Re: [TowerTalk] Concrete anchors

[Patrick Greenlee <patrick_g@windstream.net>]

I would go for the adapter plate as a simple straight forward solution 
with no esoteric chemistry involved.  Had I had years of successful 
experience with chemical anchors and super confidence in the strength 
and condition of the top layers of the concrete, I would probably go 
with the adapter plate.
Patrick        NJ5G

On 8/13/2015 8:30 PM, Andre VanWyk via TowerTalk wrote:
> I have a concrete base next to my shop that once had 89ft US Crankup Tower
> on it. The tower is gone, and I acquired a 55ft US Tower that I want to bolt
> to this base for use in my shop. The bolts that once held the bigger tower
> is still there, but I plan to cut them off and install chemical anchors to
> support the smaller bolt pattern. The other option was to fabricate an
> adapter plate that would mate the 55ft tower T-base to the bigger bolt
> pattern, but this sounds like much more work than simply drilling into the
> concrete and installing new anchors.
>
>   
>
> I never used chemical anchors for this purpose and would appreciate any
> suggestions on size, and where I can source them. The rebar pattern for the
> bigger tower is much wider than the bolt pattern for the smaller tower, so I
> there is little chance for me to hit rebar when I drill. (I suspect I will
> need a BIG drill).
>
>   
>
> 73's
>
> NJ0F
>
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