REPAIR TO RUNWAY, RUNWAY PAINTING AND OTHER CONNECTED WORKS AT AFS ZIRO UNDER GE (AF) TEZPUR

Materials and Labour for preparation of old painted surfaces of rigid/flexible pavement (concrete or asphaltic) of runway, taxi track, links etc., painting lines, dashes, arrows, figures, letters, etc. on roads, pavements and the like exceeding 10cm wide with one coat of water based acrylic paint (white/ yellow /orange/ black colour) as per manufacturer's instructions, complete all as specified and directed.

Materials and Labour for preparation of old painted surfaces of rigid pavement (concrete or asphaltic) of runway, taxi track, links etc.in areas exceeding 2000 Sqm applying one coat of water based acrylic paint (white colour) as per manufacturer's instructions, complete all as specified and directed.

Materials and Labour for preparation of surfaces of rigid/flexible pavement (concrete or asphaltic) of runway, taxi track, links etc., painting lines, dashes, arrows, figures, letters, etc. on roads, pavements and the like exceeding 10cm wide with two coats of water based acrylic road marking paint (white/yellow/orange) as per manufacturer's instructions, complete all as specified and directed.

Materials and Labour for preparation of old painted surfaces of rigid pavement (concrete or asphaltic) of runway, taxi track, links etc., painting lines, centre line, dashes, arrows, figures, letters, etc. on roads pavements and the like not exceeding 10cm wide with one coat of water based acrylic paint (Yellow / black colour) as per manufacturer's instructions, complete all as specified and directed.

Materials and Labour for preparation of old painted surfaces of rigid pavement (concrete or asphaltic) of runway, taxi track, links etc., painting lines, centre line, dashes, arrows, figures, letters, etc. on roads pavements and the like not exceeding 10cm wide with one coat of water based acrylic paint (Orange colour) as per manufacturer's instructions, complete all as specified and directed. Note:- (Applicable for BOQ Serial Item No.1 to 5) Preparation of surface and painting of the existing runway painthig shall be done carefully and the Debris to be removed simultaneously leaving No FOD so as to ensure that the Runway is available for operation immediately.

Materials and Labour for cutting out defective portion of existing rigid pavement for depth 25 mm to 50mm from top surface of slab by mechanical means/manually by chiseling, make regular shape and size, removing all debries to a distance exceeding 100 Metres but not exceeding 200 Metres form starting point, loose particle to be cleaned with mechanical air blower, applying a coat of primer uniformly on the horizontal and vertical faces with bristle brush, filling with epoxy resin mortar (1:5) one part of epoxy resin and five parts of Quartz sand as per manufacturer's instructions, on primed surface and finished by means of trowels and flats, finished true levelled with existing adjoining rigid pavement, complete all as specified and directed.

Materials and Labour for cutting out defective portion of existing rigid pavement for depth 25 mm from top surface of slab by mechanical means/manually by chiseling, make regular shape and size, removing all debries to a distance exceeding 100 Metres but not exceeding 200 Metres form starting point, loose particle to be cleaned with mechanical air blower, applying a coat of primer uniformly on the horizontal and vertical faces with bristle brush, filling with pre mixed elastomeric concrete (self levelling) as per manufacturer's instructions on primed surface and finished by means of trowels and flats, finished true levelled with existing adjoining rigid pavement, complete all as specified and directed.

Materials and Labour for raking out existing joint sealant from expansion joints with using appropriate tools and mechanical means for joints of size 20-25 mm wide and 20 mm deep of sealant including taking out compressible backer rod of dia 25-30 mm (Total depth 45-50 mm) from joints, cleaning the joints of sides, bottom and removing the loose particles of sealant dust etc., with suitable tools and mechanical driven machine, drying the joints surface of moisture completely by means of mechanical driven air blower, applying one coat of primer and insert compressible cross linked polyurethane form backer rod, closed cell, medium density of appropriate dia as per site condition, putting in polyurethane joint sealant of approved make in joints as per manufacturer's instruction, and cleaning the surface, complete all as specified and as directed.

Materials and Labour for raking out existing joint sealant from Construction/ Dummy joints with using appropriate tools and mechanical means for joints of size 10-12 mm wide and 10 mm deep of sealant, including taking out compressible backer rod of dia 12-15 mm (Total depth 22-25 mm) from joints, cleaning the joints of side, bottom and removing the loose particle of sealant dust etc, with suitable tools and mechanical driven machine, drying the joints surface of moisture completely by means of mechanical driven air blower, applying one coat of primer and insert compressible cross linked polyurethane form backer rod, closed cell, medium density of appropriate dia as per site condition, putting in polyurethane joint sealant of approved make in joints as per manufacturer's instruction, and cleaning the surface, complete all as specified and as directed.

M&L for repair of cracks (1 to 3 mm) over rigid pavement of runway with epoxy mixture of araldite and hardener, araldite 02 (Two) parts and hardener 01 (one) parts pouring over the visible cracks and allow to infiltrate inside the cracks to fill up the gap inside, complete all as specified and as directed. Note : Running length will be used for measurement.