REPAIR TO SURFACE TOPPING, EXPANSION,CONSTRUCTION AND DUMMY JOINTS ETC AND OTHER CONNECTED WORKS ON RUNWAY SURFACE AT AF STN NAL

Amount

Repairs to concrete pavements by cutting the damaged, spoiled edges in concrete pavements slabs to vertical rectangular cross section with power driven concrete cutters, removing all loose and foreign materials to outside of containment area , cleaning surface thoroughly with wire/coir brushes and then cleaned the surfaces with compressed air by air blower compressors ,including priming the surface with suitable primer and filling with epoxy mortar @ 2 Kg per 1000 Cu.cm after and including form work wherever required all as specified and as directed. Make :- SIKA India Pvt Ltd , FOSROC Chemicals / NEW GURBINDER INDUSTRIES ,NEW DELHI

M&L complete removal of detorated /eroded top surfaces ( epoxy or concrete surface ) with wire / coir brushes and with suitable power driven concrete cutters up to thickness 03 to 04 mm and then cleaned the surfaces with compressed air by using air blower compressors to remove all loose dirt, dust, scaling, grease, spots etc, priming the surfaces with epoxy based primer etc (with suitable brushes ) complete all as specified and directed. Make :- NEW GURBINDER INDUSTRIES ,NEW DELHI /SIKA India Pvt Ltd , FOSROC Chemicals

Applying Epoxy repair mortar on primed surfaces with thickness varying from 3.00mm to 4.00 mm including filling of small holes up to 10 mm depth @ 8.00 kg per sqm and levelling the surfaces to match the existing level with existing surfaces of the runway / Taxi track complete all as specified and directed. Make :- NEW GURBINDER INDUSTRIES ,NEW DELHI /SIKA India Pvt Ltd , FOSROC Chemicals

M&L for making good the cracks and repairing disintegrated / spoiled concrete slabs to vertical rectangular cross section with power driven concrete cutters, removing all loose and foreign materials to outside of containment area , cleaning surface thoroughly with wire/coir brushes and then cleaned the surfaces with compressed air by air blower compressors and filling with Elastomeric concrete after application of specified primer and removal of rubbish to a distance exc 250m and not exc 500m and depositing , complete all as specified and as directed. Note: i) All necessary formwork, sides etc shall be included in the quoted rates. ii) Primer used shall be of the same make as of elastomeric concrete.

Raking out existing Sealing compound from expansion Joints of size 20 mm to 25mm wide and up to a depth of 30 mm from existing Flexible/concrete pavements and spilled sealing compound from the edge of expansion joint removing the old sealing compound and all foreign material to a distance of 100 mtr and depositing as directed by Engr-in-Charge, cleaning and preparation of existing expansion joint , priming the sides and bottom of expansion joints with primer for Grade B sealing Compound and Sealing the expansion joint 20mm to 25mm wide and 25 mm deep (leaving a clear space of 5mm at top in winter and 3 mm top in summer with sealing compound Grade B heat resistance complete all as specified. Make Shalimar Tar Products / New Gurbinder Industries /M/s M K Petro Industries.

Ditto as above item no 05 but for construction joints of size 10 to 14 mm but up thickness 30 mm .

Ditto as above item no 05 but for contraction joints ( dummy) of size 08 to 10 mm but up thickness 65 mm .

Raking out existing filling in expansion Joints of width exceeding 20mm but n exc 25mm And required depth as specified by special tool like concrete cutter , wire/coir brushes / machines and joints cleaned throughly with application of compressed air , making free from all the loose material ie; dirt , dust, grease , existing sealing compound ,filler board , (as required) including sticked material of existing compound racked up to full depth ( up to 45 mm ) of Joints etc to entire satisfaction of Engr-in-Charge and filling the joint with the polyurathene joint sealant single compound component using mechanical means to a depth exceeding 08 mm but n exc 12 mm ( depth above the backup Rod ) with minimum performance guarantee of 10 years and minimum movement accommodation factor ( MAF) +/- 30 % confirming to the requirement of BS-5212 and EN-141575-2003 for hydrolysis /water resistance test including two coats of primer and filling the balanced racked depth of the joint with backup material ie; closed cell polyethelene to ensure tight packing so that no gaps or void exist at the top of backup material separated by bond breaker of suitable size HD 10 filler board in position where required and applying masking tape on edge of joint to prevent accidental slippage of sealant on top surface to give a neat finish to the sealant and remove the masking tape after sealant is applied as required complete as per manufacturer's instructions and complete all as specified and directed.

All As per serial item No 8 Above here in before but construction joints of size 12 to 14 mm wide and 25 mm depth .

All As per serial item No 8 Above here in before but contraction (dummy ) joints of size 8 to 10 mm wide and 25 mm depth .

M & L for repair to pot holes on concrete portion of runway/PTT/Taxi Track of size not exc 4 Sqcm and depth not exc 1.5 cm and filling with elastomeric concrete over and including priming of pot hole surface with suitable primer of same make including preparation of old detorated concrete surface by removing loose disintegrated concrete and blowing with mechanical/electrically driven air blower complete all as specified and directed. Note:- The Cost of T & P required for preparation of pot holes are inclusive in the quoted rate, the tenderer shall keep this aspect in mind before quoting their rates.

Ditto all as above item No 11 size exc 4 Sqcm but not exc 6 Sqcm and depth upto 2 cm complete all as specified and directed.

Demolition of cement concrete (Unreinforced) in of any description and in any position not otherwise specifically provided for complete all as specified and directed. Note: The demolished material shall be disposed off out side of MoD land. The contractor shall quote his rates considering this aspect.

Material and labour 75mm thick PCC 1:4:8 type D-2 ( using 40mm graded aggregate) as in sub base of flooring all as specified and directed.

Material and labour 100mm thick PCC 1:4:8 type D-2 ( using 40mm graded aggregate) as in sub base of flooring all as specified and directed.

Material and labour 100mm thick PCC 1:2:4 type B-1 ( using 20mm graded aggregate) as in flooring complete all as specified and directed.

Finishing surface to concrete roads, pavements, by brooming, complete all as specified and as directed.

M & L for Forming 12mm thick Expansion joints filled with pre-formed bituminous filler and top 30mm primed and sealed with sealing compound, Grade `B', thickness of concrete slab 100mm,complete all as specified and as directed.

M & l for Forming Contraction (Dummy) joints 30 mm deep x 10mm wide, filled with sealing compound Grade 'B' ,complete all as specified and as directed.

M L for Forming Construction joint 30mm deep x 10mm wide filled with sealing compound Grade 'B' ,complete all as specified and as directed.

M&Lfor sand cushioning (Tibba Sand), filling under floors/tiles including watering and consolidation complete all as specified and directed.

M&L Machine pressed precast concrete coloured interlocking paver block of approved shape and size confirming to IS 15658-2006 of 80 mm thickness with grey cement and no pigment, M-40 Grade of approved colour and design complete all as specified and directed

N.K. CONSTRUCTION COMPANY

SHREE GURU NANAK CONSTRUCTION COMPANY