Message #243081

[Peachcreek]

Chris concrete is what I do for a living, As you know your math is correct. The problem comes from the ucart batch plants. They mix the concrete at somewhere around a nine inch slump because it is not being churned during transport and this keeps it from setting up to fast. The "mix" volume may have been 1.25 yrds at the plant but in this heat it does not take long for water to evaperate so by the time you got it placed you were dealing with less material. It is a fact that my yield is better during the cooler months and I think it is due to the added water to keep the concrete plastic during transport. I always figure 4% waste on my jobs and it seems like the smaller the job the more waste there is. I try not to use ucart unless it is just a strange job that i cant get a truck to. I would say you were shorted due to water or just straight up greed.

 L x W x H = cubic feet devided by 27 = cubic yards x 1.04 for waste