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The Work of Art and The Art of Work Kiko Denzer on Art |
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Cob: cast earth is for walls*Lootvik* lootvik at usermail.comThu Oct 18 16:57:42 CDT 2001
Castearth uses calcined gypsum [plaster of paris] that causes the slurry to swell slightly as it cures. This is supposed to prevent cracking, which you would ordinarily expect with such a wet mix. Ligninsulfonate is used as a retarder to prevent the mix from going off before it's poured. Of course you need forms for this method. I'm sure it's far too low density to use as a countertop. And then there's Paul with his cob machine. Is it stored away collecting dust somewhere Paul? ;-) *Lootvik*
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