[TowerTalk] Concrete Strength

[Mike]

It cures more slowly in the damp ground which is good, wait the recommended
month.

Mike, K6BR

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of Dan Bookwalter
Sent: Wednesday, October 27, 2010 5:18 AM
To: towertalk at contesting.com
Subject: [TowerTalk] Concrete Strength

I seem to recall from about 8 years ago that concrete is up to 75% of its 
strength in 72 hours or something like that. UST calls out 2500 PSI concrete

after 28 days , so that i don't have to wait a month i was going to use 4000
PSI 
concrete and put the tower on it after a week or so , thoughts ?

Dan N8DCJ



      
_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk at contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk