[Stoves] Stoves Digest, Vol 4, Issue 13

[Crispin Pemberton-Pigott]

Dear Richard

I have seen only the original pamphlet on the clay setting method, but it
was definitely a PCorp publication so it should be available by now. I don't
think anyone knew much about the chemistry at the time. He built houses and
drains around them using the method.

Regards
Crispin


-----Original Message-----

Good questions Kevin,

 I am embarrassed to say that I have never pursued the issue, an admission
made worse by the fact of having extolled Biogas tech widely in Tanzania
through most of the 70's . Question is if the bath is acid as Crispin
implies through his description of the mentioned peace corpsman,  what
effect would  that have on the  fiber content of the dung so essential for
wet process briquetting ? We would need the fibers intact. 
As also related to Crispin's story about the use of the decanted liquid for
solidifying clay: I'm just wondering Crispin; did you get any idea of the
thermal properties of the resulting clay-cement ? Would it in other words be
good for stove insulation and/or structure ?

Richard