[Cob] cob as mortar for cordwood wall

[Ian Marcuse]

I have seen cob mortar shrink away from the cordwood. Make sure you 
have a good amount of sand in your mix to lessen shrinkage. Be sure 
to do some testing before you start.I'm not sure what people's 
thoughts are on adding a small amount of cement. It would be good to 
test with cement also.

Ian Marcuse


>I plan on using cob as a mortar for a cordwood wall
>I'm going to build on an earthbag foundation. Does
>anyone have experience with this?  Should I use
>a normal cob mix but use short straw?  Any tips
>would be appreciated. Heres the website for
>my project:  http://www.owlswamp.com/projects/eb_shed/shed.html
>I also plan on applying a lime plaster over the earthbag
>foundation.  Does anyone have a recipe for a thin mix
>so the earthbag foundation will show through? But will
>keep out UV rays?
>pack
>
>
>
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