Remarking of Runway Dispersal and certain repair to joints rigid and flexible pavement at AF Stn Jodhpur

Amount

NOTE FOR ITEMS NO. 02 TO 13 :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.

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 2 above but construction/dummy joints of dimension 16 to 24 mm wide and 40 mm deep and backup rod/strip of 16-25 mm dia complete all as specified and directed.

Ditto all as per item No 2 above but construction/dummy joints of dimension 10 to 15 mm wide and 30 mm deep and backup rod/strip of 13-18 mm dia complete all as specified and directed. Note for Srl item No 2 to 4 :- 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 Chipping 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 surfce 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.

M&L for 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 specifed) 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 (Sealing of joint shall be measured under respective item seperately).

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 complete all as specified and as directed by the Engineer -in - Charge.

M&L for cutting out flexible surface from existing joints of dimension 12mm wide and 25 mm deep, removing the debris from site by sweeping wire brushing, cleaning and applying a coat of bitumen primer to the sides and bottom of the joints and sealing with bitumen based sealant including backup rod conforming to IS 1834-1984, complete all as specified and directed.

M&L for preparation of old concrete/bitumen surfaces on rigid/Taxi track by brushing, washing, rubbing by gunny bags over 10 cm width or girth of any description and applying one coat of 1st quality exterior weather proof water base emulsion on lines, dashes arrows, letters etc any paint all as directed by Engineer-in-Charge.

All as per item No 9 above but n exc 10 cm width or girth all as directed by Engineer-in-Charge.

M&L for repair to potholes any depth, but area not exceeding 1 Sqm each including sweeping free from dust and mud, or water, scouring sunken surfaces in Runway/Taxi/Roads, paths etc., cutting around edges to at least 100 mm in depth, making good by applying cold emulsion and filled with instant road repairing bitumenous premix in hot condition including well rolled and compacted with 8 to 12 tonne power roller to required camber and gradient complete all as specified and directed by Engr-in-Charge.

S&F in repairs taxiway/runway sign board having UV protected face plate on one side size exceeding 1.0 Sqm but not exceeding 1.5 Sqm each consisting of non metallic materials support structure having min. tensile strength 4000 Kg/Sqcm impact strength of 139 Kg/Sqcm, and able to withstand wind speed of 30 m/s, with high intensity prismatic grade retro reflective sheeting as base and with cut out message (legends borders letters numerals etc) sign board frame shall fixed in frangible coupling embeded in PCC 1:2:4 type B1 block of size 15cm x 15cm x 15cm complete all as specified and directed by the Engineer-in-Charge.

S&F of 12mm twisted nylon rope having high abrasion resistance, UV rays resistance and melting point 260 degree fixed at a height of 15.00mtr from ground level complete all as specified and directed by the Engineer-in-Charge

Om Trading Corporation

D DEV COMPANY

SHAILENDRA B TULSANI

M.A. MUNSHI AND CO.