Repairing floor cracks

Cracks in concrete slabs that appear in our garages, basements, patios or stoops are quite common. They are often caused by too much water or humidity in the room. The cause of a crack on a concrete slab can also be related to improper installation of the slab or poor finish of the slab.

Of course, it is possible to repair cracks on a concrete slab , but it is also possible to completely redo it. To know which option to choose, you often need to call in an expert. He or she will be able to tell you if the concrete slab needs to be changed, repaired, or even simply if it is not necessary to intervene at the moment.

A crack in a concrete slab

Should you be worried about a crack on a concrete slab?

In most cases, no. In reality, the areas most affected by this type of crack are usually basement, garage, patio or porch slabs. Generally, this is a normal phenomenon due to the shrinkage of the concrete during the drying period.

There are several causes that can cause cracks to appear on a concrete slab

The main causes of the appearance of a crack on a concrete slab are known and numerous. Among them, we have selected some of them:

  • Shrinkage of concrete during drying is one of the most common causes;
  • Poor compaction of a backfill or poor quality backfill can also have an impact on the appearance of cracks on a concrete slab;
  • The absence of control joints, structural movements or hydrostatic pressure are also major causes of such cracks;
  • The overload of the slab should be checked, as it can be the cause of a crack on your concrete slabs.

For concrete slabs on your stoops or patios, in particular, the action of freezing and thawing can explain the cracks appearing on your slabs.

Finally, pyrite is a cause that should not be overlooked. This mineral species composed of iron disulfide is present in the backfill around the foundations of various constructions. In Quebec, its use has been quite extensive, and its presence has been common in concrete in Trois-Rivières. Pyrite was responsible for the weakening of the foundations due to cracks caused by swelling. This swelling is created by the reaction of pyrite with water, air and lime in concrete.

Our expertise at your service

You will be able to benefit from all the expertise of Groupe Fissure Expert and see all the difference in quality existing on our repairs!

For any question or repair on the cracks in your home, contact one of our experienced technicians at Groupe Fissure Expert inc.

Should this type of crack be repaired?

There are different solutions to such a problem. Each case has its particularities. Groupe Fissure Expert Fondation advises you to call directly on one of its technicians, who will be able to answer your questions about repairing a crack on your concrete slab.

As a result of various factors, the cause of a crack on a concrete slab is sometimes difficult to define. However, in order to repair it, it is necessary to know how to identify the cause in order to avoid a recurrence.

For any question or request for crack repair on a concrete slab, contact our team. Our experts will take care of all repairs.