REPAIR TO JOINT FILLING OF RUNWAY PTT ALL TAXI AND ALL DISPERSAL AND CRACK FILLING OF FIEXIBLE PORTION OF RUNWAY AT AF STATION PATHANKOT

Racking out existing filling in dummy/construction joints upto 25mm width and depth as required to provide backup rod and minimum 15mm thick sealant compound and making it perfectly U shaped with vertical sides by means of mechanical cutter and ensure that joints should be cleaned to remove sealing compound from sides of joint , after cleaning and fanning with air compressor to make the joints free from all loose material (i.e. dirt/dust etc ) and provide polyethylene foam rod backup material of suitable size (Backup rod to be fixed with wooden roller) and applying primer of approved make to side and bottom of joints and filling with polyurethane sealant of approved make (minimum 15mm thick over backup rod) , all as manufacturer instruction and old material should be removed from Technical area as directed by Engineer-in-Charge. Note: (1) Masking tape on edge of joint to be provided on top surface to give neat finish to sealant and removing the masking tape after sealant is applied. (2) An exclusive team of 06 labourers for each task such as removing of existing fiiling, cleaning of open opened joint, finishing of edges with grinder/cutter, applying of primer by one forward stroke and second backward stroke of brush, then applying joint sealant after appropriate time gap and as directed by the Manufacturer's instruction. (3) Quantity of joint filling material required shall be produced by contractor from approved manufacturer and store under supervision of Engr-in-Charge. Qty shall be procured in advance in cunsultation with Engr-in-Charge on quarterly basis.

Racking out existing filling in dummy/construction joints above 25mm wide upto 40mm wide (for more than 40mm width of joint, for every 25mm width additional length will be measured) and depth as required to provide backup rod and minimum 15mm thick sealant compound and making it perfectly U shaped with vertical sides by means of mechanical cutter and ensure that joints should be cleaned to remove sealing compound from sides of joint , after cleaning and fanning with air compressor to make the joints free from all loose material (i.e. dirt/dust etc ) and provide polyethylene foam rod backup material of suitable size (Backup rod to be fixed with wooden roller) and applying primer of approved make to side and bottom of joints and filling with polyurethane sealant of approved make(minimum 15mm thick over backup rod) , all as manufacturer instruction and old material should be removed from Technical area as directed by Engineer-in-Charge. Note: (1) Masking tape on edge of joint to be provided on top surface to give neat finish to sealant and removing the masking tape after sealant is applied. (2) An exclusive team of 06 labourers for each task such as removing of existing fiiling, cleaning of open opened joint, finishing of edges with grinder/cutter, applying of primer by one forward stroke and second backward stroke of brush, then applying joint sealant after appropriate time gap and as directed by the Manufacturer's instruction. (3) Quantity of joint filling material required shall be produced by contractor from approved manufacturer and store under supervision of Engr-in-Charge. Qty shall be procured in advance in cunsultation with Engr-in-Charge on quarterly basis.