Before you start to repair the crack use any combination of a wire brush vacuum or power washer to remove any oil dirt or debris from the concrete wall surface and from inside the crack.
Patching exterior concrete walls.
The crack must be.
Patch concrete repair concrete cement masonry the home depot store finder.
Movement in the ground where the concrete wall has been placed can cause the appearance of stress cracks on the surface of the concrete.
The only way to repair foundation wall cracks successfully is by the injection process.
After the concrete has cured however it does not easily bend to outside forces.
Step 1 clean and prepare the cracked area.
Injecting a typical wall crack with an epoxy or urethane resin is done under pressure pushing the material from the inside all the way to the outside.
You can use mortar mix to repair masonry but it is about 4 5x as expensive and the finish isn t that much nicer.
Patching such holes is a necessary part of keeping your concrete foundation wall in good repair.
The methods discussed in this article can be used to repair minor non structural cracks.
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If your aim is to make the wall look better a smooth surface is also easier to paint.
The injection process fills the crack from top to bottom from inside to outside.