'Electric' Concrete Found to De-ice Itself

As the East Coast of the United States continues to dig out from an historic winter storm, researchers say they have developed a kind of concrete surface that melts snow and ice before it accumulates. The secret, say researchers from the University of Nebraska-Lincoln, is passing a tiny amount of electrical current through the concrete, warming it enough to melt winter precipitation. Researcher Chris Tuan accomplished this by adding small amounts of steel shavings and some carbon...

© La Voix de l'Amérique - mardi 26 janvier 2016