I think the reason was for rain run off, when you pour the cement for the
base they want you to trowel it off with the center being the higher plane
so water runs off so it does not pool.
On Tue, Dec 13, 2011 at 9:37 PM, <firstname.lastname@example.org> wrote:
> About 25 years ago I had a 89' US crankup tower and I installed the
> plate between two nuts of each anchor bolt. The plate sat above the
> concrete pad and I never used grout. I never had a problem with this
> installation and I don't understand the purpose of using grout.
> John KK9A
> To: Steve Jones <email@example.com>, firstname.lastname@example.org
> Subject: Re: [TowerTalk] Grouting a New Tower?
> From: Grant Saviers <email@example.com>
> Date: Tue, 13 Dec 2011 12:58:34 -0800
> List-post: <firstname.lastname@example.org">mailto:email@example.com>
> Have the same tower, I am wondering about the benefit of grouting,
> especially after taking down a TMM433 that had a lot of rust underneath
> the base plate as a result of the grouting. My inspection of street
> light standards has been inconclusive 50/50 grout/no grout. Same with
> cell towers with nuts under the base plates, mostly no grout.
> Besides UST recommending it, why is it an advantage?
> Grant KZ1W
> On 12/13/2011 11:48 AM, Steve Jones wrote:
> > All-
> > I recently put up a US Tower HDX-589 crank-up. UST recommends grouting
> > the
> > the space between the base plate and the top of the foundation block. I
> > have purchased the proper non-shrink construction grout and am getting
> > ready
> > to do the job. But I'm concerned because I used this stuff to patch my
> > house foundation before, and it sets up so quickly I'm not sure how much
> > should mix up at a time.
> > Any suggestions?
> > 73,
> > Steve
> > N6SJ
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