I would agree that it could in practice generate as many problems as it
tries to address, but it doesn't make sense to me that a manufacturer
would specify 6,000 psi grout (roughly twice typical concrete) for a
non-structural intent. If I simply wanted to keep the water out, I'd
just shoot the space under the plate with closed cell polyurethane foam.
Dave AB7E
On 5/25/2011 4:30 PM, Steve Maki wrote:
> I can't speak for US Tower, but on commercial towers it's been used as a
> waterproofing scheme, and has largely fallen out of favor because of
> water entrapment issues and it prevents the inspection of the anchor
> bolts, so has been counterproductive.
>
> -Steve K8LX
>
> On 5/25/2011 7:13 PM, David Gilbert wrote:
>
>> I'm pretty sure the grout is indeed structural ... I believe it's there
>> to help prevent the base plate from deforming.
>>
>> Dave AB7E
>>
>>
>>
>> On 5/25/2011 3:45 PM, R. Kevin Stover wrote:
>>> As far as I can tell from the US Tower drawings the grout isn't
>>> structural. It's just filling the space between base plate and the
>>> concrete base as well as keeping water out. It does keep the leveling
>>> nuts from moving.
>>>
>>> I could be wrong, either way the LXC prime directive still applies.
>>>
>>>
>>> On Wed, 25 May 2011 17:29:41 -0400
>>> "Mark Robinson"<markrob@mindspring.com> wrote:
>>>
>>>> I will be interested to see what others have to say but maybe a 3:1
>>>> mortar mix would work. 6:1 is normal for brick work as you don't
>>>> want the mortar to be harder than the brick but since this is being
>>>> applied to concrete a 3:1 mix would be much harder and stronger.
>>>>
>>>> Mark N1UK
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