[TowerTalk] Concrete Strength

[David Gilbert]

Concrete actually >cures< faster when damp.  Concrete needs water to 
form the chemical reaction that gives it strength, and without moisture 
present it merely dries out.

73,
Dave   AB7E


On 10/27/2010 6:36 AM, Mike wrote:
> 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
>
>
>
>
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