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[Gene GeRue <genegerue AT ruralize.com>]

On Sep 6, 2008, at 1:58 PM, keith bellinger wrote:

> Hmm, I've been taught to put an expansion board between concrete and  
> any
> posts or wall. That doesn't mean you can't or shouldn't connect them
> somehow but any movement due to frost heave or whatever would possibly
> crack the cement or split the post.

Interesting. I'm thinking about that. First thought is that we  
commonly attach various structural wood to concrete slabs. So, in your  
neck of the woods, do you put expansion board between slab and bottom  
plate? I suspect not. Depending on zone, the perimeter of a slab might  
require insulation, so maybe that takes care of it.

I've always believed that if you create perfect drainage there will be  
no movement induced by frost. I like what are known as rubble  
foundations for that reason. The New Madrid Fault is about 125 miles  
east of here and there is very serious rock between she and me, so I  
don't worry about earth movement. About the only thing that moves the  
earth for me is Chris.

These are five by five ACQ posts two feet into solid ground. I really  
do not expect any problem with them. I will be building sheds out both  
sides and the back and probably a short rain roof at the front, plus  
good out grading all around, so the post bottoms will not be very wet.  
But that experience I had with a CCA four by four going rotten in less  
than ten years has stayed in my brain.

I probably just need to get over it.

I have sent a letter to the ACQ people asking them about the rebar.