MOVEMENT JOINT REPAIR

METHOD

Joint repair

  • Saw cut on either side of the movement joint at a minimum distance from the joint of 50mm
  • Remove all damaged sealant and joint filler/fibreboard.
  • Remove the damaged concrete to provide a sound flat bottom to the area.
  • Prime the sides and base of the repair with epoxy resin primer.
  • Mix and apply epoxy resin mortar to reform the joint shoulders flush with the traffic surface. Fibreboard can be used as a permanent internal shutter or use timber faced with plastic which can be removed from the joint after the mortar has hardened.

    Joint Sealant installation

  • After the repair mortar has hardened remove the fibre board to the required depth.
  • Prime the vertical sides of the joint.( this depends on the sealant to be used.) Allow primer to become touch dry.
  • Apply the sealant to the joint and tool to finish to the correct level.
    		•   

    		Saw cut
    		Parent concrete
    		Fibreboard/filler
    		Repair mortar
    		Joint Sealant

    MATERIALS

    Joint repair
    Epoxy resin primer: Resuprime
    Epoxy resin mortar: Resupatch
                                        Resuscreed 50

    Joint sealants and primers
    Polysulphide: Thioflex 600 PG
                              (Primer 7)

    Pitch free elastomer: Colpor 200PF
                                           (Primer 20)

    Epoxy polyurethane: Expoflex 800
                                          (in general no primer)

    Tough elastomer: Nitoseal MS300
                                      (in general no primer)

    Click on product name for data and full application instructions

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