"Scott M. Petty" wrote in message ...
I'm planning to mount a telescope pier (Astro Pier) on a to be poured
concrete slab. The slab would be on a slope (although the slab obviously
would be level) and would vary between 1 and 5 feet in depth, being at least
4 feet deep under the telescope pier. The overall size of slab would be
approximately 8 x 13 feet.

Would NOT isolating the telescope pier from the rest of the slab be a
problem? If my children or dogs walk on the slab am I going to get all
sorts of vibration in the mount or is the mass of the slab such that
vibration shouldn't be a problem?

Thanks in advance!!!

Scott



The best way to mount a pier is to isolate the pier from the rest of the pad.
I would suggest that the central pier section be cast separately, and then
fill in at least a foot between the walking slab and the pier with large
loosely fitting rocks so that the resulting waling slab is completely
isolated from the pier itself. As agregate is less expensive than concrete
thsi may also save money.

Good luck