REPAIR TO JOINT AND CRACKS IN RIGID PAVEMENT WITH ELASTOMERIC CONCRETE INCLUDING CONNECTED ITEMS OF WORKS AT AF STN BHUJ

M&L for cleaning and racking out the existing sealing compound (Polyurethane sealant) from existing expansion joints 25mm to 30mm wide and upto required depth by appropriate hand tool (Chisel and hammer or L hook) including removing the existing sealing compound from the edges with knife or anyother means such as chisel and hammer and grinding tool without damaging the edges and sides of the joints and removing the loose particle using wire brush and hot comprssed air and priming the sidesof joints as per manufactures instruction, provision of 30 to 35 mm thick polyethylene back up rod or appropriate de bonding strip at bottom of joints and sealing the joints with 15mm (minimum depth of sealant) pitch free grey polyurethane sealant confirming to BS-5212 type FB and applying masking tape on edges or joints to prevent accidental spillage on top of surface and to give a neat finish to the sealant and removing the masking tape after sealant applied, the sealant should have MAF (+/-) 30 and warrenty as per manufacturers as uses in international Air Port in India. complete all as specified and as directed by the Engr-in-Charge.

M&L for cleaning and racking out the existing sealing compound (Polyurethane sealant) from existing Dummy/construction joints) 8mm to 10mm wide and upto required depth by appropriate hand tool (Chisel and hammer or L hook) including removing the existing sealing compound from the edges with knife or anyother means such as chisel and hammer and grinding tool without damaging the edges and sides of the joints and removing the loose particle using wire brush and hot comprssed air and priming the sides of joints as per manufactures instruction, provision of 10 to 12 mm thick polyethylene back up rod or appropriate de bonding strip at bottom of joints and sealing the joints with 10 mm (minimum depth of sealant) pitch free grey polyurethane sealant confirming to BS-5212 type FB and applying masking tape on edges or joints to prevent accidental spillage on top of surface and to give a neat finish to the sealant and removing the masking tape after sealant applied, the sealant should have MAF (+/-) 30 and manufacturers warrenty as per manufacturers as uses in international Air Port in India complete all as specified and as directed by the Engr-in-Charge.

M & L for removing damaged Armour filler board from Joints in concrete pavement and supply and fix 25-35 mm thick polythene foam (Armour filler board) in expansion joint all as specified and as directed by Engr-in-Charge.

M&L for repairing pot holes / patches/cracks etc in existing cement concrete pavements by cutting out damaged portion around the pot holes with mechanical equipment into regular shape, 20 to 25 mm deep, removing the loose material cleaning the cut out portion with compressed air to remove all foreign materials like dust, dirt, loose aggregates etc and dispose to a distance exc 250 metre but n.exc 500m and, priming the pot holes/ patches/ cracks with primer recommended by manufacturer and filling with elastomeric concrete all as specified and directed by Engineer-in-Charge. Make: Chokesy Chemical (Product Name "Flex O Patch") or equivalent product of make as specified in contract.

M&L for repairing pot holes/ patches etc in existing cement concrete pavements by cutting out damaged portion around the pot holes with mechanical equipment into regular shape, 15 to 20 mm deep, removing the loose material to a distance exc 500 metre but n.exc 1000 m and cleaning the cut out portion with compressed air to remove all foreign materials like dust, dirt, loose aggregates etc, priming the pot holes/ patches with epoxy primer and filling with heigh strength epoxy concrete all as specified and directed by Engineer-in-Charge. Make: Choksey chemical or equivalent of make specified in contract.

