REPAIR TO PU JOINT FILLING WORKS OF RIGID PAVEMENTS IN TECH AREA AT AF STN ADAMPUR

M&L for repair / replacement of (existing) 8-12 mm wide contraction (Dummy) joints in rigid pavements by using polyurethane joint sealant ( minimum depth 12 mm ) after priming the vertical surface twice and sealed flush to a level of 2-3 mm below the top of the adjacent pavement and provision of 12 mm to 15 mm dia polyurethane foam closed cell backup rod and including raking out existing joints (upto approx 22 mm to 27 mm depth) and removing unserviceable polyurethane joint sealant/ sealing compound of any description alongwith polyurethane foam backup road and cleaning / preparing the joint surface complete all as specified and directed.

M&L for repair / replacement of (existing) 18-22 mm wide construction joints in rigid pavements by using polyurethane joint sealant ( minimum depth 12 mm ) after priming the vertical surface twice and sealed flush to a level of 2-3 mm below the top of the adjacent pavement and provision of 20 mm to 25 mm dia polyurethane foam closed cell backup rod and including raking out existing joints (upto approx 35 mm to 40 mm depth) and removing unserviceable polyurethane joint sealant/ sealing compound of any description alongwith polyurethane foam backup rod and cleaning / preparing the joint surface complete all as specified and directed.

M&L for repair / replacement of (existing) 23-27 mm wide expansion joints in rigid pavements by using polyurethane joint sealant ( minimum depth 12 mm ) after priming the vertical surface twice and sealed flush to a level of 2-3 mm below the top of the adjacent pavement and provision of 25 mm to 30 mm dia polyurethane foam closed cell backup rod and including raking out existing joints (upto approx 42 mm to 45 mm depth) and removing unserviceable polyurethane joint sealant/ sealing compound of any description alongwith polyurethane foam backup road and cleaning / preparing the joint surface complete all as specified and directed.

M&L for repairs to concrete pavements by cutting the damaged, spoiled edges in concrete pavements slabs to rectangular cross section with diamond tip cutters, removing all loose and foreign materials to a distance exceeding 500 metres but not exc 1 Kilometre, cleaning surface thoroughly with wire/coir brushes and then cleaning the surfaces with compressed air by compressors, priming the surface with Dencote primer 601 and filling with Elastomeric slurry seal @ 1.6 kg per 1000 Cucm with and including form work wherever required in taxi track complete all as specified and directed.

M&L for repairs to concrete pavements by cutting the damaged, spoiled edges in concrete pavements slabs to rectangular cross section with diamond tip cutters, removing all loose and foreign materials to a distance exceeding 500 metres but not exc 1 Kilometre, cleaning surface thoroughly with wire/coir brushes and then cleaning the surfaces with compressed air by compressors, priming the surface with Dencote primer 601 and filling with epoxy resin Denpatch and including form work wherever required in taxi track complete all as specified and directed.