SPECIAL REPAIRS TO CERTAIN ROADS AND PROVISION OF INTERNAL ROADS AT SUKNA MIL STN UNDER GE SUKNA

Amount

Surface excavation not exc 30cm deep and averaging 15cm deep in soft/loose soil, getting out, removing of vegetation, surplus soil etc to a distance not exceeding 50 metre and depositing at a level not exceeding 1.5 metre above the starting point, complete all as specified and directed.

M & L for rolling and consolidating formation surfaces in cutting with power roller exc 08 tonne and not exc 12 tonne, complete all as specified and directed.

M & L for 150 mm thick (spread thickness) Soling (or sub base)with broken boulders or quarried stone, interstices filled, surface formed and rolled and consolidated to required gradient and camber with 8 to 12 tonne power roller to a uniform smooth surface, complete all as specified and as directed.

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 100mm thick (compacted thickness) WBM with coarse aggregate of grading 1 (90 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 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) @ 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 surface with gunny bags to remove all loose dirt 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/ 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 30mm 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 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, 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.

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

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 25 mm consolidated thickness with 5.5% 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. Note : (a) Rate deemed shall also be deemed to be included for making good of any undulation/damages in wearing surfaces, where semi dense asphaltic concrete to be laid. (b) Semi dense ashphaltic bituminous concrete shall be designed as specified and binder content shall be provided as per design mix, contractor shall quote his rates considering the bitumen contents as 5.5%. Any variation in binder content shall be adjusted at the rate of Rs 55.00 per Kilogram of binder.

ECONOMIC ELECTRICAL STORES

R N SAH N CO

G C DUTTA N CO

Janata Enterprises

S D CONSTRUCTION CO

D K SARKAR

DEBABROTA ROY CHOWDHURY