DYI Concrete Crack Repair
Concrete Crack Repair

Suitable for walls or floors masonry and concrete crack repair.
Expansion joints, cracks caused by flexing concrete.

Preparation

  1. If the area for crack repair has been painted, old paint will need to be removed, concrete soiled by oil or other contaminates will require pressure washing
  2. Prepare the cracks to be repaired, Use a cold chisel and a hammer, longer cracks you may need to use kango hammer or grinding wheel (use correct protective gear) to remove any loose pieces in the crack. It is recommended that open the fracture to a width of 10mm and a depth of 20mm. where possible make the base or inside of the crack wider than it is at the surface. this helps the performance of Drizoro patching material bond in the crack.
  3. Remove any debris from the newly opened crack and you are now ready for your Concrete Crack Repair.

    Application

  4. If the crack is caused continuing flexing movement in the concrete then best  repair material is  Drizoro MAXJOINT ELASTIC.
  5. Place polyethylene foam joint backing rod or similar with a diameter 25% greater than the joint width, as bond breaker
  6. MAXJOINT ELASTIC is two pre-weighed components. Pour the resin, component A, into a clean container and add the powder gradually, Component B, while mixing with a low speed mixing drill (400 – 600 rpm), until a homogeneous mixture free of lumps is achieved.
    Avoid excessive mixing time and do not modify the proportions supplied between both components. Leave the mix to rest 2 minutes. Depending on relative humidity and temperature, pot life can vary between 30 – 60 minutes approximately
    After this time, re- mix to keep its workability but do not add water.
  7. Dampen surface, Apply a primer coat  of Component A with a brush to the joint and whilst primer coat is still wet to touch place the MAXJOINT ELASTIC into the crack or joint by trowel, caulking gun or putty knife. Push into the bottom edge of joint in order to squeeze out any air bubbles.
  8. For general waterproofing of slabs with vehicular traffic it is recommended that the entire slab be coated with MAXSEAL FLEX and covered with an abrasion resistant coating such as a concrete or asphaltic topping after 7 days.
  9. This process may also be used in a negative or hydrostatic water pressure exists please contact our team for more information.

    Order your Concrete Crack Repair Materials

    • MAXJOINT® Elastic

      Maxjoint Elastic Pails – sealing joints

      $65.00$275.62
      Select options
    • Maxseal Flex White & Grey

      $98.39$326.44
      Select options

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

Comments are closed.