[GSBN] use of ashes in clay plasters and/or floors

Evgen Shirokov iaebd at mail.ru
Wed Feb 4 09:24:41 CST 2009


we add wood ash in clay (+shell) plaster for SB walls finishing, as well as masonary ovens - it works well. 
But if say about heat insolation - normally it means use of coal ash. Somtimes it's problem - becouse of hight level nuclear radiation.

Evgeny Shirokov

-----Original Message-----
From: Rikki Nitzkin <rikkinitzkin at earthlink.net>
To:  ESBN  <strawbale at amper.ped.muni.cz>,GSBN <GSBN at greenbuilder.com>
Date: Wed, 4 Feb 2009 14:14:57 +0100
Subject: [GSBN] use of ashes in clay plasters and/or floors

> Hi all in a debate on the Spanish list serve, talking about  
> "insulating" clay floors, the following observation was made:
> "Otra pregunta: no sИ si en la capa de aislamiento se podrМa aЯadir  
> ademАs ceniza?. SИ que la ceniza se utiliza como muy buen aislante en  
> hornos de barro tanto en la solera del horno como mezclada con el  
> barro (yo mismo la he empleado). SerМa una posibilidad de reutilizar  
> un residuo sobretodo la gente que produce cantidades importantes  
> (chimeneas, cocinas econСmicas, estufas...)."
> "one more question: I don't know if in the insulation layer (of the  
> clay floor) it would be possible to add ashes? I know that ashes are  
> frequently used as good insulation in clay ovens-both in the floor of  
> the oven and in the clay. Would it be possible to re-use a residue  
> (ashes) that many people produce in important cuantities?
> note: here in spain a lot of people still use wood-burning stoves and  
> ovens, as well as fire-places...
> Any thoughts or comments?
> Rikki
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