Special repair of primary Runway (19L/01R) along with portion of secondary Runway (19R/01L) at junction of Rwy 19R/01L with Txy B and Txy E at NSCBI Airport, Kolkata

Amount

Providing and applying tack coat using bitumen emulsion (Rapid setting) complying with IS:8887, spraying the bitumen with mechanically operated spray unit at the rate specified below, cleaning and preparing the existing pavement surface as per specifications complete in all respects as per direction of Engineer-In-Charge. If the actual quantity of bitumen varies from the quantity specified, necessary cost adjustment for deviation in the quantity of bitumen shall be done as per rate in actual supply voucher from nearest refinery at the time of execution. The rate of bitumen exclusive of GST shall only be considered for payment. a) 0.20 Kg/Sqm on existing bituminous surface

Providing and laying of Hot Mix Semi Dense Asphaltic Concrete (SDAC) using crushed stone aggregate of quality, size and grading as specified and Hydrated lime as filler and Viscosity Grade Bitumen(supplied in bulk) in proportions as per job mix formula and laid to specified levels, grade and camber as per specification, drawings and as directed by the Engineer-in-Charge including compacting with 8-10 tonne, preferably vibratory road roller of adequate capacity to achieve the specified values of compaction, strength, surface accuracy complete [for tendering purpose VG bitumen of grade VG-30 content shall be taken as 120 kg/m3 of mix supplied in bulk produced by Govt. Refineries and 2% Hydrated lime (factory made) Not less than 80% Purity by weight of aggregates as filler material]. The necessary cost adjustment shall be made based on JMF and availability of filler.

Providing and laying of Hot Mix Dense Asphaltic Concrete (DAC) using crushed stone aggregate of quality, size and grading as specified and Hydrated lime as filler and Viscosity Grade Bitumen (supplied in bulk) in proportions as per job mix formula and laid to specified levels, grade and camber as per specification, drawings and as directed by the Engineer-in-Charge including compacting with 8-10 tonne, preferably vibratory road roller of adequate capacity to achieve the specified values of compaction, strength, surface accuracy complete [for tendering purpose VG bitumen of grade VG-30 content shall be taken as 135 kg/m3 of mix supplied in bulk produced by Govt. Refineries and 2% Hydrated lime (factory made) Not less than 80% Purity by weight of aggregates as filler material]. The necessary cost adjustment shall be made based on JMF and availability of filler.

Painting runway/taxi track/apron marking with adequate nos of coats to give uniform finish with road marking paint of superior make as approved by the Engineer-in-Charge, including cleaning the surface of all dirt, scales, oil, grease and other foreign material etc, and lining out complete, New work (Two or more coats)

Cutting the existing bituminous pavement concrete of runway upto required depth by milling machine with coveyor belt attachment and loading in tippers including disposal of materials(mechanically)within Airport Premises etc as directed by the Engg-in Charge. (Excluding cost of general cleaning which is taken in tack coat item)

Checking duct / pipe integrity, laid across runway / taxiway / apron / RESA / road for secondary cable section (from IT boxes to fitting) or for primary cable section (from IT box/ chamber/pit to IT box / chamber/pit) if there is any blockage and cleaing of blockage if required and practically possible by minor digging, cutting, fixing, marking, back filling etc. complete as required and submission of report.

Kerf cutting with machine in taxiway/runway/apron of PQC/bituminous surface of depth upto 90 mm and width upto 20 mm, using expansion joints / construction joints as far as possible, cleaning, drying, disposing FODs as directed including laying 1 or 2 nos secondary lead/LT cable, earth w ire ( generally conforming ICAO Doc- 9157, Part-5) by wrapping cotton tape with 50% overlapping, providing suiable sealant for airfield application i.e polysulphide or polyurethane as applicable, primar, backer rod (on top and bottom) - etc. complete as required along with arranging water bowser, mobile DG sets etc. complete as required to work in an operational airport.

