Mike Cantrell wrote:
Hi Chris!
I'm going to assume you meant questions about my process, rather than Alberto's.
Here's a good start:
Wikipedia
1. No. CEBs are like "green bricks"- they're unfired.
2. If you don't mix anything else in, then curing time = drying time. Depending on the weather, it's a few days.
3. Yes. These are susceptible to water. People do different things to mitigate that. I've tried adding 10% portland cement, and found it to make bricks that are QUITE waterproof. I've destroyed a few with freeze/thaw spalling, but not just water.
4. Yes. Lots and lots and lots and lots of building have been built with CEBs. Practically all the buildings at the Auroville Earth Institute are CEB built. Midwest Earth Builders in Wisconsin is making CEB buildings professionally. As far as North Carolina's building codes, I sure don't know. There are sections is most model building codes for adobe. These, being unfired clay bricks, would be subject to the codes that talk about adobe.
5. Yes they have, but I think it's only been done on hydraulic machines, not mechanical pressers. I can't seem to put my finger on a link right now.