SPECIAL REPAIRS TO CERTAIN STRETCH OF ROADS INCLUDING ADJACENT SHOULDERS, WALKWAY ETC AT NEW COLONY AND OFFRS COLONY AT MIL STN KANCHRAPARA UNDER GE BARRACKPORE

Amount

M&L for preparing black top surfaces by brushing with wire brushes for removing caked mud etc. sweeping with brooms and finally fanning the cleaned surfaces with gunny bags to remove all loose dirt and applying evenly a tack coat with paving bituminous (VG-30) primer 5 Kg/10 Sqm complete all as specified and directed. Note: (a) Surface shall be cleaned and approved by Engr-in-Charge before applying priming coat of bitumen. (b) Rates shall include applying mechanical air compressor to remove dust and sweeping residual.

M&L for bituminious premixed semi dence asphaltic concrete (SDAC) by mecanical paver, 40mm consolidated thickness using crushed graded stone aggregated mixed with binder content @ 5.5% by weight of total mix using paving bitumen, rolled & compacted to required chamber & gradient with 10 to 12 tonne capacity power rooler complete all as spacified. Note: (a) Rate quoted shall be inclusive of the cost of Design mix to be obtained from approved lab. (b) Rate quoted shall be inclusive the cost of Bitumen extraction test of mix at reqd/specified interval. (c) The work shall be carried out by using mechanical paver and rolled with 10-12 tonne power road roller.

M&L for premixed Bituminous macadam, (consolidated thickness 75 mm or less) using binder contents 4% by weight of total mix, over primed surfaces of road using paving bitumen (grade VG-30), any panetration, laid/rolled and compacted with 10-12 tonne power roller to required camber complete all as specified and directed. Note: (a) Rate quoted shall be inclusive of the cost of Bitumen extraction test of mix at reqd/specified interval. (b) The work shall be carried out by using mechanical paver and rolled with 10-12 tonne power road roller.

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 directed. Note: (a) Rate quoted shall be inclusive of the cost of testing of random samples of Precast cement concrete (M-25) kerb stones. (b) Rate quoted shall be inclusive of the cost of necessary exavation for laying stones and removal of old damaged kerb stones incl staking of debris, where directed for disposal under relevant item.

Demolition of PCC in ground floors & paving not exc 15 cm thickness (below or above ground level) (unreinforced) all as directed.

Rolling and consolidating using hand roller to formation surfaces obtained after demolition of disinterated walkway including watering as necessary and consolidating to the required level, gradient or camber, keeping roller wheels wet, if required, filling in hollows and depressions with hardcore material where required. Note : Hardcore materials as reqd shall be measured and paid seperately as supply only.

Supply only Hardcore materials (Broken stone) of size n.exc 63mm graded aggregate complete and deposited at where as specified and as directed by Engr-in-Charge.

M&L for 75 mm thick PCC (1:3:6) type C-2 (40 mm graded aggregate) as in floors/subbase finished the surface fair and even complete all as specified and as directed.

Providing and laying 80mm thick factory made chamfered edge cement concrete paver block of M-30 grade with approved colour, design & pattern as in footpath, 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 coarse 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 fine sand and cutting of paver block as per required size and pattern, finishing and sweeping extra sand complete all as specified and as directed.

Repair to potholes any depth, not exc 1sqm 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 filling in screened & graded road metal, watering and well ramming including supply of road metal complete all as specified and as directed.

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

USHA CONSTRUCTION