Apr 11, 2012 #1 gosai Civil/Environmental Feb 10, 2007 38 Could any one help me in selecting concrete strength for Head Walls of SWM Pond? Does it require air content?
Could any one help me in selecting concrete strength for Head Walls of SWM Pond? Does it require air content?
Apr 11, 2012 1 #2 cvg Civil/Environmental Dec 16, 1999 6,868 if freeze thaw is a concern than air would be a good idea Class A, 3,000 psi compressive strength at 28 days is sufficient Upvote 0 Downvote
if freeze thaw is a concern than air would be a good idea Class A, 3,000 psi compressive strength at 28 days is sufficient
Apr 11, 2012 1 #3 Ron Structural Sep 24, 1999 16,336 Agree with cvg that 3ksi is probably ok, but the strength should be based on the stresses in the concrete....probably low, but should be checked. The term "Class A" means different things in different areas, so just stick with specifying by strength. Upvote 0 Downvote
Agree with cvg that 3ksi is probably ok, but the strength should be based on the stresses in the concrete....probably low, but should be checked. The term "Class A" means different things in different areas, so just stick with specifying by strength.
