Repairing and Sealing Cracks in Concrete

Crack in concrete

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NOTE: When working with cement-based products, always wear eye protection and waterproof gloves.

Concrete Cracks

Concrete is one of the most durable building materials available; but because of its rigid nature, exterior concrete can develop cracks due to:

  • Drying
  • Shrinkage
  • Temperature changes
  • Ground movement
  • Excessive loads

Once a crack develops, it’s important to seal the crack from water to prevent further deterioration. Flexible sealants are the best solution for concrete cracks that are subjected to continual slab movement, since they allow the concrete to shift.

As with any repair to concrete, proper attention to crack preparation is essential to achieving a successful result. Read on to find out how to repair cracks in concrete.

3 COMMENTS

  1. Is there an exterior type of paint to be used on an existing driveway after repairing the cracks?
    Your response will be appreciated.

  2. Hello

    After filling in the cracks with the flexible sealant I used a colored sealer on my driveway. It has been down two years now it has not peeled off

  3. The temperature can affect a lot of things, including concrete. If there are changes in temperatures across the season, it would be reasonable to expect some damage to the concrete. Checking the concrete before and after each season would be a good way to fix any cracks before it becomes serious.

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