In a message dated 8/1/02 8:28:01 PM Pacific Daylight Time,
> what is called grout is added under the plate...
> grout is a very flowable version of "concrete" - a small form is made on
> top of the pour and the grout is then mixed and placed into that form ...
> grout is VERY fluid and will flow into even the center of your plate ...
> once it sets you will have the weight being able to be spread out over a
> large area ...
> just prior to doing the grout verify not that the plate itself is level
> - not by checking it - but, by installing the first section of tower and
> making sure that IT is plumb! there may be small irregularities in the
> length of the plate's stubs that slip into the legs or their welding
> which could translate to the plate itself being level but the tower
> section being crooked - which is really what this is all about!
Yes - a typical spec calls for non-shrink grout. I have to go to a
concrete supply house to get the right stuff - I haven't been happy with the
stuff available from the big box hardware store.