Editor’s note: This article, distributed by The Associated Press, was originally published on The Conversation website. The Conversation is an independent and nonprofit source of news, analysis and ...

The composition of the asphalt mixture making up a road can determine how safe it is for cars to drive on. Tarik Seker/iStock via Getty Images Plus More than 90% of paved roads in the U.S. are made of ...

Northern Kentucky is part of a statewide experiment testing out rubber-modified asphalt on county roads. Kenton is one of four counties to get a state grant for the project. The modified asphalt uses ...

More than 90% of paved roads in the U.S. are made of asphalt, which is constructed with nonrenewable materials such as petroleum. One way to make paving more sustainable is to recycle old pavement.

Jingtao Zhong receives funding from the Tennessee Department of Transportation (State project number RES2023-15). Baoshan Huang receives funding from the Tennessee Department of Transportation (State ...