Salt embedded asphalt could prevent frozen roads

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Every winter, state authorities spend hundreds of millions of dollars and thousands of tons of salt de-icing and clearing roads that have been blocked by snowy weather. Offering a potential solution, a team from Turkey's Koc University have developed a salt-embedded road that could keep roads from freezing in the first place. The material is a combination of bitumen — a major component of asphalt, salt potassium formate and polymer styrene-butadiene-styrene. Lab tests show the material significantly delaying ice formation by releasing de-icing salt for a period of two months. If used on real roads, however, the material would be…

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