REPAIRS / MAINT TO ROAD, PQC CONCRETE INCL REPLACEMENT OF ROAD FURNITURE IN TECHNICAL AREA UNDER AGE B/R-I, CHANDIPUR

Demolition of Concrete in ground floors and pavings n exc 15 cm thickness (below or above ground level) complete all as specified and directed.

M & L Cement concrete M-40 (design mix) in pavement/ hard-standing of flexural strength 40 kg/per square centimetre in field using 400 kg of cement per cubic metre, thickness of concrete 25 cm or less complete all as specified and as directed.

M & L Forming 12mm thick expansion joints filled with pre-formed bituminous filler and top 30mm primed and sealed with sealing compound, Grade ‘A’ for 100mm thick cocrete slab complete all as specified and as directed.

M & L Scarifying or picking gravelled, macadam or bituminous macadam surfaces in area n exc 400 sqm, n.exe 50 mm deep and removing n. exe 50 mtr and stacking and further depositing where directed complete all as specified and directed.

M & L for 75 mm thick (compacted thickness) WBM with granite trap or basalt, with coarse aggregates of grading 2 (63 to 40mm size) or of grading 3 (50 to 20mm size), spread, rolled and consolidated to gradient and camber required complete all as specified and directed.

Apply evenly a prime coat of Cationic Bitumen Emulsion SS-1 conforming to IS-8887 at a rate of application of 0.7-1 Kg/sqm on surface of WMM/WBM as specified in Table 500-3 of MoRTH specification for road and Bridge works 2013, using mechanical sprayer complete all as specified and directed.

M & L Premixed Bituminous Macadam with 4% binder content by weight of total mix laid, rolled and compacted to required gradient and camber (consolidated thickness 75 mm or less) all as per directed by Engr-in Charge.

Apply evenly a tack coat of Cationic Bitumen Emulsion (RS-1) conforming to IS-8887 at a rate of application of 0.2-0.3 Kg/sqm on Bituminous surface as specified in Table 500-5 of MoRTH specification for road and Bridge works 2013, using mechanical sprayer after cleaning of existing surface as specified and directed.

M & L bituminous premix semi dense asphaltic concrete 40 mm consolidated thickness with 5.5 % binder content with admixture of OPC cement /stone dust as per recommendation of design by weight of total mix from hot mix plant, rolled by 8 to 12 tonne vibrating (tandom) road roller to confirm uniform surface and compacted to required gradient complete with mechanical paver all as directed by Engr - in Charge.

M & L Thermoplastic road marking paint 2.5 mm thick ( lines, dashes, arrows letters etc on wall , pavements and the like) with road safety spikeries glass beads 8% including preparation of new or previously treated road surface by using special applicator machine with heating arrangement upto 160 degree centigrade complete all as specified.