basskisser wrote:
Reginald P. Smithers III wrote:
Reginald P. Smithers III wrote:

Show me that concrete mix design that has 2500# of Portland cement in
it, and weighs better than two tons, and we'll go from there.
ps When I said Portland Cement weighed approx. 2500 lbs, I was referring
to Portland Cement, I never said or hinted that one would put 2500 lbs
of Portland Cement into a yard of concrete mix.

Have you looked over your concrete mixes to see that it is very common
for a yard of concrete to weigh approx. 4000 lbs?

One would not expect a PE to make sure a mistake.

No, it is not. Need proof? And if I show proof, will you admit your
mistakes? And where is that 2500 pounds of Portland cement per yard
used? Please show some criteria for your two tons, and your 2500 pounds
of Portland.


I tried to be helpful and show you many links showing you the exact
weight of concrete, and the exact weight of Portland Cement, you prefer
to ignore them. I didn't want you to continue with your silliness, but
I should have known better. The question wasn't "is all concrete 4000
lbs per year", because there are light weight concrete mixes that weigh
less, but as Bill said, concrete can and does weigh approx. 4000 lbs.
The fact that you fail to see this, does understand why you are not
employed.