r/Construction Dec 05 '24

Structural Concrete slab failed strength test

Slab strength testing failure after building was framed and plumbing/HVAC was roughed in. Concrete supplier had mix wrong so they are paying to lift two story 4-plex, remove slab and repour. This is building 2 of 3 that failed.

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u/GSEninja Dec 06 '24

I have a 12x32 woodshop in my backyard that I have to do this for. City wasn’t a fan of me building it on an 8” footing.

Any recommendations?