Power mixer needed ??
I am still trying to come up with a lightweight concrete mix (other than hypertufa) that isn't real complicated. It was suggested that I contact Grace Industries which I did.
They told me to use a pool aggregate mixed with cement.
It is a air entrained vermiculite. From what I have read I should use a power mixer. Most of my projects are small, that I have been hand mixing in a tub.
Can someone please provide some insight ?? Also, how much of the aggregate to mix with the cement?
Thanks very much.