[Cob] Factory waste cob

[billc]

At 8:09 PM -0700 5/8/08, Tim Nam wrote:
>Ask them if its contaminated with anything.
>
>What is veegum used for?

Curious myself, I did a google search.

Looks like it's something used by potters in glazing material.

Hydrated magnesium aluminum silicate mineral.  Suspension 
agent/plasticizer similar to bentonite and macaloid. Up to 2% of dry 
materials weight as plasticizer in high-kaolin claybodies, ...

it appears there are at least two types, veegum C and veegum T.  I 
didn't dig deep enough to find the difference between them.

That's enough off-track research for me tonight, but feel free to do 
some of your own.

>
>
>Kristi Shapla <kristishapla at yahoo.com> wrote:
>Our local factory, who makes veegum (Hydrated magnesium aluminum 
>silicate mineral), has a waste product that is said to be just clay 
>and sand.  I have no idea how to find out if that is truly what it 
>is.  But, we have been offered as much as we want for free.  They 
>usually truck this biproduct to a local cement maker.  I am going to 
>cautiously experiment with this, as I love to work with anything 
>labeled as "free waste product"!!!  If anyone has any suggestions, I 
>would love to hear them.  I think it will just come down to how much 
>clay/sand needs to be added.  I will be making some bricks this 
>week, so I will keep you posted.
>
>       
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>Tim Kijoo Nam
>Corvallis, OR
>tkn317071 at yahoo.com
>http://timsbloggo.blogspot.com/
>"We are discussing no small matter, but how we ought to live." -Socrates
>       
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-- 
Bill Christensen
billc at greenbuilder.com

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