Kerf cutting with machine in taxiway/runway/apron of PQC/bituminous surface of depth upto 110 mm and width upto 20 mm, using expansion joints / construction joints as far as possible, cleaning, drying, disposing FODs as directed including laying 3 or 4 nos secondary lead, earth wire (generally conforming ICAO Doc- 9157, Part-5) by wrapping cotton tape with 50% overlapping, providing suiable sealant for airfield application i.e polysulphide or polyurethane as applicable, primar, backer rod (on top and bottom) - etc. complete as required along with arranging water bowser, mobile DG sets etc. complete as required to work in an operational airport.

Supplying and laying of 1 run X 40 mm dia (OD), UV stabilized, HDPE pipe (PE- 100, PN-10) as per IS - 4984 with IS mark along with laying 4mm dia PP rope, accessories like socket, bend, couplers etc. complete with fitting, cuttings, jointing and clamping, sand cushioning etc. wherever applicable in the existing trench/soil/gravel area/along with PQC / DRLC work complete as required.

Supplying and laying of 1 run X 50 mm dia (OD), UV stabilized, HDPE pipe (PE- 100, PN-10) as per IS - 4984 with IS mark along with laying 4mm dia PP rope, accessories like socket, bend, couplets etc. complete with fitting, cuttings, jointing and clamping, sand cushioning etc. wherever applicable in the existing trench/soil/gravel area/along with PQC I DRLC work complete as required.

Supplying and laying of 1 run X 90 mm dia (OD), UV stabilized, HDPE pipe (PE- 100, PN-10) as per IS - 4984 with IS mark along with laying 4mm dia PP rope, accessories like socket, bend, couplers etc. complete with fitting, cuttings, jointing and clamping, sand cushioning etc. wherever applicable in the existing trench/soil/gravel area/along with PQC / DRLC work complete as required.

Supplying and laying of 1 run X 50 mm dia (OD), UV stabilized, HDPE pipe (PE- 100, PN-10) as per IS - 4984 with IS mark along with laying 4mm dia PP rope, accessories like socket, bend, couplers etc. complete with fitting, cuttings, jointing etc. below the ground (i/c Road crossing, Cement concrete Apron Area, Runway, taxiway) at a depth upto 6 m by horizontal directional drilling etc. complete as required after doing Ground Penetrating radar survey and submitting its report etc.complete as required.

Providing laying and fixing 6 SWG dia G.I. wire on surface or in recess along with existing surface/ recess conduit/ pipe/trench submain wiring/cable for loop earthing including termination etc.complete as required.

Making temporary arrangement to keep the Operation alive whenever required during this project etc as per directions of the Engineer In charge and in close corodination with the AGL maintenance team as per NOTAM and phasing of work for primary runway/ taxiway and secomdary runway by using existing materials ( which were dismantled for this work) like cables, fittings with lamps, isolating transformers and joints of cables as and when required, including removing temporary arrangement, fittings, fixing, co-ordination with maintenance team and engaging manpower well versed with Kolkata airport AGL etc. complete as required. Any unserviceability of the fittings during dismantling shall be made good. Providing any other materials like cable and fittings etc. whatever when dismantled materials are not enough for the purpose. Agency can take back these new material provided for temporary service after the completion of the project.

Holes cutting suitable for fixing HDPE pipe upto 50mm OD by use of gas cutter on wall of existing MS housing box etc. complete as required as directed by Engineer-In-Charge.

GPS based survey with Total Station of exisitng light fittings installations before dismantling and as when required survey for pipe ends, boxes, pipe routes and pin pointing fittings positions, fittings installations after bitumen work, station point marking, remarking, making the autocad drawing with co-ordinates etc. complete as required and submit the same to AAI in hard copies and soft copies.

Dismantling of existing shallow base of inset fitting by core cutting to avoid damage of the side surface, removal of secondary cable (if duct integrity fails), placing 4"x4” PVC box at pipe end, sealing the pipe end (light side) and backfilling with tack coat and hot mix SDAC, ramming, rolling, carry the shallow can to stores, keep them in safe custody and then making them good, chiselling out the concrete / polyeurethene from excavated shallow can etc. complete as required and handing back to AAI at the completion of the project / as decided by the EIC.

