Post-consumer scrap rubber offers alternative to oil-derived material in asphalt

ERJ staff report (DS)

Atlanta, Georgia — The US-based National Center for Asphalt Technology (NCAT) has announced the results of a study evaluating the role of ground tyre rubber powder in asphalt mixture performance.

The study indicates that the asphalt manufacturing process, whether cryogenic or ambient, does not impact the performance of the rubber material or, ultimately, the asphalt.

“We are optimistic that the study findings will accelerate the use of sustainable material in highway construction,” said Richard Willis, NCAT’s assistant research professor. “By increasing the use…

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