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Interesting off-beat find via kris de kecker’s No Tech Magazine, which today linked to WIKI-style and PDF versions of Klaus Grasser and Gernot Minke’s 1990 book Building With Pumice. Turns out pumice, a foamy igneous rock, often tan in color and generally known for its ability to float in water, is both plentiful, in many parts of the world, and has many desirable properties as a concrete aggregate and/or as a solid block material. A bit dry, perhaps (ba-bing!), but interesting reading for alternative construction enthusiasts.

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Sean Michael Ragan

Sean Michael Ragan

I am descended from 5,000 generations of tool-using primates. Also, I went to college and stuff. I am a long-time contributor to MAKE magazine and makezine.com. My work has also appeared in ReadyMade, c’t – Magazin für Computertechnik, and The Wall Street Journal.


  • Anonymous

    In other words, it is a lot like AAC (Aerated Autoclaved Concrete)