Hello hello! This is my first post here. I've just bought a renovation project. I'm in the process of tearing out the basement, which was quite affected by moisture and mold.
We've torn down some (non-load-bearing) wooden walls in the basement. During the tear-down, it turned out that under the floor stud in a specific wall, there was a gap in the concrete floor. It was open directly to the ground, in other words. The gap is only where the wall was located. The gap is about 10 cm wide and about 2 meters long. The gap was previously covered by the lower lying stud in the wall and the drywall on both sides.

Regardless of why it was built this way, I'm wondering what the best way to address this is?
Is it so bad that I have to break up the concrete on both sides of the gap, put in rebar, and then pour new concrete there? Or is there some "simpler" way to solve this problem?
 
Hello and welcome to Byggahus!

You don't need to hack up the gap, just pour in concrete.
 
F fribygg said:
Hi and welcome to Byggahus!

You don't need to chisel up the gap, just pour in concrete
Ok! I'm a bit worried that the upcoming floor (leveling compound from Biltema) will crack if the concrete wedge can move in the gap
 
Then drill reinforcing bar stubs into the sides of the existing
 
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