REPAIR TO JOINT FILLING AND POT HOLES IN TECHNICAL AREA

Amount

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,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 cracks on surfaces of rigid/flexible pavement (concrete or asphaltic) of runway,taxi track,links etc.cleaning the cracks from sides, bottom and removing the loose particle of sealant dust etc, with suitable tools and mechanical driven machine, drying the cracks surface of moisture completely by means of mechanical driven air blower and repair by putting in elastomeric,self-leveling sealant impregenated rope of size ¼ inches thick,melted with direct heat process, finished true levelled with existing adjoining pavement surface as per manufacturer's instructions,complete all as specified and directed.

Materials and Labour for,raking out existing cracks on surfaces of rigid/flexible pavement (concrete or asphaltic) of runway,taxi track,links etc.cleaning the cracks from sides, bottom and removing the loose particle of dust,dirt etc,with suitable tools and mechanical driven machine,drying the cracks surface of moisture completely by means of mechanical driven air blower and repair to crack by putting in elastomeric,self-leveling sealant crack filler rope of size ½ inches thick,melted with direct heat process, finished true levelled with existing adjoining pavement surface,as per manufacturer's instructions,complete all as specified and directed. Notes:- (Applicable for BOQ Serial Item No 3 & 4). (i) The sealant rope shall be designed to be inserted into the crack or joint cavity first and then melted with direct heat process.The modifier system contained in the sealant rope shall allow the material to withstand direct heat without experiencing degradation. (ii)The crack filler shall combine tenacious adhesive power with resiliency to protect against the infiltration of moisture or incompressible through repeated thermal cycles of expansion and contraction.It shall exhibit superior low temperature ductility, weather resistance, low oxidation breakdown and non-tracking. (iii) Repair to cracks shall be executed as per manufacturer’s instructions and shall be executed by the approved and trained applicator of manufacturer. (iv) Contractor is suggested to check crack at site before Quoting of Rate.

Materials and Labour for,cutting out defective portion of existing rigid pavement by mechanical means/manually chesiling, make regular shape and size, depth not less than 25 mm from top surface of slab,removing all debries to a distance , loose particle to be cleaned with mechanical air blower,applying a coat of primer uniformly on the horizontal and vertical faces with bristle brush pouring 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,cutting out defective portion of existing rigid pavement by mechanical means/manually chesiling, make regular shape and size, depth 25 mm to 50mm from top surface of slab,removing all debries to a distance exceeding 100 Metres and not exceeding 250 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. .

Racking out old sealing compound from existing joints/cracks 10-20 mm wide and 30 mm deep (approx), removing all foreign materials,primed and filled with sealing compound, Grade ‘B’,complete all as specified and directed. Note:- In case of additional depth beyond 30mm, the same shall be filled with dry sand before joint filling.

Materila and labour 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, complete all as specified and as directed.

Repair to pot holes in existing rigid/flexible pavement of dispersal/ runway/ PTT upto 20 mm depth and superficial area not exc.320 sqmm each, cleaning the pot hole with hand brushes or water under pressure and drying with compressed air etc. filling the pot holes with epoxy mixture of araldite and hardener, araldite 02 (Two) parts and hardener 01 (one) parts, complete all as specified and as directed.

Repair to pot holes in existing rigid/flexible pavement of dispersal/ runway/ PTT upto 30 mm depth and superficial area not exc.1260 sqmm each, cleaning the pot hole with hand brushes or water under pressure and drying with compressed air etc. filling the pot holes with epoxy mixture of araldite and hardener, araldite 02 (Two) parts and hardener 01 (one) parts, complete all as specified and as directed.

Repair to pot holes in existing rigid/flexible pavement of dispersal/ runway/ PTT upto 20 mm depth and superficial area not exc.1960 sqmm each, cleaning the pot hole with hand brushes or water under pressure and drying with compressed air etc. filling the pot holes with epoxy mixture of araldite and hardener, araldite 02 (Two) parts and hardener 01 (one) parts, complete all as specified and as directed.

