Drizoro for Concrete Crack Repair – flexing expansion joints

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concrete crack repair, Concrete Crack Repair - flexing expansion joints

Hole or Crack Repair in Concrete Walls

concrete crack repair, Concrete Crack Repair - flexing expansion joints,expansion joints

Typical Crack – floor Slab or driveway

Concrete crack repair needs to be suitable for walls, suspended slabs, floors masonry. Unsightly cracks not only detract from the look of a your building, garage or patio. The cracks, if not repaired, will cause further degradation as moisture seeps into the concrete.

Where Concrete Crack Repair – flexing expansion joints or are just caused by flexing concrete. With moving joints and cracks the repairs required needs material to be also flexible.  Products such as Drizoro Maxseal FlexDrizoro Maxmesh, or Drizoro Maxjoint Elastic are best suited.
When the cracks in the concrete are not moving other more economical solutions use of  Drizoro MaxrestDrizoro Maxgrip, or Drizoro Watmat could prove to be more suitable cost effective solution.

Major Competitive Advantages of Drizoro MaxJoint Elastic with Moving Joints

  1. It must be applied to a damp surface
  2. withstands hydrostatic pressure therefore it can be applied on either side
  3. stable to UV 

PreparationDrizoro concrete crack repair, expansion joints

  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 repair material to bond in the crack.
  3. Remove wash any debris from the newly opened crack and you are now ready for your Concrete Crack Repair.

Application Method – where movement is apparent.

  • If the crack is caused continuing flexing movement in the concrete then best  repair material is  Drizoro MAXJOINT ELASTIC.
  • Place polyethylene foam joint backing rod or similar with a diameter 25% greater than the joint width, as bond breaker
  • 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.
  • 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.
  • 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.
  • This process may also be used in a negative or hydrostatic water pressure exists please contact our team for more information.

Application Demo Drizoro Maxjoint Elastic video

 Order your Concrete Crack Repair Materials

  • MAXJOINT® Elastic for expansion joints

    Maxjoint Elastic – sealing joints in cracked concrete

    $67.50$284.00
    Select options
  • flexible waterproofing membrane

    Maxseal Flex White & Grey

    $101.50$336.00
    Select options

 

Application Method – where NO movement is apparent

To wrap up the damage caused by not completing the repairs to cracked concrete is in the long run much more expensive. The major competitive advantage over many other joint sealants is that Maxjoint Elastic is that is UV Stable

References

  • use Drizoro products to do it your self (DIY) Concrete Crack Repair – for flexing or expansion joints

 

Expansion joint – Wikipedia

An expansion joint or movement joint is an assembly designed to safely absorb the temperature-induced expansion and contraction of construction materials, …
Expansion Joint Covers | Interior & Exterior Joint Covers

CS Expansion Joint Covers are backed by over 50 years of expertise to provide the right amount of movement, fire and wind protection with lasting durability.

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.

 

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