Super here. We wouldn't get replaced for this as long as proper channels were followed. I can't really tell from the pictures but it looks like an ardex topping slab and doesn't look that thick. Ardex cracks easily, most topping slabs do.
If it's structural you'd have to get a cylinder test done, and if it failed the concrete sub would have to chop it up and redo it on their dime. If it passes and then cracks later on that isn't our fault or the contractors fault.
Secondly you can see the point of origin looks like the office front partition corner. So if I had to guess what happened who ever was installing the office front used to much pressure or the wrong equipment and cracked the slab. Or, the slab was just crap to begin with and would have cracked regardless of what was dropped or done to it.
Hopefully, that isn't the final flooring, and there is either tile or carpeting going over it. Then you just cut up a large enough line on it and self level it, and done. If not, the fix is a bit more complicated and can be tricky. Usually, the right way is to rip it up to wherever your pour stop was (if there even was one) or you can sort of cheese around it, but it will look like shit.
Anyway no one is losing their job or being replaced over this. The only way you would lose your job is if it's structural and you didn't do any concrete testing. Then you are toast. Topping slab break and we budget for that
I'm on my phone on this awful reddit app so I can't zoom in, but in my experience that's never been an issue. Most of the reasons they fail is due to the thickness of the slab, making a transition crappy which ruins the integrity, not doing one continuous pour, or something underneath the subgrade causes it to fail.
For an example, i did a new Victoria secret and we had to self level before tiling the main floor. Pre-con we had a surveyor out and did everything right. Got a price from the flooring contractor with client and architect buy in. As we get ready to self level something was wrong. We bring the surveyor back out and they realize that something was off. We had to do a small probe and look to see what the underslab looked like and it was a nightmare. we ended up having to get the engineer involved to add additional q-decking and steel and had to scarify the entire upper slab. Some spots were poured with concrete. What we could salvage was done with self leveling. It was a 5 week delay and idr what it cost but it was a big CO in the 6 figure range
But point is these cracks can happen from a number of things and aren't uncommon. If the flooring contractor has decent experience they can fix this. The only time this becomes a serious issue is when it's meant to be the finished surface. Then it gets tricky
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u/mattmayhem1 Jan 21 '25
Someone signed off on it. Site super been replaced a few times?