REPAIRS TO JOINT FILLING AT MAIN TAXI TRACK INCL DISPERSAL AT AF STN KALAIKUNDA UNDER GE (AF) KALAIKUNDA .

Amount

M&L for preparing pavement joints by removal of (taking out) the existing sealant bituminous or any other compound to a depth as directed , by chiseling from the joints, cleaning the joint surface thoroughly and grinding side of joint with grinding machine to make the surface free from dust faces of bitumen or any other sealing compound without disturbing the pavement , then finally cleaning the joint with compressed air by air blower and vacuum cleaner etc . Providing backup material (polyprophylene backup rod) of suitable width 20 to 25 % more than width of joint as per available space in the pavement joints and also to maintain a depth (min 10 mm) to accommodate joint sealant as specified. Priming both sides of the joint surface upto the top level of backup material with specified primer and apply polyurethene base joint sealant properly leaving 3mm gap from top surface of concrete as per manufacturer's instruction using masking tape to avoid accidental spillage , size of joint is 26 to 30 mm wide and 50 mm average depth complete all as specifed and directed by Eng-in-charge. Note:- i)Tenderer attention is invited to the depth of pavement joint required to be cut, in case of extra cutting tenderer needs to make good with suitable filler as directed at his own cost. (ii) Filling of joints to be done 2 to 3 mm recessed during summer and in winter it should be filled upto top up.(iii) Fly wheel , spatula , trangular pallet Knife etc to be used to maintain the recess and to give aesthetics.

All as per item No 1.00 above but, size of joint is 21 to 25 mm wide and 44 mm average depth complete all as specified and as directed by Engr-in-Charge.

All as per item No 1.00 above but, size of joint is 16 to 20 mm wide and 38 mm average depth complete all as specified and as directed by Engr-in-Charge.

All as per item No 1.00 above but, size of joint is 10 to 15 mm wide and 32 mm average depth complete all as specified and as directed by Engr-in-Charge.

Repair to broken spalled edges of joints pot holes etc of existing concrete slab by forming square/rectangular grooves with diamond/Machine cutter wider towards bottom to from key with the existing quality concrete cleaning / dusting the grooves using compressed air to remove all dust and dirt by air blower and repairing with Tech floor mortar after applying epoxy primer Master prime -52 and applying one coat of Epoxy resin (Base & hardner Ratio 2:1) over epoxy mortor , finished complete all as manufacturer's instructions and as directed by Eng-in -charge (MAKE-CHOKSEY or equivalent).

M&L for racking out old sealing compound from the old existing joints of size 26 to 30 mm wide and 28 mm 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 6.00 above but, joint of size 21 to 25mm wide and 20 mm deep(average) complete all as specified and as directed by Engr-in-Charge.

All as per item No 6.00 above but, joint of size 16 to 20 mm wide and 15 mm deep (average) complete all as specified and as directed by Engr-in-Charge.

All as per item No 6.00 above but, joint of size 10 to 15mm wide and 15 mm deep (average) complete all as specified and as directed by Engr-in-Charge.

M&L for applying evenly a priming/tack coat with bitumen cold emulsion @ 10 Kg per 10 Sqm on flexible runway surface complete all as specified and as directed NOTE:- For all items item no. 1 to 10 , work will be carried out on non flying day/ non flying hours only and contractor have to provide barricading on working site as per direction of Engr-in-charge. No claim will be entertained due to any loss of working hours.

Ganguly Construction

M/s Antara

M/S Jamuna Traders

Lotas Engineers

GREEN TRADERS

MS R.K.ENTERPRISE

NATIONAL CONSTRUCTION CO

INDIA TRADE ENGINEERING