Along the same lines as Steve's comments, an operator (aka the concrete
batch plant) might not know what 5Kpsi mix is. However, they may recognize
it as 5 sack or 6 sack mix and using river rock (up to 1.5" size rock)
instead of stones or crushed gravel (typically 1/2" in size). Also suggest
you stay away from curing accelerants such as calcium chloride products...
IMHO you should be able to stack the tower in 1-2 weeks but I would hold
off on the beams, mast , rotor and other until the concrete looses its green
hue and takes on a truly white chalky color.
MK
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] On Behalf Of K7LXC@aol.com
Sent: Tuesday, July 07, 2009 7:43 AM
To: towertalk@contesting.com; gary_mayfield@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@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
**************Looking for love this summer? Find it now on AOL Personals.
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