REPAIRS TO JOINT FILLING, ELASTOMERIC CONCRETE, EPOXY ETC ON RUNWAY, PTT DISPERSAL AREA AND TAXI TRACK IN TECH AREA AT AF STATION UTARLAI

Amount

M&L for cleaning and racking out the existing expansion joints sealed with sealing compound of polyurethane 25mm to 30mm wide and 35mm to 45mm deep by appropriate hand tools (chisel and hammer or 'L' hook including removing the existing sealing compound from the edges with knife or any other means such as chisel hammer and grinding or any tools without damaging the edges and sides of the joint and removing the loose particles using wire brush and hot compressed air and priming the sides and making the surface bitumen free as per the manufacturer's instructions, provision of de bonding strip (thickness shall be 20 to 25% more than the width of joint) at bottom of joint and sealed the joint with pitch free grey polyurethane sealant conforming to BS-5212 type-FB) having minimum movement accommodation factor (MAF) as 30 %. Minimum depth of the sealant above debonding strip shall be 10mm to15 mm and applying the masking tape on edge of joint to prevent accidental spillage of sealant and removing the masking tape after sealant is applied complete all as specified and directed. Note for Item No 1 to 17: (a) The contractor will give daily attendance in ATC alongwith rep of GE to note the requirement of repair work. (b) The contractor will ensure that minimum two skilled worker and approved make of materials are held to attend the complaint within 24 hours notice, failing which a penal recovery of Rs 5000/- per day for delay shall be affected and the work required shall be got completed by GE through other agency and cost of the same shall be borne by the contractor. (c) Primer and sealing compound shall be of same manufacturer and work shall be got executed through authorised applicator of the manufacturer. Specific note for Item No 1 to 5: Contractor shall furnish guranttee for 10 years on stamp paper for the joint filling against rectification of defects under his own expenses and arrangements.

All as per Item No 01 here-in-before but expansion joint of size 20mm to 25mm wide and 25mm to 35mm deep.

All as per Item No 01 here-in-before but constructuion joint of size 20mm to 25mm wide and 30mm deep.

All as per Item No 01 here-in-before but constructuion joint of size 25mm to 30mm wide and 30mm deep.

All as per Item No 01 here-in-before but dummy joint of size 15mm to 20mm wide and 30mm deep.

Raking out of sealing compound of any description from existing expansion joints of dimensions 25mm to 30mm wide and 25mm deep removing the debris from site, treating sides and bottom of the joints with primer refilling the joints with sealing compound grade 'B' removing spilled sealing compound if any with benzene carbon tetra chloride or kerosene oil complete all as specified and as directed.

All as per Item No 06 here-in-before but expansion joint of size 20 to 25mm wide and 25mm deep.

All as per Item No 06 here-in-before but construction joint of size 20 to 25mm wide and depth 30mm.

All as per Item No 06 here-in-before but construction joint of size 20 to 30mm wide and depth 30mm.

All as per Item No 06 here-in-before but dummy joint of size 15 to 20mm wide and depth 30mm.

M&L for cutting existing runway/taxi track at cracks and spalled edges upto a minimum depth 25 to 30mm by mechanical tools making grooves at cleaning through air blower/air blasting and applying propriety primer on the cleaned surface to obtain tack and finally filling in Elastomeric Concrete of make Fosroc chemicals/Chokesy chemicals Pvt Ltd/ CIPY Polyurethane Pvt Ltd/BASF India Ltd (Prepared by mixing Part A & Part B, adding fiberglass sand as per manufacturer's instructions and properly mixing in purpose made electrically operated mixer plant) to obtain a homogeneous mix and finally tooling the surface with hand tools to obtain a grooved textured finish including connected joints expansion/construction/dummy joint filling with sealing compound/polyurethane sealant complete all as specified and directed.

Alll as per Item No 11 here-in-before but depth 30 to 40mm.

M&L for cutting for existing loose patches/spelled edges of concrete pavements in square/rectangular shape n.exc average depth 25mm removing debris from sites and shaping the patch cleaning with broom and compressed air and and applying epoxy resin mortar of make Fosroc chemicals/Chokesy chemicals Pvt Ltd/CIPY Polyurethane Pvt Ltd/BASF India Ltd (prepared by mixing in the ratio by weight and adding quartz sand all as per manufacturer's instructions) over two coats epoxy resin primer to bottom and sides of prepared surfaces and including connected joints expansion/construction/dummy joint filling with sealing compound/polyurethane sealant complete all as specified and directed.

M&L for cleaning existing holes/cavaties with broom and compressed air surfaces area not exceeding 1Sqcm each of any shape and filling with epoxy resin mortar of make Fosroc chemicals/Chokesy chemicals Pvt Ltd/CIPY Polyurethane Pvt Ltd/BASF India Ltd , prepared by mixing all as per manufacturer's instructions complete all as specified and directed.

All as per Item No 14 here-in-before but surfaces area exceeding 1 Sqcm but not exceeding 2 Sqcm each

All as per Item No 14 here-in-before but surfaces area exceeding 2 Sqcm but not exceeding 4 Sqcm each

M&L for preparation of concrete surfaces by cleaning dust, dirt, muck, moisture, oil paint and all foreign materials/loose particles including grinding, roughening the surfaces and removing any laitance by light scabbing or grit-blasting or mechanical means using mechanical scrubber/grinder and providing 4 mm polyurethane based Elastomeric concrete mortar (PUB-3K) Marutipatchfix and equivalent (application time) pot life 30 minutes at 25 degree centigrade mixing the required quantity of liquid resin-Part-A (pre weighted pack) in to a clean plastic bucket and add the harder liquid Part B (pre weighted pack) approximately mix 2 minutes and add pre weighted powder of Part C (Pack) slowly, string thoroughly and continuously, continue mixing for 3 minutes until a uniform consistence is achieved when PUB-3K is an even gray colour and finishing by using of a texture brush/steel trowel as per manufacturer's instructions, complete all as specified and directed.

M/s godara infratech and power industries

M/s Malinath Electricals