Construction of 10.5 meter wide link Taxi track Connecting Old Apron to the proposed FTO at Hubballi Airport. SH Civil Works

Amount

Excavation for taxiway, roadway etc. in all kinds of 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 with all lifts and lead upto 1000m

Preparation and consolidation of sub grade with power road roller of 8 to 12 tonne capacity after excavating earth to an average of 22.5 cm depth, dressing to camber and consolidating with road roller including making good the undulations etc. and re-rolling the sub grade and disposal of surplus earth with lead upto 50 metres.

Construction of sub-grade and earthern shoulders with approved material. The complete operation will include excavation of earth from borrow pits approved by Engineer-In-Charge within airport premises with all lifts & leads, transporting to site, spreading, grading to required slope and compacted in layers to meet requirement of more than 98% of MDD "Maximum Modified Standard Protractor density" as per MORTH specification and each compacted layer shall not be more than 200 mm thick & as directed by Engineer-In-charge. Agency has to test 03 (three) soil samples from approved borrow pits for Gotechnical parametres of soil through AAI Approved Lab / Govt Lab. Note: 1-Payment shall be made only for compacted quantity by level measurements. 2- Quoted Rates shall be inclusive of all above operations including testing charges of Geotechnical parametres of soil

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 Fixed form paver / Manual Method 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-3 class (Medium 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-3 class (Medium 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: 300 mm dia RCC pipes.

Painting runway / Taxi Track / Apron marking with adequate no. 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)

Demolishing cement concrete manually/ by mechanical means including disposal of material within 50 metres lead as per direction of Engineer - in - charge. Nominal concrete 1:3:6 or richer mix (i/c equivalent design mix)

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)

Brick work with common burnt clay F.P.S. (non modular) bricks of class designation 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)

Providing and fixing 'C' Class G.I. pipes (Heavy Duty) complete with G.I. fittings including trenching and refilling etc. 40 mm dia nominal bore

Providing and fixing gun metal gate valve with C.I. wheel of approved quality (screwed end) :40 mm nominal bore

Conducting Geotechnical investigation for arriving 'K' value (Modulus of Subgrade) at 03 (three) locations on subgrade of proposed FTO Taxitrack by Plate load test, as per relevent BIS code,Technical Specification etc., through Govt Engineering Colleges/ AAI Approved laborataries as per direction of Engineer-in-charge.