Extension of Apron and Allied Works at Madurai Airport

Amount

Civil & Electrical Works

Excavation in soil with hydraulic excavator including cutting & loading in tippers, trimming bottom and side slopes in accordance with requirement of line, grades and cross section and transporting and unloading to the disposal location(s) including levelling and neatly dressing of disposed soil completely as directed by Engineer-In-Charge with all lifts and lead within Airport Premises. All kinds of Soil

Excavation in ordinary rock with hydraulic excavator including cutting & loading in tippers, trimming bottom and side slopes in accordance with requirement of line, grades and cross section and transporting and unloading to the disposal location(s) including levelling and neatly dressing of disposed material completely as directed by Engineer-In-Charge with all lifts and lead within Airport Premises.

Demolishing cement concrete in pavement and like manually/ by mechanical means including disposal of material with all leads and lifts within airport premises including levelling and neatly dressing of disposed material completely as directed by Engineer-In-Charge.

Providing and laying in position cement concrete of specified grade excluding the cost of centering and shuttering - All work up to plinth level : 1:4:8 (1 Cement : 4 coarse sand (zone-III) : 8 graded stone aggregate 40 mm nominal size)

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

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

Providing and laying in position machine batched and machine mixed design mix M-25 grade cement concrete for reinforced cement concrete work, using cement content as per approved design mix, including pumping of concrete to site of laying but excluding the cost of centering, shuttering, finishing and reinforcement, including admixtures in recommended proportions as per IS: 9103 to accelerate, retard setting of concrete, improve workability without impairing strength and durability as per direction of Engineer-in-charge.“(Note :- Cement content considered in this item is @ 330 kg/cum.“Excess/ less cement used as per design mix is payable/recoverable separately). All works upto plinth level

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.

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 0.075mm) to wet mix macadam(WMM) specification including premixing the material with water at OMC in mechanical mix plant, carriage of mixed material by mechanical transport to site, for all leads & lifts, laying in uniform layers with mechanical paver finisher 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 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, 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 plant having a Characteristic flexural strength i.e. minimum flexural strength of 4.1 MPa at 28 days using 350 Kg of ordinary Portland cement of 43 grade, 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 making necessary provision for expansion joint, curing, etc. complete as per direction of Engineer-in-Charge and particular specifications. The item for execution shall also include the following operations: : 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. Filling Polysulphide sealant in dummy, construction and expansion joints including providing closed-cell Polyethylene foam back-up rod, and painting side of joints with Polysulphide primer, etc. complete (to be paid separately under item 15 and 16. Note: For the purpose of tendering, the quantity of cement used for one Cum. of finished concrete may be assumed as 350 Kg. If the actual quantity of cement required as per laboratory mix design varies from the quantity assumed above, necessary cost adjustment for deviation in the quantity of cement as per mix design, if any, shall be done as per the rate of cement 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 exclusive of GST shall only be considered for payment.

Providing and laying polythene sheet (white in colour) of thickness 400 micron conforming to IS: 2508, on the base course with overlaps of not less than 300mm longitudinally and 300mm transversely over and including a base layer of 6mm thick fine sand complete as per specifications and as directed by Engineer‐in-charge (Note- Only plan area shall be measured for payment)

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), complete as per particular specifications and directions of Engineer-in-charge. (Note: Mode of measurement shall be length of joint multiplied by depth of filler board including precut portion.)-unit m2

Providing and laying in position Polysulphide sealant of approved make conforming to BS-5212- 990 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. complete as per direction of Engineer in- Charge & particular specifications. [Note: For purpose of payment, quantity (Length x Width x Depth) of Polysulphide sealant only will be measured.] : Expansion Joints of size 25 mm wide and 10 mm deep over 30mm dia closed-cell Polyethylene foam back-up rod, as per manufacturers specifications and sketch at Appendix-‘A’.

Providing and laying in position Polysulphide sealant of approved make conforming to BS-5212- 990 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. complete as per direction of Engineer in- Charge & particular specifications. [Note: For purpose of payment, quantity (Length x Width x Depth) of Polysulphide sealant only will be measured.] : Construction Joints of size 10 mm wide and 10 mm deep over 12mm dia closed-cell Polyethylene foam back-up rod, as per manufacturers specifications and sketch at Appendix-‘A’. Dummy Joints of size 10 mm wide and 10 mm deep over 12 mm dia closed-cell Polyethylene foam back-up rod, as per manufacturer’s specifications and sketch at Appendix-‘A’.

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, i/c cleaning the surface of all dirt, scales, oil, grease and other foreign material etc. and lining out complete.New work (Two or more coats)

Providing and laying antiskid, antiglare 80 mm thick factory made cement concrete interlocking paver block of M -40 grade made by block making machine with strong vibratory compaction, of approved size, design & shape, laid in required colour and pattern over and including 50mm thick compacted bed of coarse sand, filling the joints with line sand etc. all complete as per the direction of Engineer-in-charge.

Taking out existing CC interlocking paver blocks from footpath/ central verge, including removal of rubbish etc., disposal of unserviceable material to the dumping ground, for which payment shall be made separately and stacking of serviceable material within 50 metre lead as per direction of Engineer-in-Charge.

Laying old cement concrete interlocking paver blocks of any design/ shape laid in required line, level, curvature, colour and pattern over and including 50 mm thick compacted bed of coarse sand, filling the joints with fine sand etc. all complete as per the direction of Engineer-in-charge. (Old CC paver blocks shall be supplied by the department free of cost).

Providing and laying non-pressure NP2 class (light duty) R.C.C. pipes with collars jointed with stiff mixture of cement mortar in the proportion of 1:2 (1cement : 2 fine sand) including testing of joints etc. complete : 250 mm dia. R.C.C. pipe

Supply of cast iron isolating transformer housing box, water tight round type, metal container of outside size 330mm dia. Height 450mm made up of 10 mm thick cast iron moulding all round, except the top surface, which is 15mm thick, cast iron moulding suitable to receive a light fitting base plate on the top and underground housing associated with transformer, power cable and having two holes opposite as per the site requirement at periphery, centre 75mm above bottom surface suitable to receive 50mm HDPE as required. The box should have two SS earth bolts of M10x40 mm tapped inside near the hole (4' away from the centre) and having drain hole at the bottom suitable tapped to receive 15mm dia. GI pipe and having clear opening of 220mm at the top surface and 06 nos. M10 tapped hole having centre to centre distance of 260mm alongwith bolts as required as per the drawings.

Installation of transformer housing box in bituminous pavement/ shoulder of apron with a base concrete of 1:3:6 of size 630 x630x100 mm thick 150mm thick top sloped with 1:2:4 cement concrete including excavation and refilling, if required and providing and fixing 150mm long 15mm dia. "B" class GI pipes with check nut for drainage of water, with proper alignment of CI boxes in such a way that the hole centres fall in straight line etc. complete as required.

Supply of 50 mm dia. ISI mark HDPE pipe of PN6 & PE80 grade with accessories etc. and as per relevant IS amended upto date complete as per site requirement.

Laying and fixing of 50mm dia. HDPE pipe in ground to connect consecutive existing transformer housing box at a suitable depth i/c fixing the socket, lock/check nut/ any other suitable accessories at both ends of transfer housing box wall to fix the pipe, supply and providing 8SWG GI wire etc. The laying shall be in bituminous pavement/ shoulder of apron, trenching upto required level for aligning the pipe with CI housing box refilling etc. as required as per direction of Engineer In- Charge.

JKG INFRATECH PRIVATE LIMITED

PRATHIEN INFRASTRUCTURES

Sree Venkateswara Road Constructions Pvt LTD

SRC Projects Private Limited