CERTAIN REPAIRS TO CERTAIN INTERNAL ROADS AT SUKNA MIL STN UNDER GE SUKNA

Amount

Scarifying or picking of existing WBM/gravelled macadam or bituminous macadam surfaces of area n. 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 150mm thick (compacted thickness) WBM in two layers [ each layer comprising of 75mm thick (compacted thickness) ] with coarse aggregate of grading 2 (63 to 40 mm size) (lime stone, sand stone, flint or Quartzite), blinded with screening of hard stone of grading 'A', spread, rolled with power roller 8 to12 tonnes & consolidated to gradient/camber required etc, complete all as specified and directed.

M&L for preparation of unsurfaced water bound macadam surfaces by brushing with wire brushes for removing caked mud etc, sweeping with brooms & finally fanning the cleaned surfaces with gunny bags to remove all loose dirt etc and applying evenly a priming /tack coat with cationic bitumen emulsion (RS-1) @ 3.50Kg/10 Sqm, 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 surfaces with gunny bags to remove all loose dirt etc and applying evenly a priming /tack coat with cationic bitumen emulsion (RS-1) @ 2.50Kg/10 Sqm, complete all as specified and directed.

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 with self propelled mechanical paver, duly rolled and compacted to required camber and gradient with 08 to 12 tonne power roller and 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 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% binder content (paving bitumen of VG-30 grade) by weight of total mix prepared in hot mix plant, laying of mix with self propelled 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 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 additional 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.

All as per item No. 6 above but for 30mm consolidated thickness of semi dense asphaltic concrete.

M & L for thermoplastic road marking paint, white or golden yellow, 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 2mm, with and including combination of retro-reflective glass beads 250-300 gm/ Sqm all as per manufacturer's instructions, using thermoplastic application unit etc, complete all as specified & 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 -I) @ 3.5 Kg per 10 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.

Demolition of existing brick edging laid dry from road sides including necessary earth work, complete all as specified and direceted.

M & L for Continuous brick edging with width equal to the width of the brick, laid dry on end vertically with burnt clay bricks of sub class B including necessary earth work, complete all as specified and direceted.

M/S PARITOSH BHOWMICK & CO