[TowerTalk] Concrete Set Time

[Julio Peralta]

I've always wondered how the average guy can tell the difference between
2500 and 5000 PSI concrete when it's delivered. It's my understanding that a
test cylinder has to be poured and sent to a lab to determine the PSI
strength. Couldn't a concrete company tell you its 5000 PSI and deliver
something much less than that?

Julio, W4HY

-----Original Message-----
From: K7LXC at aol.com [mailto:K7LXC at aol.com] 
Sent: Tuesday, July 07, 2009 8:43 AM
To: towertalk at contesting.com; gary_mayfield at hotmail.com
Subject: Re: [TowerTalk] Concrete Set Time

 
In a message dated 7/6/2009 7:23:59 P.M. Pacific Daylight Time,  
towertalk-request at contesting.com writes:

>  How long after the concrete truck leaves before I can safely  raise my
HDBX-48 with hexbeam on top?  3 weeks? A month? 6  weeks?


    You've already gotten a bunch of good answers but  this is a little 
different take on things. If you haven't poured yet, you can  order a
stronger 
concrete mix (e.g. 5000 psi instead of 2500 psi) and it'll  get you to 2500 
in about 4 days saving you several weeks. The cost difference  is not 
significant. 
 
Cheers,
Steve    K7LXC
TOWER TECH - 
Professional tower services for hams





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