[greeneyes]

Do you guys have any links handy for that? We have lots of clay soil where I live.

[JRandomFreeper]

I don't have any links handy, but Univerity of New Mexico has lots of information in their civil engineering dept.

I also had opportunity to be slave labor help with a mud brick project.

I'm blessed on the clay and sand. I have 18" of topsoil, about 14" of mostly pure fine sand under the topsoil, and beneath that is a thick layer of clay that works great for my project.

I wound up just digging a hole and playing with it until I got sun-dried bricks that would work. I'm using about 20% clay and 80% sand, no straw filler.

To rainproof it, I'm adding about 2% cement powder to the outside slip.

It's working for me, so far, and I've done test burns on a smaller 'oven' to verify that it's not going to fall apart when I get to 500F or so.

/johnny

[JRandomFreeper]

I did find a link to a guy from the univerity that has some good information.

/johnny