Compressed Earth Block:
Often called CEB's or pressed adobes, are construction blocks composed of clay, sand, and sometimes a stabilizing ingredient (such as lime or Portland cement).

These blocks are uniform in size and shape due to the fact that the ingrediants are pressed by a hydraulic or lever arm machine.

Compressed Earth Blocks can be entirely natural. As with sundried adobes, compressed adobes add excellent thermal mass that helps alleviate indoor temperature fluctuations. CEBs are denser than sun dried adobes.