REPAIR TO RIGID FLEXIBLE SURFACE OF RUNWAY, LINKS INCLUDING RE-FIXING OF STOP BARS ETC AT AIR FORCE STATION JODHPUR

Amount

M&L for raking out sealing compound from existing expansion joints of dimension 25 mm to 30 mm wide and 45 mm deep, removing the debris from site by sweeping the concrete surface with brooms, cleaning with compressed air, treating sides and bottom of the joints with primer as per manufacturer's directions and filled with preformed closed cell polyethylene backup rod/strip of 25-32 mm dia, sealing with pitch free polyurethane grey sealant (minimum depth of sealant above backup rod shall be 10 mm) conforming to BS-5212 (Type FB) and applying masking tape on edges of joints to prevent accidental spillage of sealant and removing the masking tape after application of sealant complete all as specified and directed.

Ditto all as per item No 1 above but construction/dummy joints of dimension 16 to 24 mm wide and 40 mm deep and backup rod/strip of 16-25 mm complete all as specified and directed.

Ditto all as per item No 1 above but construction/dummy joints of dimension 10 to 15 mm wide and 30 mm deep and backup rod/strip of 13-18 mm complete all as specified and directed. Note for Srl item No 1 to 3 :- Incase of any variation in width or depth of joint, the same is deemed to be included in quoted rates by the contractor as in Sch 'A'/BOQ items as above. The contractor shall not be entitled for any extra claim on this account.

M&L for clearing/cutting bushes, scrubs, grass, vegitation from side/berms of storm water drains by and runway shoulders and adjoining area by manual means including transport for removing the same to out side MoD land complete all as specified and as directed.

M&L for raking out of bituminous compound from existing joints of dimension (appx) 12mm wide and 25 mm deep on flexible surface, removing the debris, dust, grease, any previous sealants and foreign material clean thoroughly the surface by wire brushing, compressed air, grit blasting or grinding, ensure dried and cleaned bonding surface in all joints and treating sides and bottom of the joints with primer as per manufacturer's directions filled with preformed closed cell polyethylene backup rod/strip of size as per joint width, sealing the joints with MarutiSeal PU 2K-Black or equivalent as per manufacturer’s directions. Material shall conforming to BS 5212 : 1990, EN-14187-P-5 and IRC 57-2006, complete all as specified and directed.

Material and Labour for re-fixing of stopbar lights (dia 200 mm to 250 mm and depth 150mm to 300 mm) in PQC(depth up to 350mm) by forming / cutting core using diamond core cutter of dia 200 mm to 250 mm and up to full depth of PQC, refilling of the remaining gap with elastomeric concrete ( mix shall be prepared as per manufacturer’s instructions) after cleaning the dirt, all loose material fanned with air blower and applying primer on the surface, forming joint of width 25 to 30mm and depth up to 100mm of length up to 23.5 meter for laying PVC pipe for passing cables for power supply to stopbar lights and joint of width 10mm and depth up to 50mm for laying cable from conduit to stopbar light using diamond cutter and filled the gap with polyurethane sealant (Minimum depth of sealant 20 mm ) after fixing 30 mm dia polythene backup rod for 25 to 30 mm wide joint and 12mm dia polythene backup rod for 10mm wide joint priming the sides and applying masking tap on edge to prevent accidental spillage of sealant on top surfaces and to give neat finish to the sealant in position as required complete all as per manufacturer's instruction as specified and directed. Note :- (i) The stopbar lights will be supplied by the user and cost of same not included in the item. (ii) The quoted rate deemed to be included for making good to edges of PQC around stopbar lights.(iii) The quoted rate shall included cost of forming / cutting core using diamond core cutter ,refilling of the remaining gap with elastomeric concrete, forming/cutting required joints for laying supply cable to the stopbar lights using diamond cutter, polyurethane sealant, primer, polythene backup rod, masking tap, etc. (iv) The cost of PVC pipe, power cables and cable connectors shall be measured and paid separately.

Supply & fixing for laying of Secondary cable used in runway lighting system of 5KV,6.6A ,4Sqmm single core multi stranded copper cable in pvc conduit of size 25mm.cable should have impedance of 50M ohm, complete all as specified and directed. Note : PVC conduit shall be measured and paid separately vide item No. 9.

Supply & fixing secondary cable connector male and female combined used in Air Field Lighting system suitable for cable size 4 sqmm single core 5KV,6.6 A complete all as specified and directed.

Supply & fixing PVC pipe of size 25mm for laying of secondary cable used in Air Field Lighting System complete all as specified and directed.

Material and Labour Chipping and/or neatly Cutting of existing loose concrete at cracks on Runway/Taxi track/ pavement by using diamond cutter. Cutting of cracked portion shall not be less than 100 mm wide and 45 mm deep. Cleaning the dirt and all loose material fanned with air blower and air blasting the cleaned surface applying proprietary primer on surfaces to obtained tack and finally filling in Elastomeric Concrete, (Mix shall be prepared as per manufacturer) to obtained a true surface and finally tooling the set surface with hand tools complete all as specified and directed. Note :- (i) The rate shall be include for providing masking tape at joints and formwork required if any at spalled joints edges. (ii) The quoted rate deemed to be included for making good to disturbed joint filling around the area where material is applied. (iii) All material shall only be procured directly from manufacturer.

Material and Labour Cutting existing loose patches / spalled edges of concrete pavement in square / rectangular/ triangular shape to a depth not less than 25mm removing debris out side MD land sweeping the patches with broom, cleaning with compressed air and applying epoxy resin mortar (proportion as specified) incl necessary form work for sides of joints, sprinkle , a thin layer of dust free fine sand (QUARTS SAND 10 No) and applying a coat on top of surface with epoxy resin primer @ 0.45 Kg/Sqm and finally filling the joints with sealing compound complete all as spd and as directed by Engr-in-Charge. NOTES FOR ALL ABOVE ITEMS:- The work will be carried out as per user requirement from 1830 hrs to 0600 Hrs. The deployment of labour and T&P arrangement on the Runway shall be intimated to the contractor lby 0800 Hrs each day in the moring. The contractor has to provide necessary arrangement such as lights etc and quote the rate accordingly for considering late working hours at night. Nothing extra will be paid on this account. In any emergency condition the all T&P and material should EXIT/REMOVE from the runway in less than 4 mins without leaving any FOD.

ABHOG INFRASTRUCTURE PRIVATE LIMITED

D DEV COMPANY