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On the subject:
Has anybody ever tried TUFA (Toba in
spanish) as an building material for combustion chambers?
I suspect that under the generic
name there are many different chemical and crystal varities. We have here one
that resemble AAC.
In my last Andean trip I saw a
traditional high.mass mud oven isolated externally with tufa bricks, some 20
centimeters wide. The oven was really hot and it was beeing running for a
few hours, the external wall temp was near ambient. (Aborigin
technology!!!) I only could get a small sample, it seems quite shock
resistantant but you can cut it with a saw. I hope to made some experiments
in a few months.
Comments?
Roberto.
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