Salt may indeed keep winter roads free of ice, but it also actively degrades them. There may be a way out of the conundrum, however. Drexel University's Dr. Yaghoob Farnam has been experimenting with making "salt-proof" concrete that incorporates waste products generated by coal furnaces and the smelting process.
.. Continue Reading Furnace waste may find use in longer-lasting concreteCategory: Environment
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from New Atlas http://ift.tt/2r0Yrb4
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