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

Earth work excavation by mechanical means (Hydraulic excavator of 0.9 cum bucket capacity) in all kinds of soil (excluding hard rock) including cutting and loading in tippers, trimming bottom and side slopes, in accordance with requirements of lines, grades and cross sections, transporting and unloading to the embankment/ filling location within all lifts and lead within Airport Premises as directed by Engineer-in-Charge.

Construction of Embankment with moorum of minimum CBR 12% in layers not exceeding 20 cm in depth, breaking clods, watering, rolloing each layer with compactor /vibratory roller of minimum 8-12 tonne capacity including levelling to the required grade and camber dressing etc. to achieve relative compaction as per Technical Specifications and as per IS 2720(Part-8) and as per MORTH specification, and as per direction of the Engineer-in-charge. (Payment to be made for compacted quantity only).

Providing, laying, spreading and compacting graded stone aggregate to wet mix macadam specification including premixing the Material with water at OMC in mechanical mix plant carriage of mixed Material by tipper to site, laying in uniform layers withgrader in sub- base / base course on well prepared surface and compacting with vibratory roller to achieve the desired density. Laying Using Grader

Construction of dry lean cement concrete Sub- base over a prepared sub-grade with coarse and fine aggregate conforming to IS: 383, the size of coarse aggregate not exceeding 25 mm, aggregate cement ratio not to exceed 15:1, aggregate gradation after blending to be as per table 600-1, 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, transported to site, laid with a paver with electronic sensor, compacting with 8-10 tonnes vibratory roller, finishing and curing.

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 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) derived from natural sources : 6 graded stone aggregate 20 mm nominal size derived from natural sources)

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 up to a lead of 2000 metres, stacking serviceable and unserviceable materials separately

Dismantling of flexible pavement (bituminuous courses) by mechanical means and disposal of dismantled material up to a lead of 1 kilometre, as per direction of Engineer-in-charge.

Centering and shuttering including strutting, propping etc. and removal of form for all heights: Foundation, footing, bases of columns etc., for mass concrete.