Compressed earth block, sometimes abbreviated CEB, is a masonry unit formed by compressing moist subsoil, often stabilized with a small proportion of cement or lime, under roughly 3,000 psi (21 megapascals) of press pressure, producing a more uniform and stronger unit than sun-dried adobe. Developed in its modern mechanized form in the mid-twentieth century, it has been promoted since as a low-embodied-energy alternative to fired brick and concrete block, particularly in regions with suitable soil and limited industrial infrastructure, and is laid in courses much like conventional brick or block for load-bearing walls. The Mexican social enterprise Échale has used cement-stabilized earth block, marketed as Ecoblock, to build housing at scale, providing 250,000 housing units across 28 Mexican states.
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Wikimedia FoundationWikipedia: Compressed earth block, introductory paragraph, https://en.wikipedia.org/wiki/Compressed_earth_block
A compressed earth block (CEB), also known as a pressed earth block or a compressed soil block, is a building material made primarily from an appropriate mix of fairly dry inorganic subsoil, non-expansive clay, sand, and aggregate.
Wikipedia: Compressed earth block, Introduction section, on press pressure
Typically, around 3,000 psi (21 MPa) of pressure is applied in compression
Wikipedia: Compressed earth block, Development section, on Echale
The Mexican social enterprise Échale has provided 250,000 housing units, of which 30,000 are new homes, in 28 Mexican states.
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