTERNAL LINK ROAD AT IMTRAT UNDER GE (AF) HASIMARA

Repair to potholes any depth, not exc 1.00 Sqm each including sweeping free from dust and mud, or water, scoring sunken surfaces in roads, paths, etc. cutting around edges to at least 30 mm in depth making good by applying tack coat with bituminous primer using paving bitumen @ 5kgs/10 sqm, putting in pre-mixed bituminous macadam, well rammed and sealed with binder 9.8 kg per 10 sqm blinded with 0.09 cum of stone chipping 6.3 mm size and again well rammed (including supply of premixed macadam, binder and chippings) complete all as specified and directed.

M&L for preparing existing black top surfaces by brushing with wire brushes for removing caked mud etc sweeping with gunny bags to remove all loose dirt etc and applying evenly a priming/tack coat of Cationic Bitumen Emulsion (RS-1) conforming to IS: 8887 at a rate of application of 0.2-0.3 kg/sqm on bituminous surface as specified in Table 500-5 of MoRTH specification for road and bridge works 2013, using mechanical sprayer after cleaning of existing surface as specified and directed by Engr-in-Charge.

M&L for filling with moorum/red bajri in road berms or pavings, laid in layers not exceeding 15 cm thickness, including spreading, levelling, watering and ramming/compaction, complete all as specified and as directed by Engr-in-charge.

M&L for preparing the surface of new or previously untreated existing/new RCC kerb stones, of any description over 10 cm girth, by thoroughly cleaning to remove dust, dirt, laitance, grease, loose mortar and other foreign matter, including rubbing with emery paper/wire brush wherever required; applying one coat of approved cement primer/alkali-resistant primer, as applicable, followed by two coats of approved synthetic enamel paint of approved brand and manufacture, conforming to IS 2932 or the latest relevant Indian Standard, in alternate black and white bands of equal width, generally 250 mm or 300 mm, complete. The finished surface shall be smooth, uniform in colour and free from brush marks, streaks and other defects, all as specified and directed.

M&L for premix bituminous macadam (using 4% binder content by weight of total mix) laid/rolled and compacted to required gradient and camber (consolidated thickness 75mm or less) using paving bitumen of grade VG-30 complete all as specified and directed.

M&L for providing and laying factory-made kerb stones of M-25 grade cement concrete at or near ground level, in position to the required line, level and curvature, jointed with cement mortar 1:3 (1 cement : 3 coarse sand), including making joints with or without grooves, (the thickness of joints except at sharp curves shall not exceed 5 mm) and including providing drainage openings wherever required, complete all as specified and directed.

M&L for bituminous premix semi-dense asphaltic concrete 40 mm thick consolidated thickness with 5.50% binder content by weight of total mix using paving bitumen of grade 30 (VG 30), rolled and compacted, mixed in mechanical hot mixed plant and pre-mixed material laid with mechanical paver, finished including rolling to required gradient and camber with 8 to 10 tonne complete all as specified and directed. Note:- Semi-dense asphaltic bituminous concrete shall be designed as per design mix. Contractor shall quote his unit rate considering the bitumen contents as 5.5%. Any variation in binder content on minus side shall be adjusted at the rate of Rs. 50.00 per KG of binder. No adjustment in price shall be made if the variation is on 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. Note:- Application shall be carried out through mechanical applicances by the approved applicator of the manufacturer of paint

Demolition of cement concrete (un-reinforced) in ground floor and paving not exc. 15 cm thick (Below or above ground level) including removal of debris/demolishged material to a distance of exc 50m and Not exc 250m complete all as specified and directed.

M&L PCC 1:3:6 type C-2 (using 40 mm graded crushed stone aggregate) as in foundation, filling and mass concrete complete all as specified and directed.