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

[J. Hunt]

Great job on completing the base.

Sorry - but on the word of caution, none of us know how the concrete was poured or mixed.  
With this in mind, a 30 day wait is best.

James
--------------------------------------------
On Mon, 1/11/16, DALE LONG <dale.long at prodigy.net> wrote:

 Subject: Re: [TowerTalk] Rohn 25G clone born few minutes ago...
 To: "sawyered at earthlink.net" <sawyered at earthlink.net>, "towertalk at contesting.com" <towertalk at contesting.com>
 Date: Monday, January 11, 2016, 11:08 PM
 
 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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