Repair to pot holes in existing rigid/flexible pavement of dispersal/ runway/ PTT upto 30 mm depth and superficial area not exc.1960 sqmm each, cleaning the pot hole with hand brushes or water under pressure and drying with compressed air etc. filling the pot holes with epoxy mixture of araldite and hardener, araldite 02 (Two) parts and hardener 01 (one) parts, complete all as specified and as directed.

Demolition of cement concrete in Ground Floor n exc. 15 cm thick (un-reinforced) complete all as specified and directed.

M&L for 40 mm thick Cement Concrete type B-1 , 1:2:4 ( 20 mm graded aggregate) in sides of links on non-load bearing portion of runway including finishing surface even and smooth without using extra cement complete all as specified and directed.

Cutting/ Removal of vegetation and cleaning of sides of runway incl. removal from site and disposed off within 50 m distance by using mechanical grass cutting machine and cutting upto 1 cm height of grass to maintain the greenary of the sides of runway, PTT, Link and dispersal area,complete all as specified and as directed. .

Supply and Fix in repairs, sign board of size 1.20 m x 0.80 m made out of 12 mm thick PVC celuka board including pasting background of retro reflective sheet of high intensity grade type -IV on PVC celuka board, letters and arrow are made up of vinyl sheet on retro reflective sheet, the size of letter shall be of 40 cm height and width 24.80 cm or as proportionately, two nos post for the board shall be made up of PVC rectangular section 36 mm x 50 mm,1.20 metres height, two single sided lettering boards shall be fixed on both sides of post to form a composite both sided single unit including solvent adhesive and screwing and nailing for joint purpose, board shall be covered from top using 5 mm thick PVC Foam sheet, the material shall be of fire proofing, flexible to bear wind pressure and fragile in case of collision, including necessary excavation, grouted in PCC 1:3:6: Type C2 (30 cmx30 cmx30cm) ,letters in alternate board with alpbabets / numbers as (A to Z or 1 to 10 - both sides with arrow of 40 cm long complete all as specified and as directed. Note:- One letter as per requirement on both side of board including arrow shall be provided on each board, the requirement of letter shall be got approved by the Engineer-in-Charge.

Supply and Fix in repairs, single face lettering sign board of size 2.70 m x 0.80 m made out of 12 mm thick PVC celuka board including pasting background of retro reflective sheet of high intensity grade type -IV on PVC celuka board, letters,dashes and lines are made up of vinyl sheet on retro reflective sheet, the size of letter shall be of 40 cm height and width 34 cm, two nos post for the board shall be made up of PVC rectangular section 36 mm x 50 mm,1.20 metres height,board shall be covered from top using 5 mm thick PVC Foam sheet, the material shall be of fire proofing, flexible to bear wind pressure and fragile in case of collision, including necessary excavation, grouted in PCC 1:3:6: Type C2 (30 cmx30 cmx30cm) ,complete all as specified and as directed. Note:- Sizes of letters,dashes and lines shall be got approved from the Engineer-in-Charge.

Grinding incl cutting of edges with mechanically operated grinding machine for existing undulated rigid portion of runway and Dispersal and maintain proper finish with adjoining rigid surface, maintaining proper surface texture and surface condition and remove all debris/ material obtained after grinding to a distance n exc. 100 m and deposit where direcred. Note:- Surface of runway should not get any kind of damage during the process of grinding. Damages made if any shall make good by the contractor without any extra cost.

Cleaning of Drains by removing silt, taking out brick bats, Peebles, muds, clay, sludge etc from the bottam of drain and culvert bed and removing to a distance not exc 50 m and deposited where directed complete all as specified and directed.

M&L for old size class B bricks laid flat jointed in cement mortar (1:6) as in drian and pointed in cement mortar (1:3) after dismantling of bricks laid flat in floors, channels, kerbs,apron etc (each layer) pointed in any mortar complete all as specified and directed.

M&L for old size class B bricks laid on edge jointed in cement mortar (1:6) as in drian and pointed in cement mortar (1:3) after dismantling of bricks laid on edge in floors, channels, kerbs,apron etc (each layer) pointed in any mortar complete all as specified and directed.

M/S LAKSHMI ENTERPRISES

Singhs Construction

M/S L N ENTERPRISE

kabitaconstruction

M/S BARUA REFRIGERATION WORKS

M/S DHAR AND DHAR