Need advice, got took by the concrete man....

[Wesley beach]

Just like the title said... I'm building a new shop (my dream shop) only thing I subbed out was the concrete work, the only thing I've had problems with. After many other problems with this guy's work... I'm down to this. Any ideas to fix the spot and not have problems down the road would be very appreciative. Thanks

 

[audioworks04]

Eww, no real fix outside of removing a square of the floor and repouring. You could shot blast and surface patch but no guarantees that it will hold up in a shop situation. If you never expect to see water inside the shop then I would probably just leave it as any surface remediation will likely cause huge headaches in the future. Assuming that red iron is already placed in its final location you could drypack non-shrink grout under it to support and prevent bug and animal intrusion.


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[climb.on]

I had an 1-1/2" low spot similar to that, in one corner of my shop slab, about 2' in each direction. I cut plywood shims, of varying thickness to support the wall. I wasn't happy, but fortunately it's covered by the stairs and shouldn't see water in that area. I'd say shim it up and get to putting those walls up. I'm sure there are top coats that could fill it in, but I don't think I'd let the guy who did the work back, to repair it.

Just have to determine if it's worth the expense (or litigation) to pay for the repair. ***** but probably will have to live it with.

 

[larry4406]

I think I would build a form and push in non-shrink grout to pack the gap solid. Then on the exterior make sure your flashing is zee'd over the slab edge to preclude leaks.

 

[readhead]

What do you want to fix? The not flat condition back into the slab or just the low spot under the base angle? If it is the base angle that is easy. The vertical leg can be cut and pulled down to the slab or non shrink grout can be installed under the angle. Cutting the angle would be easier and draw less attention to the condition. The wall sheeting should extend enough to cover the problem on the outside. Hopefully the erectors shot all the column locations and shimmed and grouted any low spots. If not they are going to chase that bad slab all the way to the roof.

 

[Hpozzuoli]

If you are going to epoxy, racedeck, or tile the floor I would grout it level or even use liquid level. My point is if the floor will be covered you have a couple of options. If you want the natural concrete look you will need to cut, grind, and re pour. I feel bad for your situation, but don’t get too mad. The toothpaste is out now so all you can do is make it better.

 

[Cairo94507]

Sorry to see that happen. I would stop payment on any owed funds to that concrete hack and not let him back on the property. Hopefully you did not pay him up front. If so, if he is a licensed contractor, file a claim against his bond for the amount to repair the floor to fit properly.

 

[rsanter]

I think I would build a form and push in non-shrink grout to pack the gap solid. Then on the exterior make sure your flashing is zee'd over the slab edge to preclude leaks.

This is what I was thinking as well.
Not sure you need a form if the slump or the grout is right.
For bonding to the concrete I would hit it with a grinding disk to clean it and give it some tooth

 

[readhead]

Usually the base angle is installed flush with the edge of the slab. No need for a Z flashing. Some companies supply a rat guard that installs first to close the bottoms of the sheet to keep unwanted critters out.

 

[rburke65]

Really....how could your forms be that far out of level?

 

[rubberrodder]

Maybe that was his answer to forgetting the floor drain. No? I Didn't think so either.
If you still owe money on that kind of work, Don't pay it!
I'm not a concrete guy and I can (and have) done better than that. If you paid up front, small claims court, I feel, is in order. Legal Zoom and other similar websites can help you through the paperwork for a proper lawsuit too.

 

[wrenchguy]

Really....how could your forms be that far out of level?

level??? Initially he prolly finished off at form height, like a lot cement guys poured extra wet and in simple terms it shrunk. happens all the time in wall work.