1

Really have no idea on what causing concrete to have air voids in it. Is it causes by evaporation of water during the hydration process?

  • Isn't it just air entrained in the thick concrete during the pour, especially as it moves past rebar? – Daniel Griscom Jul 3 '16 at 12:50
3

When concrete is mixed it has air trapped in the mix. When pouring walls we use vibrators to get the air out. With smaller pours hitting the forms with a hammer helps.

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.