Strong, lightweight green material could replace concrete, but contains no cement

(PhysOrg.com) -- Each year, coal-burning power plants, steel factories and similar facilities in the United States produce more than 125 million tons of waste, much of it fly ash and bottom ash left over from combustion. Mulalo Doyoyo has plans for that material.

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<p><a href="http://www.physorg.com/news146851488.html">Strong, lightweight green material could replace concrete, but contains no cement</a></p> <p>(PhysOrg.com) -- Each year, coal-burning power plants, steel factories and similar facilities in the United States produce more than 125 million tons of waste, much of it fly ash and bottom ash left over from combustion. Mulalo Doyoyo has plans for that material.</p>