Pretty soon we will demonstrate that we can press 3000 bricks with the CEB prototype two. We have been thinking about our village design. For some time now I was considering earth-sheltered ecotecture, such as this beauty found at undergroundhousing.com:
The only question is, can CEB bricks be utilized in below-grade applications? While as strong as schist or granite when fully cured, the CEB blocks turn into a mudslide when wet. Can we hope to achieve proper water proofing when underground, or do we keep all CEB building above grade? Has anyone heard of CEB brick being used underground? This would be excellent in cold climates, including our own – where earth sheltering could afford zero energy homes. This assumed large earth-moving requirements, but is not a problem in the presence of appropriate, mechanized tools like LifeTrac.