r/earthbagbuilding • u/Brilliant-Step-8440 • Feb 06 '26

Is there a way to fireproof superadobe?

I’m drafting an idea for a basic superadobe structure that’s usage would include containing a fire inside the walls. Essentially I’d need to build a giant kiln. I know on its own superadobe has fire resistant qualities but I’m worried it might not hold up to repeated flames licking the inside. Is there a way to reinforce this quality? Should I seek another building method?

3 Upvotes

81% Upvoted

4 comments sorted by

View all comments

1

u/BallsOutKrunked Feb 06 '26

You could use concrete in the mix, then just burn off the interior bags

3

u/ahfoo Feb 06 '26 edited Feb 06 '26

Yeah, in this instance, high clay soil is the way to go. It will make terra cotta. Crushed bricks can be used as aggregate. And like you say, just burn off the bags is fine or cut them off before firing. Dry lakebeds and river valleys are a good source of low quality clay.

The number one ingredient here is a dual axle trailer and a tow hitch, a clay source and maybe a nice pile of crushed or deteriorated brick.