Providing and fixing blank plate on housing box of elevated fitting by fixing with suitable size bolts, removal of the same after bitumen work, taking back the plate, removal of bitumen, providing slope as per ICAO requirement, making the housing ready in all aspect for fixing elevated fitting etc. complete as required and handing back to AAI at the completion of the project / as decided by the EIC.

Dismatling of existing MS housing box like transformer housing box, adaptor box etc., carrying to stores, making them good, chiselling out the concrete / polyeurethene from excavated box, keeping in safe custody and handing back to AAI on completion of the project / as decided by the EIC etc. complete as required.

SITC of adopter Box of required size made of 6mm thick MS including welding to the existing box etc. complete as required as per site requirement and the direction of the EIC.

Core cutting at cement / asphaltic area like runways/ taxiways/ apron etc.at the designated location as per the existing fittings coordinates / design for 200 mm dia inset fittings upto the depth as per OEM of the lights and then upto the existing cable duct / pipe with 100 mm core cutting, arranging power supply with the help of DG sets and water arrangement , removing core and retrieving the pipe, at the bottom, cleaning, disposing debris upto 5 KM away, etc. complete as required including plugging the holes with wooden / ply board / PVC and handing over as ready for inset fittings installations etc. complete as required.

Core cutting at cement / asphaltic area like runways/ taxiways/ apron etc.at the designated location as per the existing fittings coordinates / design for 300 mm dia inset fittings upto the depth as per OEM of the lights and then upto the existing cable duct / pipe with 100 mm core cutting, arranging power supply with the help of DG sets and water arrangement , removing core and retrieving the pipe, at the bottom, cleaning, disposing debris upto 5 KM away, etc. complete as required including plugging the holes with wooden / ply board / PVC and handing over as ready for inset fittings installations etc. complete as required.

Design, Fabrication, supply of MS isolating transformer housing box of size 750(L)X350(W)X450 (D) or as per site requirement duly vetted by the Govt Engineering College / Univerisity for load bearing capacity of a rolling category-E aircraft made out of 6 mm (min.) thick MS sheet and counter sunk top cover 10 mm thick (min.) MS sheet, earth studs both for fittings and GI wires and ASD / TRF hanging arrnagement, cutting of holes etc. All inserts should be suitable for M-10 size bolt i/c supply of M 10 SS Bolts and nuts including painting of box with one coat of primer & two coats of black enamel paint and installation with concrete work / existing trench in soil / gravel along with water drainage connection at bottom, including sloping as per DGCA CAR requirement, pipe fixing, Final painting after installation, lettering, numbering and as per the direction of Engineer-In- Charge etc. as required.

Fabrication and supply of MS cable chamber with cover by MS tubular section/ MS square section/ MS flat/ MS plates including cutting to required length, welding, painting (one coat primar and two coats black enamel) and fixing the members to RCC/ Brick/ PCC/ prefabricated structure by use of fastner with base as per approved drawing duly vetted by the Govt Engineering College / Univerisity for load bearing capacity of a rolling category-E aircraft and as per the direction of Engineer-In-Charge etc. as required.

Excavation of the trench in hard rock or bitumenous / cement concrete of runways/taxiways / apron/RESA/ Road etc. by power saw cutting without disturbing the other area, upto 500mm in width, and depth upto 500mm, including getting out the excavated materials, cleaning the cut area and disposal of excavated debris as directed by Engineer-In-Charge within a lead of 5 KM including all machineries like power saw, hammer drill / pneumatic drill, water browser, mobile DG set, transportation etc. complete as required

Excavation of earth/soft soil mechanically (hydraulic excavator)/manually not exceeding 1.5 mtr in width, and lift at least 30 cm, including back filling, dressing, ramming and diSposin9 excess materials to a lead of 5 KM as required and as directed by the Engineer-In-Charge

Providing and laying in position cement concrete 1:2:4 (1 cement. 2 coarse sand 4 graded stone aggregate 20 mm nominal size) shuttering. sloping and surface finishing as per DGCA CAR / ICAO requirement etc. as required as per the site condition.

UNITED ROAD CONSTRUCTIONS PRIVATE LIMITED (BID ID -871739)