REPAIR MAINTENANCE TO JOINT FILLING OF RIGID PAVEMENTS DISPERSAL AREA AND PAINTING TO PAVEMENTS PTT LINKS DISPERSAL AND CONNECTED AREAS OF PAVEMENTS IN TECHNICAL AREA AT AIR FORCE STATION TEZPUR UNDER GE AF TEZPUR

Amount

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 back up 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 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 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 back up 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 instructions and cleaning the surface,complete all as specified and as directed.

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,racking/cutting out defective portion of existing rigid pavement for depth not less than 25 mm from top surface of slab with the help of mechanical means/manually chiseling,making regular size,removing all debries to a distance exceeding 100 Metres but not 200 Metres from starting point,cleanining loose particles throughly the surface by means of air blower,applying a coat of primer uniformly on the horizontal and vertical faces with bristle brush as per manufacturer's instructions, pouring in pre-mixed elastomeric concrete (self levelling) on primed surface and finishing by means of trowels and flats,complete all as specified and directed. Notes:- (i) The surface to be finished true levelled with existing adjoining rigid pavement. (ii) Mixing of materials for elastromeric concrete shall be strictly as per manufacturer's instructions.

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) as per manufacturer's instructions, complete all as specified and directed.

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 not exceeding 10cm wide with one coat of water based acrylic paint (black) as per manufacturer's instructions,complete all as specified and directed.

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 not exceeding 10cm wide with one coat of water based acrylic paint (orange) as per manufacturer's instructions,complete all as specified and directed. Note:- (Applicable for BOQ Serial Item No.5,6 & 7) 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.

Clearing shrubs,vegetation,grass,bush,weed etc. from sides of runway, PTT, Links and Dispersal Area,including disposal of rubbish/ useless materials to a distance not exceeding 50 m and depositing where directed a level not exc. 1.5 m from the starting point, complete all as specified and directed. Notes:- (i) The work shall be executed by providing 01(One) Mazdoor (Unskilled category of worker). (ii) Duty hours register of the worker shall be maintained.

KAILSON

Shri A. K. Goswami

Evergreen Firm

M/S LAKSHMI ENTERPRISES

M/S N G CHOWDHURY

SHRI D. C. BISWAS

M/S Mandeep Singh