Waterproofing of existing expansion joint subject to hydrostatic pressure

 Products required

Method to seal expansion joint subject to hydrostatic pressure

  1. Prepare area to be treated by removing any loose materials ensuring a clean and sound surface.
  2. Optional: – Where water is seeping through the slap once cracks have been opened apply one coat of MAXSEAL FOUNDATION into the crack & 50 – 100 mm on each side and leave overnite (this based on the experience that the MAXSEAL FOUNDATION tends to seal the seeping in some areas)
  3.  Remove existing expansion joint sealing material to accommodate MAXPLUG and apply against positive pressure inside joint until water is halted as per technical data bulletin. Diagram shows reverse / uncut best for locking in MAXPLUG .maxplug-squarecut-reverse-cork
  4. Leave approximately 50% of joint width in depth to accommodate MAXJOINT ELASTIC
  5. Apply MAXJOINT ELASTIC into the remaining void to the surface, as per technical data bulletin #156.00.

Waterproofing of existi ng expansion joint sub ject to hydrostatic pressure-expansion joint subject to hydrostatic pressure

expansion joint subject to hydrostatic pressure







Note – This information is based on information from the manufacturer and from our own experience.
The in formation contained in this specification should be used in conjunction with the  a ppropriate technical data bulletins and material safety data sheets available from our office or
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