Extension and re-configuration of Apron Bays for Code-C type of Aircraft and allied infrastructure at Hubballi Airport.

Amount

Excavation for roadwork / apron / taxiway itc. in soil with hydraulic excavator of 0.9 cum bucket capacity including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross sections and transporting to the embankment location / disposal location within all lifts and lead upto 3000m.

Excavation for roadway / apron / taxiway etc. in ordinary rock with hydraulic excavator of 0.9 cum bucket capacity including cutting and loading in tippers, transporting to embankment site within all lifts and lead upto 3000 m, trimming bottom and side slopes in accordance with requirements of lines, grades and cross sections.

Dismantling of cement concrete pavement by mechanical means using pneumatic tools, breaking to pieces not exceeding 0.02 cum in volume and stock piling at designated locations and disposal of dismantled materials within all lifts and up to a lead of 3000 metres, stacking serviceable and unserviceable materials separately.

Dismantling of flexible pavements and disposal of dismantled materials all lifts and up to a lead of 3000 metres, stacking serviceable and unserviceable materials separately By Mechanical Means Bitumenous Courses

Consolidation of sub grade with power road roller of 8 to 12 tonne capacity including making good the undulations etc. and re-rolling the sub grade as per direction of Engineer-In-charge.

Construction of embankment with approved materials deposited at site from roadway / apron / taxiway etc. cutting and excavation from drain and foundation of other structures graded and compacted to meet requirement of table 300-2 Morth Specifications .

Preparation of granular sub-base by providing close graded material, conforming to specifications mixing in a mechanical mix plant at OMC, carriage of mixed material by mechanical transport to work site, for all leads and lifts, spreading in uniform layers of specified thickness with mechanical means including neatly leveling & dressing on prepared surface and compacting with vibratory power roller to achieve the desired density, complete and as per direction of Engineer-in-charge.

Providing, laying, spreading and compacting graded stone aggregate (size range 53 mm to 0.075 mm ) to wet mix macadam (WMM) specification including premixing the material with water at OMC in for all leads & lifts, laying in uniform layers with mechanical paver finisher/ Mechanical Grader in sub- base / base course on well prepared surface and compacting with vibratory roller of 8 to 10 tonne capacity to achieve the desired density, complete as per Technical specifications and directions of Engineer-In-charge.

Providing and laying dry lean cement concrete with coarse and fine aggregate conforming to IS:383, the size of coarse aggregate not exceeding 26.5 mm, aggregate cement ratio not exceed 15:1, aggregate gradation after blending to be as per specification, OPC 43 grade cement content not to be less than 150 kg/cum, optimum moisture content to be determined during trial length construction, concrete strength not to be less than 10 MPa at 7 days, mixed in a batching plant as per mix design, transported to site, laid with a paver with electronic sensor, compacting with 8-10 tonne vibratory roller, finishing and curing etc complete as per specification and direction of the Engineer-In-charge..

Providing and laying Pavement Quality Concrete (PQC) produced in a batching and mixing plant having a Characteristic flexural strength i.e. flexural strength of 4.1 MPa at 28 days using Ordinary Portland cement of 43/53 grade or Portland Pozzolana Cement or Portland Slag cement conforming as per relevant IS codes, to be mixed at Site, with 0.5% Super plasticizer by mass of cementitious material, fine aggregate, Graded stone aggregates of 40 mm nominal size in appropriate proportion as per Specification and job mix formula, laid in panels as per drawings/design as approved by the Engineer-In-Charge using Slip Form Paver including anti friction layer, joint filler board, making necessary provision for expansion, dummy and Construction joint including filling with Polysulphide sealant of approved make, curing and making profile, complete as per direction of Engineer-in-Charge and Techanical specifications. The item for execution shall include all operations making pavement for intended use but not limited to following: i. Polyethylene sheet (White in color) of thickness 400 micron conforming to IS: 2508 with 6mm thick fine sand layer. ii. Providing and laying in position for expansion joint, 25mm thick pre-cut Synthetic joint filler board of approved make conforming to IS:1838(part 3)-2011, 45 mm from top (to be removed at the time of filling of Polysulphide sealant). iii. Mechanically cutting dummy joints 3mm wide x 1/3rd thickness of slab which is subsequently widened to 10mm for the top 25mm depth and construction joints 10mm wide x 25mm deep as per specification.

