|
|
Post by jpalombo50 on Dec 14, 2012 10:16:28 GMT -8
In the Rocket Mass Heaters book, they say to use a kind of slip/mortar between the bricks when building the base of the combustion unit. They say to just make a wet mix of sifted clay and sand. Well, it's winter and kind of hard to dig up clay right now. I have a big bag of red potters clay and am thinking of just mixing that with the sand to make this. I'm thinking "why not?" It's clay and sand.
Any thoughts?
|
|
|
|
Post by Donkey on Dec 14, 2012 11:14:42 GMT -8
yeah..
Potters clay will be (most likely) far more pure than what you would otherwise dig up. It's gonna need a LOT more sand than one might think.
Also, make the mortar joints as thin as possible. I usually dip the brick faces in clay slip and stick 'em straight on. I'll only use the tiniest amount of mortar if a brick wobbles on it's seat, then ONLY enough to make the brick not wobble, no more.
Oh.. your mortar can only be as thin as the sand will allow. I use screened wood ash instead of sand.
|
|
|
|
Post by jpalombo50 on Dec 15, 2012 0:10:39 GMT -8
Thanks! I was thinking of screening the sand as well. Wood ash... I guess that would have to be something that i would have on hand from burning wood  |
|
|
|
Post by jcalex on Dec 17, 2012 1:44:41 GMT -8
Paper Clay;a Clay mixed with toilet Paper..Paper clay makes items like large wall hangings much lighter in weight therefore easier to work with,and hang.
Paper Clay may be worth some research as far as it`s Insulation Properties go.Who know? It may just work. I think Paper Clay can be bought in 25 Lb Bags...not sure tho.
|
|
|
|
Post by Donkey on Dec 17, 2012 20:29:30 GMT -8
You can make paper/clay pretty easily..
I've done it with local clay-soils.
I didn't think to try to use it in a stove.. It'll probably work in place of sawdust/clay and other flammable filler/clay mixes..
The fiber will burn (or char) out, leaving behind a nicely insulative, but very brittle clay foam-like material.
|
|
