Rethink Your Life!
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The Work of Art and The Art of Work
Kiko Denzer on Art
[Cob] fast mixingphil philhawnnc at excite.com
Sun Aug 27 11:15:53 PDT 2006
This is a less traditional method of mixing and purists (of which I used to be one) may not approve. As to fast mixing: Working alone on the solar shed here at the college this summer I found that you can use a rotating cement mixer to make cob. I was able to mix approximately 27 gallons at a time by first making screened soaked clay and then mixing that in the mixer with sand. You can even add straw. The finished product still needs a bit of trodding but for one person this is a lot less work. It also means that I can continue cobbing while mixing and you can't beat that! The process is as follows - add one 5 gal bucket of sand to the a rotating mixer and then wet clay by the handfull to ratio (2:1 in this case). I ended up using 3 buckets of sand and 1.5 buckets of wet clay. That was the max the mixer could hold without destroying itself. Notes: I had to build a more stable base for the mixer and weight it down with sand bags. Also, I found that at the defualt angle the mixer wasn't mixing well and had to prop it up a bit. To help facilitate mixing and keep cob from sticking to the walls of the mixer I added two twenty pound squarish stones. Phil Hawn Berea College, Kentucky http://www.berea.edu/sens Ed wrote, ***** Fast mixing and application is essential to making cob work economically****** _______________________________________________ Join Excite! - http://www.excite.com The most personalized portal on the Web!
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