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December 20, 2005
Spray-on Concrete
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Within 20 minutes, you can build a waterproof, fire-resistant structure that can withstand extreme temperatures without cracking. How you ask? With Grancrete, a liquefied mixture of sand ash, and other products, which can be sprayed over a frame of metal, wood, or even Styrofoam. Grancrete can speed up the process of building a low-cost shelter by weeks, and could help provide homes to the estimated one billion people who lack currently lack one. |
Posted by geekblue at December 20, 2005 9:06 AM