REPAIRS TO JOINT FILLING ,EPOXY AND OTHER CONNECTED WORKS OF OTT/PTT , DISPERSAL AND ALLIED AREAS IN RUNWAY AT AF STATION UDHAMPUR

Amount

Racking out existing filling in expansion joints, construction joints, dummy joints upto 25mm depth including scrubbing of joints with diamond cutter machine(Heavy duty) or gas flame torch with heat application to complete remove existing sticking sealing compound / Bitumen Grade 'B' from the sides , top and bottom of joints and totally cleaning the top surface of joints with brush and finally fanning with compressed air to make the joints free from all loose materials i.e dirt/dust etc to entire satisfaction of Engr-in-Charge, and filling depth of joint with provision of polyethylene back up rod of suitable dia to ensure tight packing so that no gap or voides exist at the top of back up rod. The deteriorated edges of concrete joints (included upto 50mm either sides of the joints) shall be made good to true line with provision of polymer concrete. Joints (25mm to 30mm wide) shall be sealed with provision of polyrethane base sealant using Techseal-RDL 941 EH or Techseal PU-2 of M/S Choksey Chemicals Pvt Ltd/Rallithane/Colpor-200 of M/S Fosroc chemical (India) Pvt Ltd/Seal N Flex 2K polyrethane joint sealant manufurered by BOSTIK INDIA PVT LTD and with primer N-49 and filling the joints with polyrethane based sealing compound as laid down in manufacturers instructions and as directed by Engr-in-Charge. Minimum clear depth of sealant above back up Rod shall be 10 mm complete all as specified and as directed. NOTES:-(i) Size of joints shall be made by cutting in case not available at site. (ii) If width of joints by cutting exceeds as specified above, the same shall be filled by polyrethane based sealant and no extra payment shall be made. (iii) Remaining depth at bottom (after keeping provision for back up Rod & sealant) shall be filled with sand and cost of same shall be deemed included in item rate quoted by tenderer. No extra payment for provisioning of sand (if any) shall be made. (iv) Masking tape shall be applied on edges of joint to prevent accidental slippage of sealant and shall be removed after filling with sealant. Cost of the same shall be deemed included in item rate quoted by tenderer. (v) Make of sealant shall be Techseal-RDL 941 EH or Techseal PU-2 of M/S Choksey Chemicals Pvt Ltd/Rallithane/Colpor-200 of M/S Fosroc chemical (India) Pvt Ltd/Seal N Flex 2K polyrethane joint sealant manufurered by BOSTIK INDIA PVT LTD and with primer N-49 and filling the joints with polyrethane based sealing compound as laid down in manufacturers instructions including masking tape 40mm wide on both edges joint before filling the joint and removing the tape immediately after applying sealant, or equivalent as approved by Accepting Officer. (vi) Expansion joints, construction joints, dummy joints upto 25mm depth including scrubbing of joints with diamond cutter machine(Heavy duty) or gas flame torch with heat application to complete remove existing sticking sealing compound from the sides , top and bottom of joints and totally cleaning the top surface of joints with brush and finally fanning with compressed air to make the joints free from all loose materials ie dirt/dust etc to entire satisfaction of Engr-in-Charge

All as per srl item No 1 above but joints 31mm to 35mm wide and 10mm minimum clear depth of sealant above back up rod complete all as specified and as directed.

Repair to POP out stalled joints, corner spot hole in concrete slab by cutting chiseling heavy duty mechanical cutter side perpendicular to a minimum of 3 cm and cleaning off all loose or broken materials to a distance exc 250 mtr, cleaning and washing the surfaces with acid solution ( a mixture of hydrochloric acid and water in eual proportion @ 7 ltr per 10 square mtr) application of primer to dry surface of side and bottom and surface with Epoxy treatment resin mortar (mixture of Adralite GY-257 vantigo and adradur HY -840 vatigo with quarts sand) incl form work where required complete all as directed Note :- (a) where the thickness sizs more than 5 cm Epoxy resin mortar shall be applied in two layers. (b) Joints and brocken corners shall be cut by cutter and POP out /POP hole shall be cut by heavy duty mechanical cutter/chisel.Make.- Bostic/Pedilite/ Sika india Pvt Ltd or Equivalent in other E-in-C approved make.

Labour only for totally cleaning the top surface with steel wire brush and finally fanning with compressed air to making the surface free from all loose materials i.e dirt/dust etc to entire satisfaction of Engr-in-Charge and applying cold polymeric bitumen emulsion (PME) mopping of total cold liquid PME ( minimum 1 ltr & maximum upto 2 ltr per sqm for two coats after dilution with 50% water ), each coat diluted in the ration 1:1 (PME: WATER) and ensure uniform finish of runway complete all as per manufacturers instruction and all as specified and as directed by Engr-in-Charge. MAKE of PME :- M/S Hindustan colas ltd (Hincol), M/S Shell India Market Ltd Note:- The tenderer shall take into consideration for the following points while quoting his rate for the items:- (a) The work shall be carried out through authorized and qualified applicator of the manufacturer only. (b) Care shall be taken to fill wider gaps/cracks with 0.6mm to 2.36mm size coarse sand as per manufacturers instruction. (c) Workman ship & quality of work is as per satisfaction of user & Engr-in-charge.

M&L for repair to cracks of width 2 to 8 mm in flexible surfaces by cleaning of all cracks with air compressor and make it free from dust and applying evenly blown hot bitumen of grade 85/25 in two coats with necessary interval to ensure complete filling/total filling of the gap in line with existing pavement, finally dry coarse sand mixed with cement in 1:1 ratio sprinkled on top complete ensure uniform finish all as per manufacturers instruction and all as specified and as directed by Engr-in-Charge. Note: Before start the work all cracks to be measured in presense of Engr-in-Charge.

Supply only cold polymeric bitumen emulsion (PME). MAKE of PME:- M/S Hindustan colas Ltd (Hincol), M/S Shell India Market Ltd Note: (a) Only undiluted quaintly will be measured under this item. (b) The item will be used against quantity of PME requiredabover item No 5. ( c) All material deposited to AGE B/R office before work start. (d) All empty drum also deposited AGE B/R office till complition of work.

SHIVAE CONSTRUCTION

M/S M P Construction Co

SARDALIA CONST CO

NEW GURBINDER INDUSTRIES