[TowerTalk] Grout

[Ken Eckel Jr.]

I have been following this thread with interest.  I have a solution to my
water retention below the
tower plate.  I fabricated a 1/2 thick plate and level it about 2 inches
above the concrete with the 1" diameter anchor bolts.  The plate is about 2
1/2 feet square and the anchor bolt pattern is about 6"
from the edge of the base plate.  No grout.

73,
Ken AB5A
----- Original Message -----
From: "Bill Heinzinger" <w9ol@dataflo.net>
To: "Mike O'Brien" <k0myw@worldnet.att.net>; <towertalk@contesting.com>
Sent: Friday, July 14, 2000 12:04 PM
Subject: Re: [TowerTalk] Grout


>
> One of the reasons for packing the void below a tower mounting plate or a
> structural column is to prevent trapped water.
> Here in Illinois were it get pretty cold in winter, water in a void below
> the mounting plate will freeze.
> Ice expands as you all know and could deform the mounting plate.
> I think I remember from my classes that ice can expand to 3 times and
> produce 50K psi.
> Don't hold me to that, long time ago. Maybe some PE can give the exact
> figure.
>
> ----- Original Message -----
> From: "Mike O'Brien" <k0myw@worldnet.att.net>
> To: <towertalk@contesting.com>
> Sent: Friday, July 14, 2000 9:12 AM
> Subject: Re: [TowerTalk] Grout
>
>
> >
> > Please pardon my ignorance, but what exactly is the purpose of packing
> > grout between a tower baseplate and the top of the concrete pad? I know
> > that U.S. Tower, for instance, specifies it, but offers no explanation
> > nor directions...
> >
> > 73, Mike, k0myw
> >
> >
> > K7LXC@aol.com wrote:
> > >
> > > In a message dated 12-07-00 4.23.31 Greenwich Standard Time,
> kn9t@webtv.net
> > > writes:
> > >
> > > >  Need some info on type of grout to use
> > > >  under legs and around amchor bolts of free standing towers. Can
this
> be
> > > >  purchased at the local home builders stores ?
> > >
> > >     Look in the yellow pages under Masonry Supplies or a building
> materials
> > > supplier. You're looking for non-shrink grout.
> > >
> > >     I've also used the Home Depot type but it discolored after a year
or
> two.
> > > Works okay but looks pretty grungy.
> > >
> > > Cheers,   Steve    K7LXC
> > > Tower Tech
> > >
> > > --
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