REPAIR OF PQC SLABS INCLUDING OTHER CONNECTED ITEMS IN TECH AREA AT AF STATION BHISIANA UNDER GE (AF) BHISIANA

Amount

Demolition and removal of cement concrete (un-reinforced) in ground floors and pavings exc 15 cm thickness of any description and in any position of runway or rigid pavements complete all as specified and directed by Engineer-in-Charge.

Material and labour for providing 10 mm thick sand cushion with clean river sand duly clear of residual, organic and deleterious materials spread evenly to uniform thickness laid over DLC layer (No additional amount to be paid for overlap) complete all as specified and directed by Engineer-in-Charge.

Supply and laying 400 micron polythene film as per IS-2508, white colour, laid over sand layer including all necessary cutting, overlaps not less than 300mm and waste complete all as specified and directed by the Engineer-in-Charge. Note: (i) The rates for laps shall be deemed to be included in the quoted rate shall not be measured separately. (ii) Sand layer shall be measured and paid separately under Serial item no. 2 above.

Material and labour for Providing Pavement Quality Concrete (PQC) 295 mm thick of min 28 days field flexural strength 45 kg/sqcm or 4.5 Mpa, aggregate garadation 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 or crushed stone sand or combination of both using min 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, min melting temp as 24̊ C and min tensile strength of 300 MPa and at the rate as specified by the manufacturer. PQC laid, spread and compacted with slip-form paver of min 7.50 m width, including curing and tining by texturing cum curing machine complete all as specified and directed by Engineer-in-Charge. Required surface texturing to be done as specified in clause 10.1.14 and Table of IRC 15-2017.

Supply only non-circular synthetic fiber 6/12mm long design for meeting point of 240-260̊ C as secondary reinforcement complete all as specified and directed by Engineer-in-Charge.

Material and labour for forming 10mm wide and 25 mm deep construction joints filled with polyurethane joint sealant compounds using mechanical means to a minimum depth of 10mm and priming the sides, provision of closed cell polyethylene back up rod 12 mm dia and minimum and applying masking tape on edge of joint to prevent accidental slippage of sealant on top surfaces and to give a neat finish to the sealant and removing the masking tape after sealant is applied complete all as specified and directed by Engineer-in-Charge.

Demolition and removal of cement concrete (un-reinforced) in ground floors and pavings n exc 15 cm thickness (below or above ground level) of any description and in any position of runway or pavements complete all as specified and directed by Engineer-in-Charge.

Material and labour for PCC 1:4:8 type D-2, using 40mm graded aggregate as in sub base floors pavings, and mass concrete etc complete all as specified and directed by Engr-in-Charge.

Material and labour for PCC 1:2:4 type B-1, using 20mm graded stone aggregate 75 mm thick in floor,hard standing, pavings etc complete all as specified and directed by Engineer-in-Charge.

Material and labour Machine pressed precast concrete interlocking paver block grey coloured any shape and size confirming to IS 15658-2006 of 80 mm thickness, M-40 grade with grey cement and pigment complete all as specified and directed by Engineer-in-Charge.

Material and labour for 25mm thick sand cushioning under floors or in foundation including watering and consolidation complete all as specified and directed by Engineer-in-Charge.

Material and labour for PCC 1:2:4 type B-1 using 20mm graded stone aggregate as in bands, coping, bed plate etc including weathering slightly chamfered or rounded angles including necessary form work, if any, and finishing exposed surfaces even and smooth using extra cement complete all as specified and directed by Engineer-in-Charge.

M/s BHUPINDRA ENGINEERING WORKS (BID ID -3073444)