SPECIAL REPAIR TO ROAD AT CSD DEPOT BAGDOGRA MIL STN UNDER GE BENGDUBI

Amount

Scarifying or picking of existing WBM/gravelled macadam or bituminous macadam surfaces of area not exc 400 sqm and depth exc 50 mm and n.exc 100 mm including removing of debries etc from site to a distance n.exc 50 metres, complete all as specified and directed.

M&L for laying 75mm thick (compacted thickness) WBM with coarse aggregate of grading 2 (63 to 40 mm size) (lime stone, sand stone, flint or Quartzite), spread, rolled with power roller 8 to12 tonnes & consolidated to gradient/camber required etc, complete all as specified and directed.

All as per item No 2 above but except material i.e using servicable materials rebieved from item No 1 here-in-before.

M&L for preparation of unsurfaced water bound macadam by brushing with wire brushes for removing caked mud etc., sweeping with brooms & finally fanning the cleaned surface with gunny bags to remove all loose dirt and applying evenly a priming /tack coat with cationic bitumen emulsion SS-1 confirming to IS 8887 @ 0.70-1.00 kg/sqm on surface of WBM as specified in table 500-5 of MoRTH specification for road and bridge work 2013, using mechanical sprayer complete all as specified and directed.

M&L for preparation of existing black top surfaces by brushing with wire brushes for removing caked mud etc., sweeping with brooms & finally fanning the cleaned surface with gunny bags to remove all loose dirt and applying evenly a priming /tack coat with cationic bitumen emulsion RS-1 confirming to IS 8887 @ 0.20-0.30 kg/sqm on bituminous surface as specified in Table 500-5 of MORTH specification for road and bridge work 2013, using mechanical spraye, complete all as specified and directed.

Material and Labour for repairs to pot holes, any depth, not exc 1.0 sqm each including sweeping free from dust and mud or water, scoring sunken surfaces in roads, paths etc, cutting around edges to atleast 25 mm in depth, making good by applying tack coat of cationic bitumen emulsion RS-1 confirming to IS 8887 @ 0.20-0.30 kg/sqm , putting in premixed asphaltic semi dense concrete minimum 25 mm consolidated thickness with 5% of binder content of paving bitumen VG - 30 grade by weight of total mix (premixed material prepared in hot mixed plant), pre- mixed material laid with self propelled mechanical paver, finished inlcuding rolling and compacting the surfaces to required gradient and camber with 8 to 12 tonne power roller and tandom vibrating roller etc, complete all as specified and as directed. Notes : (a) Rate quoted shall also be deemed to include for making good of any undulation/damages in wearing surfaces, where semi dense asphaltic concrete to be laid. (b) The binder content for the semi dense ashphaltic bituminous concrete to be provided under the above item shall be worked out on proportionate basis of the design mix formula approved for the SDAC item here-in-before and binder content shall be provided accordingly, contractor shall quote his rates considering the bitumen contents as 5%. Any variation in binder content shall be adjusted at the rate of Rs 55.00 per Kilogram of binder.

M&L for premix bituminous macadam with 4% binder content (paving bitumen of grade VG-30) by weight of total mix prepared in hot mix plant, laying of mix withself propelled sensor based mechanical paver, duly rolled and compacted to required camber and gradient with 08 to 12 tonne power roller and vibrating roller (consolidated thickness 75mm or less) etc, complete all as specified and directed. Notes:- The contractor's quoted rates shall also be deemed to include the following elements: (i) The contractor shall get the mix design done through Govt. approved Lab/ NABL approved Lab and the same shall be got approved from the GE before providing Bituminous Macadum. (ii) In case of variation in the bitumen content as per approved design mix in comparison with the bitumen content as specified above, the variation in quantity of bitumen shall be adjusted @ Rs 55 per Kg.

