BoatBanter.com - View Single Post - What did your boat dock..................

Reginald P. Smithers III

wrote:
On 16 Jan 2007 04:38:30 -0800, "basskisser"
wrote:

Is that the stuff that weighs two tons as you tried to tell everyone
here a year or so ago? Remember? Then when I called you out on it, you
said that was with the water added?? Remember that? Remember when I
proved to you that a yard of concrete WITH water was only approx. a ton
and a half?

Where are you getting that. Gravel mix concrete is 150# per square
foot according to everything I have heard. That is a tad over 4000#
per yard.
Maybe there is some air entrained concrete with a lighter aggregate
that gets that light and something like Y-Tong will actually float.
If you order the normal "3000# gravel pump mix" it will be about 2
tons a yard. The 3000# refers to the compressive strengh, not the
weight.

You are correct, but it is useless discussing facts with someone who has
no desire to hear the truth. As you and Bill mentioned a cubic yard
would weigh about 4050 lbs. My guess is he mixed up concrete with
Portland cement which would weight approximately 2500 lbs per cubic
yard. I am sure it is very easy for a structural engineer to confuse
Concrete with Portland Cement.