[Strawbale] Cement vs. clay (was "trashcrete")
Sigi Koko
sigikoko at earthlink.net
Fri May 4 12:06:14 CDT 2007
HW wrote: <<There seems to be a resistance to cement by some people obsessed
with embodied energy, but personally I find it a more desirable material to
work with than clay slip.>>
The issue with cement is not just embodied energy, but also that a pound of
CO2 goes into the atmosphere per pound of cement produced. So by my
thinking, if clay is local, has almost zero embodied energy, and produces no
greenhouse gas...it's a winner from an eco-viewpoint.
Thanks, Sigi
Sigi Koko
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