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Crack In Foundation Cement

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I assume we're talking about the slab floor in the basement. 

Is this just a hairline crack with no visible movement?  If so, leave it alone.  Concrete cracks when it expands and contracts.  This is why large areas of concrete have grooves cut into them after the concrete is cured - to give the slab a place to crack that won't look bad. It's not a problem and any attempt to fix it will make it look worse.

If it bothers you, put some resilient type of floor down - VCT, carpet, vinyl, etc.  Anything hard like epoxy will just crack there too.

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9 minutes ago, maintenanceguy said:

I assume we're talking about the slab floor in the basement. 

Is this just a hairline crack with no visible movement?  If so, leave it alone.  Concrete cracks when it expands and contracts.  This is why large areas of concrete have grooves cut into them after the concrete is cured - to give the slab a place to crack that won't look bad. It's not a problem and any attempt to fix it will make it look worse.

If it bothers you, put some resilient type of floor down - VCT, carpet, vinyl, etc.  Anything hard like epoxy will just crack there too.

Control joints 

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