[Stoves] ***SPAM*** Sawdust, rice husks, coffee husks mixed with clay to make bricks with insulation

[Ronal Larson]

Jed:

	That is very useful information.   Thanks.

	The ratio of 1:3 seems surprisingly low clay.  I assume that was by volume;  about equal ratio by weight?   That is a lot of biochar!

	Can you describe the improvement over using sawdust?

Ron


> On Jan 26, 2024, at 5:08 PM, Joshua Guinto <jed.building.bridges at gmail.com> wrote:
> 
> Hello Kevin
> 
> I had a lot of experience with saw dust, rice husk and carbonized rice husk with clay to make insulating bricks. It is the bricks I used for our project with Ron Larson. My best mix is clay and carbonized rice husk (CRH)  in a 1:3 ratio and kneaded very well.Unlike saw dust and raw rice husk, the CRH breaks down every time the clay is kneaded thus producing micropores each time. Having these pores smaller helps in the integrity of the bricks while improving the insulating property of the brick. Will tell you more in the following days. Too busy today for a series of big meetings. 
> 
> 
> Joshua B. Guinto
> Specialist, Appropriate Technology
> MSc Management of AgroEcological Knowledge and Social Change (MAKS)
> Wageningen University, The Netherlands 2006 to 2008
> Recipient, International Fellowships Programme  Award (IFP) 2005
> Ford Foundation
> 
> 
> 
> On Fri, Jan 26, 2024 at 11:53 PM K McLean <kmclean56 at gmail.com <mailto:kmclean56 at gmail.com>> wrote:
>> We want to do this with our brick cookstove?  Does anyone have experiences they can share?
>> 
>> Thanks,
>> Kevin McLean
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