On 9/12/2014 12:46 PM, stryped wrote:
Is it possible to mix say 1/4 a yard of concrete that way at a time? ...

That seems like a pretty big batch to me. 1/4 yd is about 7 cu ft and
that would weigh 1000 lb. I'd start MUCH smaller, to get the feel of
it, before trying to do 1/4 yd.

Bob