iv. Providing and laying in position Polysulphide sealant of approved make conforming to BS-5212-1990 or IS: 11433-1995 in expansion/ construction / dummy joints including rounding off edges, applying 2 coats of approved primer compatible with the brand of Polysulphide and preparing the surface and applying masking tape along the edge of joint to prevent accidental spillage of sealant on top surface and to give neat finish to the sealant and removing the masking tape after application of sealant etc. as per the details below: a) Expansion Joints of size 25 mm wide and 10 mm deep over 30mm dia expanded closed-cell Polyethylene foam back-up/backer rod of minimum density 22 Kg/cum, as per manufacturer’s specifications and sketch at Appendix-‘A’. b) Construction Joints of size 10 mm wide and 10 mm deep over 12mm dia expanded closed-cell Polyethylene foam back-up/backer rod of minimum density 22 Kg/Cum, as per manufacturer’s specifications and sketch at Appendix-‘A’ c) Dummy Joints of size 10 mm wide and 10 mm deep over 12 mm dia expanded closed-cell Polyethylene foam back-up/backer rod of minimum density 22 Kg/Cum, as per manufacturer’s specifications ,and sketch at Appendix-‘A’ v) Making profile as per DGCA CAR, panel drawing showing dummy, construction, expansion joints location. Note:The quantity of cement, type of cement and super plasticizer for one Cum. Of Finished concrete specified are for tendering purpose only. The contractor shall quote his rates assuming quantity of OPC cement as 360 Kg/cum or 400 Kg of Portland Pozzolana Cement/ Portland Slag cement. In addition, if the actual quantity of cement & super plasticizer required as per laboratory mix design varies from the quantity assumed above, necessary cost adjustment for deviation in the quantity of cement and super plasticizer as per mix design, if any, shall be done as per the rate of cement and super plasticizer in actual supply voucher from manufacturer/authorized dealer at the time of execution. In the case of authorized distributor, the rate may be authenticated by the manufacturer. The rate of cement and super plasticizer exclusive of GST shall only be considered for payment.

Providing and laying Non Pressure NP-4 class (Heavy duty) R.C.C. pipes including collars/spigot jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 fine sand) including testing of joints etc. complete: 900 mm dia RCC pipes.

Providing and laying Non Pressure NP-4 class (Heavy duty) R.C.C. pipes including collars/spigot jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 fine sand) including testing of joints etc. complete: 600 mm dia RCC pipes.

Providing and laying Non Pressure NP-4 class (Heavy duty) R.C.C. pipes including collars/spigot jointed with stiff mixture of cement mortar in the proportion of 1:2 (1 cement : 2 fine sand) including testing of joints etc. complete: 450 mm dia RCC pipes.

Painting of Taxiway, /Apron marking with retro reflective road marking paint of superior make of Apco track/ Fast track WBR 3427 of Asian paint or equivalent with Air/ Airless spray applications including the application of high index glass beads (TTB 1325 type III and having refarctive index 1.90)of Potters /Plus 9 of Swarco make or equivalent . The painting shall be done for the existing Taxiway /Apron markings as per the recommended dimensions as per direction of Engineer -in-charge .The existing surface shall be cleaned thoroughly off dirt, dust, scales, oil grease etc. before application of the paint. (The painting to be applied should have a single coat coverage of @0.50 litre per sqm for paint and 500 grms per sqm for glass beades) One or more coats (of all Shades)

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:3:6 (1 Cement : 3 coarse sand (zone-III): 6 graded stone aggregate 20 mm nominal size )

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:2:4 (1 cement : 2 coarse sand (zone-III) : 4 graded stone aggregate 20 mm nominal size)

Providing and laying in position ready mixed or site batched design mix cement concrete for reinforced cement concrete work; using coarse aggregate and fine aggregate derived from natural sources, Portland Pozzolana / Ordinary Portland /Portland Slag cement, admixtures in recommended proportions as per IS: 9103 to accelerate / retard setting of concrete, to improve durability and workability without impairing strength; including pumping of concrete to site of laying, curing, carriage for all leads; but excluding the cost of centering, shuttering, finishing and reinforcement as per direction of the engineer-in-charge; for the following grades of concrete. Note: Extra cement up to 10% of the minimum specified cement content in design mix shall be payable separately In case the cement content in design mix is more than 110% of the specified minimum cement content, the contractor shall have discretion to either re-design the mix or bear the cost of extra cement. All works upto plinth leve Concrete of M30 grade with minimum cement content of 350 kg /cum

Steel reinforcement for R.C.C. work including straightening, cutting, bending, placing in position and binding all complete upto plinth level. Thermo-Mechanically Treated bars of grade Fe-500D or more

Brick work with F.P.S. (non modular) Flyash bricks of class designation 7.5 in foundation and plinth in: Cement mortar 1:6 (1 cement : 6 coarse sand)

12 mm cement plaster of mix : 1:6 (1 cement: 6 fine sand)

Structural steel work riveted, bolted or welded in built up sections, trusses and framed work, including cutting, hoisting, fixing in position and applying a priming coat of approved steel primer all complete

