In The Great Pyramid Secret: Egypt’s Amazing Lost Mystery Science Returns author Margaret Morris claims the artificial rock, when mixed with aggregates, “forms concrete that has fooled geologists,” and concludes that the silicate compound represents “an ancient lost art rediscovered by modern science.”
Source: Concrete Products
http://concreteproducts.com/concretecurrents/Pyramid-rooted-concrete-technology-0611/
http://www.margaretmorrisbooks.com
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