Special repair to runway taxi track and helipad including maint of shoulder and side drain at Manasbal Mil Stn under GE 970 EWS

M&L racking out old sealing compound from the old existing joints of size 26 to 30mm wide and 28mm deep(average) without disturbing the joint filler underneath including cleaning the joints portion thoroughly to ensure dust free using compressed air by air blower, and filling the existing joints with sealing compound grade 'B' after applying a coat of primer to vertical surfaces of concrete which are in the contact with the compound and finishing the joint properly leaving 3 mm gap from top surface of concrete complete all as specified and as directed.

All as per item No 01 above but size of joint is 21 to 25 mm wide and 20 mm average depth complete all as specified and as directed.

All as per item No 01 above but size of joint is 16 to 20 mm wide and 15 mm average depth complete all as specified and as directed.

M&L for cleaning the surface of Runway with wire brush and air compressor, making the surface free from dust and applying with and including two coats of polymer modified bitumen emulsion @ 0.50 Ltr/Sqm diluted in the ratio 1:1 (PME 0.25 litre and Water 0.25 litre in each coat) by spraying with mechanical sprayer complete and ensure uniform finish of runway complete all as specified and directed as per manufacture instruction complete all as specified and directed. Make:- M/S Hindustan coals Pvt Ltd (Product Name : HINMAT PLUS) or equivalent MES approved make as approved by GE. Note:- (a) Contracter must ensure and arrange necessary material to protect the painting lines, Runway lights on the Runway from the PME. If any damage occurs during currency of work contractor shall rectify the same at his own cost and arrangement without any extra cost to the department.

M&L preparing concrete / bituminous pavement by brushing surfaces of road and marking paint of approved colour applying two coats of water based Paint over a coat of primer (Conforming to IS-164-1981) White or Yellow exc 10 Cms width using automatic mechanical nozzle spray machine complete all as specified and directed.

M&L scarifying or picking gravelled, macadam or bituminous macadam surfaces in area ot not exceeding 400 sqm and exceeding 50mm and not exceeding 100mm deep and as stacking thereof complete all as specified and directed

M&L applying evenly a paving bitumen priming/tack coat with bituminous primer of grade VG-10 as the rate of 10 kg per 10 Sqm complete all as specified and directed.

M&L Bituminous premixed carpet, 30 mm consolidated thickness, with 0.27 cum of stone chippings mixed with 14.6 kg of bitumen binder of grade VG-30, rolled and compacted to required camber and gradient in Runway NLB surface and complete all as specified and directed

M&L premixed sand seal coat with 0.06 cum of sand mixed with 6.8 Kg of bitumen, applied and rolled to a uniform smooth surface with paving bitumen of grade VG-10 complete all as specified and directed

Demolition of brick work or stone/boulder masonry built in cement mortar including all quoins, arches, pillars etc but excluding ashlars facings dressed stone work and precast concrete articles, complete all as specified and directed.