Cob: Re: RE: good foundations

[Bill&Julie]

Hello... Michael,,,,,, The tensile strength I refer to is being pulled
apart.
If the support were to be removed from part of the wall.. The weight
of the wall would shear, and that part of the wall would also subside..
.If that part of the wall supports a roof beam.........  OOPS..  bill


----- Original Message -----
From: "Michael Fitzgerald" <puppetman at ix.netcom.com>
To: "coblist" <coblist at deatech.com>
Sent: Thursday, May 01, 2003 11:40 PM
Subject: Cob: RE: good foundations


>
>
> Thanx Mike, Bill, Amanda, and Marlin:
>
> I sure do appreciate your sharing with me some of your experience.
>
> My books still have not arrived and I am trying to content myself with web
> surfing and riffling the cob archives.
>
> Does anybody know if using cement in pressed earth blocks allows you to
use
> them below grade such as in a foundation? What about rammed tires? Will
the
> rubber protect the earth from breaking down and keep the rammed earth
> rammed?  What makes compressed earth uncompress when it's below grade?
>
> Bill you mention tensile strength of a cob wall. Does this mean that a
wall
> failure in a freestanding garden wall would likely be cracking. or would
the
> wall fall over taking the rest of it with it? It seems to me that poor
> tensile strength would likely keep damage due to frost heaving localized.
>
> Thanx again;
> Michael Fitzgerald
> Anthropologist/Woodcarver/Puppetmaker
>
>
>