ADDN/ALTN OF PQC ROAD INCLUDING INTERLOCKING OF TILES AT DAD COLONY JAMNAGAR AT BG LINES MILITARY STATION JAMNAGAR

Scarifying or picking gravelled macadam or bituminous macadam surfaces in area exc 400 Sqm and depth exceeding 50mm and n exceeding 100 mm stacking complete as directed.

Rough excavation not exceeding 1.5 m deep and getting out in soft/loose soil complete all as specified and directed.

Roilling and consolidating formation surfaces in cutting exc 8 tonnes and n exc 12 tonnes.

Material and labour for 200mm thick soiling (or sub base) with broken boulders or quarried stone, inter stices filled. Surface formed and rolled and consolidated to required gradient and camber.

Material and labour for 75mm thick (compacted thickness) WBM with coarse aggregates (granite, trap or basalt) of grading 2 (63 to 40mm size) or of grading 3 (50 to 20mm size), spread, rolled and consolidated to gradient and camber required and as directed by Engineer-in-Charge.

Material and labour for providing and Laying Dry lean Concrete (DLC) 100 mm thick of aggregate gradation as per Table 1 of SP 49:2014 having 7 day average compressive strength not less than 7 MPa Minimum cement not less than 140 Kg/Cum DLC mixed in Batching Plant, transported to site and laid by electronic sensor paver including spreading and compacting usign high amplitude tamping bars of paver (initial compaction) further by double drum smooth wheeled vibratory rollers with 80-100 KN static weight to achieve minimum dry density not less than 98% of maximum Dry Density, necessary finishing etc complete all as specified.

Material and labour for 10mm thick sand cushion with clean sand duly clear of residual, organicand deletorious materials spread evenly to uniform thickness laid over DLC layer as specified and directed.

Supplying and laying 400 micron thick HDPE sheet (virgin quality) water proof, wrinkle free without puncture having minimum weight 390 gm/Sqm over tack coat and cushion as specified n the design with overlap between adjacent strips and at transvers joints as minimum 300 mm.

Material and Labour for 150 mm thick Pavement quality concrete(PQC) of minimum 28 days field Flexural strength of 45Kg/ Sqcm or 4.5 Mpa, aggregate gradation as per Table 3 of IRC 15 2017, coarse aggregate of clean, hard strong, dense non-porous and durable pieces of crushed stone or gravel, fine aggregates of clean natural sand of crushed stone sand or combination of both using minimum 360 kg/cum of cement with non-circular virgin synthetic fibre of 12-18 mm length, specific gravity 1.34 to 1.39, UV stable, alkali resistant, with equivalent dia 15-40 micron, minimum melting temperature as 240°C and minimum tensile strength of 300 Mpa and at the rate as specified by the manufacturer. PQC laid, spread and compacted with slip-form paver of minimum 7.50 m width, including curing and tining by Texturing cum Curing Machine complete all as specified and directed. Required surface texturing to be done as specified in Clauser,10 1 14 and Tabl~ 9 of IRC' 15-2017.

Forming 12mm thick Expansion joints in 150mm thick concrete slab filled with pre-formed bituminous filled and top 30mm primed and sealed with sealing ompound Grade 'A'.