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Re: [TowerTalk] concrete forms

Subject: Re: [TowerTalk] concrete forms
Date: Mon, 31 Jul 2006 12:51:13 EDT
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28 days allows concrete to cure to around 90% of its strength.
If allowed to dry to quickly, the surface becomes "crazed" and can develop  
lots of small surface cracks.  This is not usually a problem with  tower 
installations since there is very little surface area with respect to the  
amount of 
concrete in hole.
I have poured quite a few bases in the hot Florida sun and have never had  
one develop any cracks, even though I took no special measures to keep in  wet. 
My belief it is a non-issue.
I would however wait several weeks before erecting any tower after pouring  
the base.  Your choice.
Bill K4XS

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