If your going to butt up to the existing concrete use some expansion joint
material , they carry it at most building supply places . (i.e. home depot
ect..) If you are going to cap over your pier foundation, then you can put
some sand over it to create a bond breaker. then wrap the pier in some
expansion joint. this will allow movement of the slab to not affect the
pier. also I would suggest some vapor barrier on the ground 6mil visqueen
is what I use on jobsites ..


-----Original Message-----
Date: Saturday, January 30, 1999 11:25 PM
Subject: [M]: LX200 IN OBSERVATORY


>Hi Everyone...
>
>My LX200 is on a peir now. Building permits were just approved to go to
the
>next stage to allow for a 16 X20 roll off roof observatory. Construction
to
>start in about 10 days. My floor will be a concrete slab. I want to keep
>about a half inch seperation between the floor slab and the slab of the
>peir. Any suggestions as to the fill material between the two slabs?
>
>ED REGISTRATO
>
>
>
>

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