Providing and erecting 2.00 metre high temporary barricading at site; each panel of size 2.50mx2.00m made of 40x40x6mm angle iron or 50x50x3mm hollow MS tube posts/horizontal members/bracings covered with 1.63mm thick MS sheet. The sheet shall be fixed with 30x5mm MS flat by suitable welding/riveting. The panels shall be made so that gap of 50cm above the ground is available making overall height as 2.5m. MS channel ISLC 75 @ 5.70 kg/m, 50cm long shall be provided at the bottom having oval shaped holes of size 50x25mm at both ends with 50cm long MS angle 40x40x6mm bracing. Suitable arrangement shall be made to fix the barricading to avoid from overturning by providing 250mm long expansion fasteners at both ends. The work shall be executed as per drawing/direction of Engineerin- Charge which includes writing and painting, arrangement for traffic diversion such as traffic signals during construction at site for day and night, glow lamps, reflective signs, marking, flags, caution tape as directed by the Engineer-in-Charge. The barricading provided shall be retained in position at site continuously i/c shifting of barricading from one location to another location as many times as required during the execution of the entire work till its completion. Rate include its maintenance for damages, painting, all incidentals, labour materials, equipments and works required to execute the job. The barricading shall not be removed without prior approval of Engineer-in-Charge. (Note :- One time payment shall be made for providing barricading from start of work till completion of work i/c shifting. The barricading provided shall remain to be the property of the contractor on completion of the work).

Centering and shuttering including strutting, propping etc. and removal of form work for :Foundations, footings, bases for columns.

Centering and shuttering including strutting, propping etc. and removal of form work for : Walls (any thickness) including attached pilasters, butteresses, plinth and string courses etc.

Centering and shuttering including strutting, propping etc. and removal of form work for : Suspended floors, roofs, landings, balconies and access platform

Supply of following holed CI isolating transformer housing box, water tight round type, metal container of outside dia 330mm, height 450mm made of 10mm thick cast iron moulding all round, except the top surface which is 15 mm thick, cast iron moulding suitable to receive light fitting base plate on the top and having clear holes at side surfaces diametrically opposite, centre 75mm above bottom to receive one number each of 50mm dia C class GI pipe and check nuts as required. The box should have 2nos SS earth bolts M10*30mm tapped inside near the hole (4'' away from the hole centre) and having a drain hole at the bottom tapped to receive 15 mm dia B class GI pipe and having clear opening of 220mm at the top surface and 6nos M10 tapped hole as per specifications as required.

Single hole

Double hole

Installation of isolation transformer housing boxes in contrete (to be fixed along with concreting of apron/shoulder) with top projecting 20 to 25mm above finished apron surface, top sloped with 1:2:4 cement to match apron/shoulder level including providing and fixing of 250 mm long 15 mm dia.ISI marked "C" class GI pipe for drainage of water, fixing of 50mm dia GI pipe in respecive holes with double check nuts (one inside and one outside the box) including excavation of earth if required etc. complete as required. (ref. technical specification for more details)

Supplying and laying of 50mm size ISI marked C class GI pipe and accessories such as coupling, bends, PVC sleaves etc for taking AGL cable to the transformer housing box (to be fixed along with concreting of apron/shoulder) at a required depth to match the cable entry hole of isolation transformer housing box, cutting, threading the ends if required for connecting to housing box using check nuts etc. complete as required.

Supplying and laying of 150 mm size ISI marked C class GI pipe and accessories such as coupling, bends etc for taking AGL/power/control cable (to be fixed along with concreting of apron/shoulder or earth) at a required depth cutting, threading the ends if required etc. complete as required.

Supplying and laying of 25mm size ISI marked C class GI pipe including all accessories such as couplings bends etc for taking secondary lead wire from inset fittings to the transformer housing box installed outside the runway/taxiway shoulder in chase cut slots, cutting and threding of pipe if required, allignment of pipe including smooth bending of pipe to match the cable entry hole of inset housing box, fixing the pipe including connecting to inset light shallow box using coupling/connectors etc, closing the slot with cement concrete/suitbale chemical re filling after pipe laying to match the existing level as per requirement etc. complete as required.

Supplying and laying of 80 mm size ISI marked C class GI pipe and accessories such as coupling, bends etc for taking AGL/power/control cable (to be fixed along with concreting of apron/shoulder or earth) at a required depth cutting, threading the ends if required etc. complete as required.

NSC Projects Pvt. Ltd. (BID ID -869833)

Brahma Infra (BID ID -869850)

SRINIVASA EDIFICE PRIVATE LIMITED (BID ID -869932)

N S NAYAK AND SONS (BID ID -867787)

ANISH INFRACON INDIA PVT. LTD. (BID ID -869338)

NATIONAL INFRABUILD PRIVATE LIMITED (BID ID -869525)

BALAJIKRUPA PROJECTS PRIVATE LIMITED (BID ID -868511)