Cracks at the slab bottom

concreteworld · Mar 28, 2017

Hello Everyone,

Please see the attached photo of slab soffit where random cracks have developed. Also there are plastic shrinkage cracks at the slab surface.

Kindly explain reasons

dik · Mar 28, 2017

Can you provide a sketch showing supports and the locations of the cracks on the soffit?

Dik

hokie66 · Mar 28, 2017

You can't definitely say from the photos, but plastic shrinkage cracks at the top often go all the way through. Some could also be drying shrinkage cracks. Why did the plastic shrinkage cracks occurs? Inadequate/no compaction of the concrete, I assume.

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Cracks at the slab bottom

concreteworld

Civil/Environmental

dik

Structural

hokie66

Structural

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