PROVN OF PLINTH FOR LAUNCHERS ALONGWITH IMPROVEMENT OF OP and TECH ACCN AND RPLACEMENT OF FENCING AT AF STN BHUJ.

Earth work in excavation by mechanical means (Hydraulic excavator) means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) in soils including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5m, as directed by Engineer-in-charge

Earth work in excavation by mechanical means (Hydraulic excavator) means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) in ordinary rock including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5m, as directed by Engineer-in-charge

Rolling consolidating formation surface by rolling with 8 to 10 ton roller complete all as specified

M&L for Soling (or sub base) 200 mm thick spread thickness with broken boulders or quarried stone, inter stices filled, surface formed and rolled and consolidated to required gradient and camber completed all as per directed by EIC

M&L for 150 mm thick plain cement concrete type C-2 1:3:6 (using 40mm graded stone aggregate) as in sub base complete all as specified.

M&L for 10 mm thick sand cushion with clean river sand duly clear of residual , organic and deleterious materials spread evenly to uniform thickness as specified and directed.

Supplying & laying 400 micron thick HDPE sheet( virgin quality) water proof,wrinkle free without puncture having minimum weight 390gm/sqm over tack coat as specified in the design with overlap betweenadjacent stripsand at transverse jointsas minimum 300 mm complete.

M&L 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 o gravel, fine aggregates of clean natural sand o 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 including necessary formwork ,curing and tining complete all as specified and directed. Required surface texturing to be done as specified in Clause ,10 1 14 and Table~ 9 of IRC' 15-2017 NOTE : Polyster tringular fibre will be paid seperately uner respective item.

Supply only polyester triangular fibres as secondary reinforcement in all types of concrete and mortars

M&L for Forming dummy/contraction joint with an initial saw cut of 3 mm soon after the concrete has set, upto a depth of 1/3 to 1 /4 the thickness of the slab widening the first saw cut to 6 mm and 24 mm deep by using diamond bit cutter of appropriate size straight and smooth edges Joint cleaned thoroughly with application of compressed air. Joint shall be made dry, vacuum cleaned and free of dirt, oil vegetation and other debris. Application of two coats of primer with thin brush by forward and backward movement at an interval of 30 minutes before placing the backup rod and pouring the sealant. Placing of closed cell, medium density, crossed linked polyethylene foam backup rod of 8 mm dia application of bond breaker tape on top of back up rod for complete width of the joint and filled with polyurethane based sealant complying with BS5212, BS 4254 and EN-141875-2003 with minimum movement accommodation factor (MAF) OF +/- 30% having minimum 10 year performance guarantee applying masked tape on the edges of joints and removing the masking tape after filling of sealant as per the method specified by the manufacturer complete as specified and directed