Repair to sign boards joints and cracks using epoxy resin mortar and elastromeric concrete of rigid portion at runway and links at AF Stn Jodhpur

Amount

NOTE FOR ITEMS NO. 02 TO 12 :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.

Supply and fixing in repairs taxiway / runway sign board having UV protected face plate on both sides not more than 1.0Sqm each consisting of non-metallic materials support structure having min tensile strength 4000.00 Kg/ Sqcm impact strength of 139.00 Kg/Sqcm, and able to withstand wind speed of 30m/s, with high intensity prismatic grade retro reflective sheeting as base and with cut out message (legends boarders letters numerals etc) sign board frame shall fixed in frangible coupling embedded in PCC 1:2:4 type B1 block of size 15cm x 15cm x 15cm complete all as specified and directed by Engr-in-Charge.

Supply and fixing in repairs taxiway / runway sign board having UV protected face plate on both sides size exceeding 1.00 Sqm but not exceeding 2.00 Sqm each consisting of non-metallic materials support structure having min tensile strength 4000.00 Kg/ Sqcm impact strength of 139.00 Kg/Sqcm, and able to withstand wind speed of 30m/s, with high intensity prismatic grade retro reflective sheeting as base and with cut out message (legends boarders letters numerals etc) sign board frame shall fixed in frangible coupling embedded in PCC 1:2:4 type B1 block of size 15cm x 15cm x 15cm complete all as specified and directed by Engr-in-Charge.

Supply and fixing in repairs taxiway / runway sign board having UV protected face plate on both sides size exceeding 2.00 Sqm but not exceeding 3.00 Sqm each consisting of non-metallic materials support structure having min tensile strength 4000.00 Kg/ Sqcm impact strength of 139.00 Kg/Sqcm, and able to withstand wind speed of 30m/s, with high intensity prismatic grade retro reflective sheeting as base and with cut out message (legends boarders letters numerals etc) sign board frame shall fixed in frangible coupling embedded in PCC 1:2:4 type B1 block of size 15cm x 15cm x 15cm complete all as specified and directed by Engr-in-Charge.

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 5 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 5 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 5 to 7 :- 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.

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 (Sealing of joint shall be measured under respective item separately).

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 10.00 above but n exc 10 cm width or girth all as directed by Engineer-in-Charge.

Material & labour for repair to cracks of width less than 4mm in flexible surfaces by cleaning of the cracks with coir brushes and make it free from dust and apply cold polymeric modified emulsion (PME) as primer coat (0.5 ltr per running meter) and first 50% of the crack/cavity filled with cold polymeric modified emulsion (PME) (1.5 ltr per running meter) and followed with mineral fillers (fibrous cum quartz powder) mixed with cement in 1:1 ratio in two coats to ensure complete filling / total filling of the gap through grouting pump in line with existing pavement finally dry coarse sand mixed with cement in 1:1 ratio sprinkled on top complete all as per manufacturer’s instructions complete all as specified and directed. Note :- The tenderer shall take into consideration the following points while quoting his rate for the above item :- (i) No price adjustment shall be applicable if excess quantity of cold modified emulsion (PME) than the mentioned above is used depending upon condition of the surface to be treated.

Om Trading Corporation

D DEV COMPANY