It's getting toward winter and I want to pour concrete in a feedroom
on the rear of my barn. It's just a small 6 x 12 foot addition, which
is slightly less than a cubic yard. The concrete company dont want to
deliver such a small amount, but will if I pay almost double the per
yard price. I have been planning to pour a driveway extension in
front of my garage and was going to just add the amount for this shed
to the total and do it all at once. But I see now that there is no
way I am going to get that driveway done until next spring. At the
same time I want to do the shed now.

I checked into bagged QuikCrete, and the cost for that is even worse
than the delivered stuff. I could mix my own by hand and that would
be cheaper, but I need to get this job done before the ground freezes.

This concrete company said that they often have left over concrete at
the end of the day and said they would call me when they have some and
would fill a tub on the back of my pickup truck, and it would be
cheap. I like the sound of that, and honestly I did not want to pour
that feedroom in all one pour anyhow, because there is no way to
trowel it indoors without walking in it. So, doing it in 2 or 3
pieces would be perfect.

My question is how can I calculate the amount of concrete I can put
into a 100 gallon livestock tank. I'm no good at math. The tank is
designed to hold 100 gallons of water. And for that matter, what will
a 5 gallon pail hold. When they get excess, I will drive there, fill
this 100 gallon tank and if there's a little more, I'll fill some 5
gallon buckets. I will have to use buckets to transport the stuff from
the truck to my wheelbarrow, or just carry them right to the floor.
There should be 20 five gal pails in that tank.

OK all your math experts ........

Thanks for all help

Alvin