[TowerTalk] Rohn 25G clone born few minutes ago...

[Chris Wynn]

I completly agree.  I'd give it a week and then start stacking.  However, I'd do my best to keep it wet so that hydrolysis continues....
Good luck and see you in the pile ups!
ChrisN4XFA SEDXC ARRL LIFE MEMBER 


Sent from Yahoo Mail on Android 
 
  On Tue, Jan 12, 2016 at 12:09 AM, DALE LONG<dale.long at prodigy.net> wrote:   For most purposes 7-10 days should be enough to begin building a tower.  No need to wait one month unless you are building a monster tower.
Dale - N3BNA
 

      From: Ed Sawyer <sawyered at earthlink.net>
 To: towertalk at contesting.com 
 Sent: Monday, January 11, 2016 11:12 PM
 Subject: Re: [TowerTalk] Rohn 25G clone born few minutes ago...
  
Congrats Douglas!

 

The Concrete manuals say that concrete will reach 75% of its 28 day rated
strength in 7 days.  Almost 90% in 14 days.  For tower building, 14 days is
already overkill.  7 days is plenty.  Obviously, the other question is what
was the specified mix strength.  If you have 5000PSI concrete, then its
already stronger than typical building foundation concrete after only 7 days
of cure.

 

Ed  N1UR

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