I have a half finished basement.  I noticed a crack in the foundation floor running from one side of the wall to the other.  Whats the best fix for this?  

Depends on how deep and wide the crack is. It could be just a surface crack or could be one side settled more than the other and it separated from each other

Id personally probably open it up a bit with a small angle grinder(not the whole way down) and pour some self leveling cement or anchoring cement (brain fart, barely slept) or something of the sort in there.

Groove out and use hydraulic cement...


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1 minute ago, bhunted said:

Groove out and use hydraulic cement...


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What this guy said...

Yeah but if there is nothing supporting the slab because of settling then that needs to be addressed. For a wall crack dry groove out and add hydraulic cement

6 hours ago, PEWPEW616 said:

I have a half finished basement.  I noticed a crack in the foundation floor running from one side of the wall to the other.  Whats the best fix for this?  

Pic please.

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.

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 

1 hour ago, Zeke said:

Control joints 

I believe the technical name for control joints is "groove".

5 minutes ago, maintenanceguy said:

I believe the technical name for control joints is "groove".

Depends 

Oh, I get it