[Fwd: Re: [TowerTalk] CONCRETE]

[Floyd Soo, W8RO]

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-- 
Floyd Soo, W8RO
President, HI-RES Communications, Inc.
Net Manager and Board Member, Collins Collectors Association (#002)
QRP-L #392
hires@rust.net
http://www.rust.net/~hires

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Message-ID: <3494A049.7E4B@rust.net>
Date: Sun, 14 Dec 1997 19:13:13 -0800
From: "Floyd Soo, W8RO" <hires@rust.net>
Reply-To: hires@rust.net
Organization: HI-RES Communications, Inc.
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MIME-Version: 1.0
To: W7YW <W7YW@aol.com>
Subject: Re: [TowerTalk] CONCRETE
References: <a6471353.34940d09@aol.com>
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W7YW wrote:
> 
> Hi,
> 
> I have a question about the concrete in the tower base.  I am getting ready to
> pour my base this next week.  My question is...how long is an acceptable time
> to let the concrete cure before installing the tower.  I live in the Arizona
> desert and we have very little humidity here. It is usually about 10%.
> All answers would be appreciated, as I have not a clue.  The hole is 4'x4'x6'.
> 
> Tom,  W7YW


Tom,

Accepted practice is 4 weeks (28 days).  The concrete will continue to
cure for many months after that, but at about 4 weeks, you can safely
put a load on it and expect it to hold.  The ambient humidity has little
effect on concrete curing, it will cure under water just fine!  It is a
chemical reaction.  Depending on the mix, accelerants can be added, but
this compromises the integrity of the concrete somewhat.

Hope this helps!

73!
-- 
Floyd Soo, W8RO
President, HI-RES Communications, Inc.
Net Manager and Board Member, Collins Collectors Association (#002)
QRP-L #392
hires@rust.net
http://www.rust.net/~hires


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