M&L for cutting of grass manually and removal of materials/debris obtained from cutting and cleaning of both sides of runway, PTT near DTGM board, Links, taxi tracks and other airfield areas, including collection, removal and disposal of grass, weeds and other unwanted materials, complete in all respects and as specified and directed by the Engineer-in-Charge. Notes:- (i) The Contractor shall arrange and deploy daily a minimum of 04 Nos. of labourers at site daily from 0900 hrs to 1700 hrs, including a 30-minute lunch break, for execution of the work . Additional labours shall also be made available as and when required by the Engineer-in-Charge/ User for urgent/ operational requirements. (ii) The Department shall have the right to stop, suspend or restrict the work at any time due to security requirements, operational commitments, airfield movement or any other exigency, as considered necessary by the competent authority. The Contractor shall comply with such directions without any claim on this account. (iii) The Contractor shall provide all necessary tools, implements, equipment, personal protective equipment (PPE) and other resources required for execution of the work. (iv) The Contractor shall ensure that the work is carried out without obstructing or adversely affecting airfield operations, aircraft movement or safety requirements, and shall immediately remove all cut grass, debris and other materials generated during the work from the operational area.

M&L for ploughing of soft ground arrester area in the pattern prescribed by the Engineer-in-Charge, including deployment of tractor fitted with Jungle Jim/plougher, complete with driver, for ploughing of the soft ground arrester area and cutting of grass around runway and taxi tracks, all as directed by the Engineer-in-Charge. Notes:- (i) Payment shall be made for each hour or part thereof for which the tractor is actually deployed and the work is executed at site. A proper log book shall be maintained by the Contractor and duly signed by the user/ representative, JE/ Engineer-in-Charge and Contractor. The log book shall be kept on record with the Engineer-in-Charge and produced for verification whenever desired by the GE. Stationery required for maintaining the log book shall be provided by the Contractor. (ii) In case of urgent requirement by the User, the Engineer-in-Charge may direct deployment of additional tractors fitted with Jungle Jim/plougher, complete with driver, for execution of the work. The Contractor shall arrange and provide such additional tractors with Jungle Jim/ plougher and driver as and when directed by the Engineer-in-Charge, without any additional claim other than payment for the actual hours of deployment as admissible.

Providing and operating bush cutter, complete with operator and suitable bush cutter blade, for cutting/ scrapping of grass, shrubs, bushes and other vegetation around airfield lights, sign boards, drains and other airfield installations, including collection, loading, removal and disposal of the rubbish/material generated from the site to outside MoD land, complete in all respects and as specified and directed by the Engineer-in-Charge. Note:- (i) The bush cutter, operator, fuel, lubricants, blades and all other accessories/ consumables,personal protective equipment (PPE) and other resources required for execution of the work shall be arranged and provided by the Contractor. (ii) Additional bush cutters shall be deployed on User's requirement basis as and when directed by the Engineer-in-Charge. (iii) All debris, cut grass, shrubs and other waste generated during execution shall be removed immediately from the airfield area and disposed of at a location upto 100 meter as directed by the Engineer-in-Charge.

Deployment of JCB for levelling and grading of runway shoulders, overruns, taxiway shoulders and other airfield areas, including removal/ clearing of loose soil, debris, vegetation, FOD and other obstructions, filling of minor depressions and dressing of ground to provide a uniform surface with the required slope and proper drainage, without causing damage to existing pavement, airfield installations, underground services or drainage arrangements, complete as specified and directed.

M&L for repair of potholes in existing bituminous pavement having depth exceeding 30 mm and up to 40 mm, using solvent-free, pre-formed granular bituminous pavement repair material suitable for heavy-duty road pavement, capable of being heated and melted in situ by propane gas burner or asphalt cooker, including cleaning and preparation of pothole, removal of loose/ damaged material, ensuring a clean and dry surface, placing and filling the granular repair material to the required level, heating/melting uniformly, compaction and finishing flush with the adjoining pavement, surface level checking, removal of surplus material, cleaning and FOD removal, and making the repaired area ready for traffic immediately after completion, including all labour, materials, propane gas/fuel, tools, plant, equipment, transportation, loading/unloading and all incidental operations complete as directed by the Engineer-in-Charge.