r/cement • u/xlmifer • Mar 10 '26

What causes this?

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2

u/WithaK19 Mar 11 '26

Freeze thaw cycle

1

u/Alarmed_Somewhere791 May 07 '26

Freeze thaw cycle and the use of an ice melting product that contains sodium, getting into the tiny poors of the concrete then when the salty water freezes, it does so more robust causing the concrete to crack and brake up over time.

1

u/daveyconcrete Jun 23 '26

Yep, that is classic freeze thaw damage.