[TowerTalk] Base Grout?

[Jim White, K4OJ]

...having sold this stuff before, what you are wanting is indeed called 
grout - to you it will appear like very fine cement without much in the 
way of aggregate (rocks)... it "flows" easily, so it will seek out 
lowest spots when contained in a framework - make a perimeter around 
your plate large enough for you to be able to easily add the grout... if 
mixed properly it will flow, and as the overall level rises it will 
touch the underside of your plate...

The manufacturer I used to sell years ago was Master Builders, they are 
nationwide - I would do a Google Search based on that name and the 
biggest town near you, there are lots of other manufacturers with 
equally fine products - this will find you a distributor of this type of 
product in an urban area near your QTH.

You are looking for non-metallic grout, if I remember the sacks it came 
in were kinda small (10 lbs or 20 lbs) but one should should be plenty 
for your job... mix it up thoroughly and pour it in.... it will seek 
level and if that is lower than your plate, add some more... check the 
bag for cubic area and specific directions.... it is not rocket science.

When it sets it is harder than the concrete it is sitting on top of... 
this is how they install heavy equipment like air conditioning units or 
furnaces in commercial construction...

(don't forget to scratch your call and the date in off to the side of 
the pour!)

GL,

Jim, K4OJ

Jerry Keller wrote:

> My tower sits on a Tee-shaped steel base plate that's on the threaded J-bolt ends about 3 inces above the concrete. I've been told I should put "grout" under the plate, between the Tee-plate and the concrete, enclosing the 3 exposed J-bolts.  If this is advisable, what kind of "grout" is used for this, and where do I get it?
> Advice appreciated...always.  Jerry K3BZ 
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