Concrete.... What did I do wrong?

When I worked for Zachry, my crew poured hundreds of yards as duct bank encasement.

In the mixer trucks, it is loaded by weight, not yards. And if the sand and gravel was wet, the load would be short on volume. If it was dry, we'd get a little more that what was ordered.

But I also found out right quick that any order under 3 yards tended to be short. and the less it was, the greater the shortage was. The concrete companies would argue with me all day, but when the ditch and the pipes is all exactly the same and I could pour say 10 yards over 65 feet and then a 10 yards truck only covered 50' of ditch, you tell me.

When I poured my kennel slab, I used a company that had a 5 yard truck and delivered on Saturdays. I had ordered extra and was still short about 3 wheel barrow loads. I jumped they guy and he told me that it was because I formed with 2 x 6's. I told him to go fork himself because I figured concrete all the time and I had figured the slab at 10 x 16 x .5 and I was shorted. There should have been enough to pours an apron across the front

I doubt they did it intentionally Chris, but I am betting you were shorted.