>alternative to traditional concrete Related: https://news.ycombinator.com/item?id=18487704 https://news.ycombinator.com/item?id=18487704 About the earthship

>alternative to traditional concrete Related: https://news.ycombinator.com/item?id=18487704 https://news.ycombinator.com/item?id=18487704 About the earthship I mentioned in that comment, which was made using non-traditional materials and techniques: I don't remember what materials were used, except that, IIRC, the creator said it was not cob. Mud was used, of course, that was clear from looking at it. So was glass for the windows. I mean the other materials - not sure about those. But it looked sturdy, and was huge.