M&L for Bituminous premix semi dense asphaltic concrete 40mm consolidated thickness with 5.5% binder content (paving bitumen of VG-30 grade) by weight of total mix prepared in hot mix plant, laying of mix with self propelled sensor based mechanical paver, the surfaces rolled and compacted to required camber and gradient with 08 to 12 tonne power roller and tandem vibrating roller etc complete all as specified and directed. Notes:- The contractor's quoted rates shall also be deemed to include the following elements: (i) The contractor shall get the mix design done through Govt. approved Lab/ NABL approved Lab and the same shall be got approved from the GE before providing SDAC. (ii) In case of variation in the bitumen content as per approved design mix in comparison with the bitumen content as specified above, the variation in quantity of bitumen shall be adjusted @ Rs.55 per Kg . (iii) The thickeness of SDAC indicated above is the minimum thickness, Further, it is clarified that no payment for the addl. thickness in case required to be provided to achieve the desired levels, slope & making good the undulations etc, all as directed by the GE, shall be made.

M & L for thermoplastic road marking paint, white or golden yellow @ 5kg/Sqm, conforming to BS-3262 applied on road/pavement as in lines, dashes, arrows, letters etc, exc 10 cm in width & of thickness not less than 2.5mm, with and including combination of retro-reflective glass beads 250 gm/ Sqm all as per manufacturer's instructions, using special applicator machine etc, complete all as specified & directed.

S&F in repair solar cat eye aluminum alloy shall (100% water proofing design according to 65) of size 125mm x 125mm x 25mm (shank 65mm) of high efficiency Mono rystafie solar panel 2.4V/0.3 watt one NI-ed rechargeable battery (1.2V/1600MA) consisting of super bright LED with 10,000 to 18,000 mcd completed as per manufactures instructions etc. complete all as specified and directed.

S&F in repair cat eye ABS confirming to INC code 67-3977 having load bearing capacity of 13.5 tonne (point load) of approx size 100 x 100 x 20mm high with reflectors on both sides, on road surfaces with and including epoxy/approved adhesive all as per manufacturer’s instructions, complete all as specified and directed complete all as specified and directed.

S&F in repair metal tubular dealineator made out of ABS round body fitted with 2 Nos 65 mm dia highly reflective reflectors made out of PMMA and mounted on 45/50 mm dia mild steel pipe of 600 mm height duly powder coated and thermoplastic elastomer 3 bands of green, red and yellow reflector radium tape of 25 mm wide strips with anti theft steel net for reflector protection including embedding in PCC 1:2:4 (150x150x300mm) type B1, complete all as specified and directed.

Demolition of cement concrete (un reinforced) in ground floors and pavings n.exc 15cm thickness (below or above ground level), including removal of debris ouside the premises, Complete all as specified and directed.

Surface dressing n exc 15cm deep in soft and loose soil, on the uneven surfaces of natural ground, filled up area, removing vegetation, scrapping high patches, filling in low patches the scrapped soil to obtain an even and neat look on the road side berms etc including dispsoal of debries outside the site premises, complete all as specified and directed by GE.

M&L for PCC type D-2, 1:4:8 (using 40mm graded crushed stone aggregate) as in foundation, filling & mass concrete, complete all as specified and directed.

M&L for hardcore of broken stones or boulders of gauge not exc 63 mm, deposited, spread and levelled in layers not exc 15 cm thick, watered & rammed to a true surface, complete all as specified and directed.

M&L for 75mm thick PCC type C-2, 1:3:6 (using 40mm graded stone aggregate) as in floor etc, complete all as specified and directed.

M&L for 100mm thick PCC type B2, 1:2:4 (using 40mm graded crushed stone aggregate) as in sub-base of hardstanding and ramp, complete all as specified and directed.

M&L for r providing and laying 80mm thick factory made chamfered edge cement concrete paver block of M-35 grade with approved colour, design & pattern as in footparth, parks, lawns, drive ways or light traffic parking etc., of required strength, thickness & size/ shape, made by table vibratory method using PU mould, laid in required colour & pattern over and including 50mm thick compacted bed of fine sand, compacting and proper embedding/ laying of inter locking paver blocks into the sand bedding layer through vibratory compaction by using plate vibrator, filling the joints with sand and cutting of paver blocks as per required size and pattern, finishing and sweeping extra sand, complete all as specified and directed.

M&L for providing and laying at or near ground level factory made kerb stone of M-25 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.

Prahalad Rai

NEO BUILDERS