[Cob] foundation rock type

[Charmaine Taylor]

Jill-- Hydrated Lime has been used for decades on air strips and roads 
for stabilizing it.

2-6%  hydrated lime, tilled into the soil will make it impervious to 
rain/heave/swell, and can be done once you dig the footer/footprint for 
your cob house.

go to this free site at NLA and read the info.  I also carry booklets 
on  doing the same thing.  IN Australia they did a big job on an entire 
houing project for the hosues, sidewalks, roads because the soil was so 
poor and 'shifting'.   a disc tiller or manual method can be used to 
the right depth to ensure safe base for the house.

www.lime.org   and search for the documents below:

http://www.lime.org/SOIL.PDF
http://www.lime.org/Construct104.pdf

>
Charmaine Taylor Publishing  books at dirtcheapbuilder.com
PO Box 375 Cutten CA   95534 707-441-1632
www.dirtcheapbuilder.com  www.papercrete.com

  Hi-dee-ho everyone.
>
> We are busy over here preparing land and house site... questions:
>
> 1. Our "soil" is almost entirely clay - on all 10 acres. How does this 
> affect (if at all) the foundation, since clay expands and shrinks with 
> the rain.
>
>  Jill & gang
>
> _____