Repairing concrete

Concrete will expand and contract due to temperature changes and shifts in the weight distribution of the building. This movement can cause cracks in the concrete flooring.

concrete crack

  • General Repairs Use a repair mortar for repairs over 3mm wide and 5mm deep.
  • Fine Cracks < 3mm wide Use a fine crack repair mortar to fill
  • Surface Levelling¬† a self leveling repair screed will make a surface more even
  • Vertical Repairs Use a light weight vertical repair mortar to minimize sagging.


Surface preparation
Read the directions prior to use on all products. First, remove all loose material and rake out with a bolster or scraper to create an area that will take filling more easily. Make sure the surface is dry, if necessary prime surface before application of repair product.