[Cob] STABLE WALL- lime weakens?
Charmaine Taylor
dirtcheapbuilderbooks at gmail.com
Thu Jul 9 17:14:09 CDT 2009
RODGER said: Lime could actually weaken the wall, interfering with
the clay's binding.
HI Rodger can you give an example or anecdote of this ? I do add
2%-10% lime to all my clay projects specifically to bind the clay
forever.
it is true a really good clay is perfect as is.
but if HER clay is not, then a 2-3% addition of lime at least will
bind very well all the parts of the clay and sand, and also get hard
as a rock.
I am most interested in where you learned/observed/heard this, so I
can educate myself-- any details are appreciated. 3rd or 4th hand
info is hard to validate.
I have very high silty& sandy clay soil here, so the lime binds it all
very well. we call it Blue goo- it is sometimes all silt, and a
gorgeous rich blue color when fresh harvested, then turns greyish in
the air. but the blue color is fabulous-- wish it could stay that
way!
--
Ms. Charmaine Taylor/ Taylor Publishing
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www.dirtcheapbuilder.com www. papercrete.com
PO Box 375, Cutten CA 95534