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[Cob] STABLE WALL- lime weakens?Charmaine Taylor dirtcheapbuilderbooks at gmail.comThu 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 Toll Free Order: 1-888-441-1632 www.dirtcheapbuilder.com www. papercrete.com PO Box 375, Cutten CA 95534
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