Idaho Grancrete
Gadgets
Grancrete LLC
By thescientist Posted on 11.3.2005 2 CommentsSpray Grancrete over a frame of Styrofoam, metal, wood-even woven sugarcane stalks-and in 20 minutes you have a waterproof, fire-resistant structure that has more than twice the strength of traditional concrete and can withstand extreme temperatures without cracking. A liquefied concrete-like mixture of sand, ash, magnesium oxide and potassium phosphate, Grancrete descends from a product developed to encase radioactive waste.
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February 2012: The Future of Fun
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