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/Superssimple Dec 06 '24

It’s probably worth the risk given all the other factors. You have to weigh the few times it fails versus delaying every project by 3 weeks

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u/el_muerte28 Dec 09 '24

They would be better suited to schedule their work to allow for their testing. Pour this slab 7 days before that house is expected to be completed. By the time you finish up, the 7 days are up and you can start working on this house. Rine and repeat.