New Uneven Slab

[Rivet110]

Hi all…first post here. I had a subpar concrete slab experience for my soon-to-be 16x24’ garage. I’m in the DFW area.

The crew didn’t fill the forms to the top and skreed it unevenly. I have some low spots here and there (not my main concern, but something I’ll have to figure out). I have two of these turned up corners. This one in particular has a low spot about 4’ in diameter in a fan pattern before the corner.

My concern is framing and the sill plate. Should I grind these down? If so, what tool can I use to do this right. I hate having to fix poor work, but it’s gotta get done.

 

[ConCretin]

I think the first thing I'd do is add a concrete or block curb on top of that slab to get the framing up off the ground. The exterior grade is way too high and pitched toward the building especially with the neighbors roof dumping water right onto it. Those low spots in your slab are going to even worse when they are continuously full of water.

To answer your specific question, If you have a 4" grinder, a diamond disc would flatten the high spots pretty quickly.

 

[Cheepbeer]

That contractor would be back in there with jackhammers and then pouring it again!

 

[Cairo94507]

I don't know how some "contractors" get away with work like that and are still paid. That **** would be jack hammered out and re-poured and I would not pay the contractor a penny until it was done correctly.

 

[FMB4]

Welcome aboard Rivet. Have you already paid the contractor and, if yes, was it by credit card or cash? If by card I'd dispute the charge until the contractor makes his work good. That said, you could follow the good advice above and grind the edges and corners down until you have no standing water. Btw, is it possible that crete contractor failed to properly prepare the area before the pour and, as such, it's settling? If so, have it all torn out and redone properly.

We are, of course, sorry to see you having to deal with such a bad pour.

 

[grant00]

I think the first thing I'd do is add a concrete or block curb on top of that slab to get the framing up off the ground. The exterior grade is way too high and pitched toward the building especially with the neighbors roof dumping water right onto it. Those low spots in your slab are going to even worse when they are continuously full of water.

To answer your specific question, If you have a 4" grinder, a diamond disc would flatten the high spots pretty quickly.

Agree with this to lay a course of block to raise the sills up above grade especially with your slope. This will also give you a chance to get things level for framing.

 

[kelpaso1]

Yet another weekly crappy slab pour garbage here. Cant believe how many incompetent concrete companies out there.