SPECIAL REPAIRS TO MAIN JUNCTION OF ROAD AT D GATE, BAYONET CHOWK AND OTHER JUNCTION WITHIN AREA OF 58 GTC HAPPY VALLEY AT SHILLONG UNDER GE SHILLONG

M&L Repair to potholes any depth, not exceeding 1 sqm each including sweeping free from dust and mud, or water, scoring sunken surfaces in roads, paths, etc., cutting around edges to at least 25 mm in depth, making good by applying tack coat at the rate of 5 kg per 10 Sqm, putting in bituminous macadam well rammed (including supply of bituminious carpet, binder and chhipping) and sealed with bitumen 9.8 kg per 10 sqm blinded with 0.09 cum stone chippings, 6.3 mm size depth of pot holes exc 30mm and rolled and compacted with power roller 8 to 12 tonnes to required camber and gradient complete all as specified and as directed.

Scarifying or picking gravelled, macadam or bituminous macadam surfaces in area exceeding 400 sqm, depth of pot hole exceeding 50 mm but not exceeding 100 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.

M&L for Laying and compacting for 150 mm thick (compacted thickness) WMM laid in two layers of 75 mm Wet Mix Macadam (WMM) grading as per table 400-13 of MaRTH 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 80-100 KN 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 MaRTH specifications for Road and Bridge works 2013 complete all as specified and directed.

Material and labour for preparing of un-surfaced WBM/ WMM by brushing with wire brushes for removing caked mud etc sweeping with brooms and cleaning complete surfaces by applying mechnical air blower upto entire complete all as specified and as directed. and applying a prime coat of Catonic bitumen emulsion RS1 conforming to IS 8887 at a rate of application of 0.7-1 kg/Sqm on surface of WBM as specified in table 500-3 of MoRTH specification for Road and bridge work 2013 using mechanical sprayer complete all as specified and 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 providing premixed bituminous macadam laid/rolled and compacted to required gradient and camber using 8 to 10 tone capacity power roller (consolidated thickness 75mm or less) using paving bitumen (VG 30 Grade) @ 4% by weight of total mix complete all as specified and directed. Note:- (i) The exact bitumen content required shall be determined Mix Design procedure and approved by GE. The adjustment in rate on MINUS side variation in quantity of bitumen if any shall be priced at the rate of ₹95 per kg. No claim whatsoever shall be made for adjustment in plus side. (ii) 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.

M&L for applying a tack coat of cationic bitumen emulsion (RS1) conforming to IS: 8887 at a rate of application of 0.20- 0.30kg/ sqm on bituminious surface as specified in Table- 500-3 of MoRTH specifications for road and bridge work 2013, using mechanical sprayer after cleaning of existing surface complete all as specified and directed .

Material and labour for bituminous premixed semi-dense asphaltic concrete, 40mm consolidated thickness using 5.5% paving bitumen (VG 30 Grade) binder content any penetration by weight of total mix, mixed in central computerized hot mix plant and laid using mechanical self propelled paver and rolled and compacted with 8 to 12 tonne power roller to uniform surfaces with required camber and gradient complete all as specified and as 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 ₹95.00 per KG of binder. No adjustment in price shall be made if the variation is on plus side. (Shillong & Umroi) "

Providing and laying at or near ground level factory made kerb stone of any size, top bullnosed shape, made of M-25 (Design Mix) grade cement concrete, 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 (thickness of joints except at sharp curve shall not to more than 5 mm), including making drainage opening wherever required complete all as specified and as directed.

Demolition of cement concrete(unreinforced) in ground floors and paving not exceeding 15 cm thickness (below or above ground level) and complete all as specified and as directed.