How To Repair Floor Cracks

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How to repair floor cracks?

  1. Prepare the area
  2. Chip the edges of the crack
  3. Coat the surface with adhesive
  4. Prepare the mix
  5. Pour into the crack
  6. Let it dry


Cracks are normal occurrences on concrete floors, but they can also happen due to the wear and tear that it endures every day. Concrete floors are very durable. They don’t easily get broken, and minor cracks don’t necessarily mean that there are major structural problems. However, it’s still important to address and repair floor cracks as soon as possible. If you know how to repair floor cracks well enough, you can do it by yourself.

If a floor crack is left untreated, more use will cause it to widen. To learn more about repairing floor cracks, keep reading!


Prepare the area

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The first thing to do is to make sure that the area is clean. Measure the area of the crack and clean it with a wire brush. Make sure you sweep it thoroughly to remove any dust and loose debris. It is also advisable to vacuum the crack as any debris may cause the repair to not hold. 


Chip the edges of the crack

Next, you can use a chisel and a large hammer chipping hammer to chip away the edges of the crack if it’s a small one. If you’re working on larger areas of the floor, you can use a chipping hammer. Try creating a rough surface to help the patch hold in place. You also need to do this to remove high materials from the area. Don’t forget to wear eye protection while trying to undercut the edges.


Coat the surface with adhesive

Using a small paintbrush, completely coat the crack’s surface with concrete bonding adhesive. Let it dry completely before moving on to the next step. Depending on the instructions on the adhesive, you may add this to the sand mix instead of the crack itself.


Prepare the mix

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The sand mix should be made up of 1 part grade I or II cement 2 ½ parts clean masonry sand. When these two have been properly mixed, you can add water and the bonding agent (if applicable) to the dry mixture. 

In general, you should follow the manufacturer’s instructions on how to use their product, so make sure you read the instructions on the label first.


Pour into the crack

Fill the crack with the sand mix that you created. Use a trowel to make sure that the job is done thoroughly. You can also use the side of the trowel to smooth the surface of the crack.


Let it dry

Take another look at the mix to see if there is any additional need for fillings. Then, just leave it alone and let it dry on its own.


Key Takeaway

By knowing how to repair floor cracks, even someone relatively inexperienced in floor repairs will be able to pull it off. Just make sure that it is done properly to avoid any further damages to the concrete

If there’s no one confident enough to do it, you can always rely on professionals to do the job for you. Calling experts help ensure that the job is done quickly and thoroughly. And if you don’t know yet, you’re already in the right place! Flooring Solutions offer assistance in the repair and installation of floors, especially in industrial contexts. Take a look at the solutions that we offer here, or contact us if you have any inquiries!