ASTM C231 - Air Content of Concrete by the Pressure Method

Can someone explain the report/the equation at the end with example?

Watching this video shows me just how bad my training was.

How is concrete casting in snowing area, like canada usa

Thanks a lot for this video

What if the petcocks are clogged

Good g

Thank you for this informative video.

i though for the air pot you have to use a strike plate placed 2/3 on the top of the pot?

my friends, please wear gloves when handling concrete. safety guys will freak out and possibly the state certifiers too.