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Anyone added biochar into cob/adobe to make walls or roofing?

 
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I came across some very promising studies on the use of biochar as an additive to cement. Has anyone tried mixing biochar into their cob or cement mixes and would share their results?

Links: https://www.biochar-journal.org/en/ct/3 (scroll thru the middle paragraph if you don't speak Deutsch, or whatever that is)

http://e-biocharbricks.blogspot.com/

www.ithaka-journal.net/55-anwendungen-von-pflanzenkohle?lang=en (scroll down)
 
pollinator
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Conner Goertzen : A Fellow member Dale Hodgins has proposed the use of bio-char both as insulation and as a surface treatment to increase Solar Gain.

See link below !


https://permies.com/t/19303/natural-building/Dale-Marvellous-Inventions-Adaptations


 
Conner Goertzen
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Awesome! I knew someone else on this forum had to have come up with the same conclusion-- just didn't see the topic clearly defined as I was searching. Thanks, Allen!
 
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Conner Goertzen wrote:I came across some very promising studies on the use of biochar as an additive to cement. Has anyone tried mixing biochar into their cob or cement mixes and would share their results?



Not sure if this thread is still active, but we're in the process of designing our new office on the farm using adobe construction, and we intend to use rice husk char in the mud bricks (if they are able to retain their load-bearing strength) and interior/exterior plastering.
 
pollinator
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I have not considered this use for biochar.

Opening more doors for me learn, thank you.
 
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I've kicked around the idea of adding granulated charcoal to a section of rammed earth wall as the collection surface of a solar chimney; glad to see people more experienced and knowledgeable than me have had similar ideas!
 
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