NCAT Releases GTR Evaluation Study

The National Center for Asphalt Technology (NCAT) has released a study evaluating the role of ground tire rubber (GTR) in asphalt mixture performances. The study found that GTR can be considered an appropriate asphalt binder modifier to achieve critical high-temperature performance in asphalt mixtures, and that the production method (cryogenic or ambient method) does not affect performance.

“We are optimistic that the study findings will accelerate the use of sustainable material in highway construction,” said Richard Willis, NCAT Assistant Research Professor. “By increasing the use of ground tire rubber, asphalt producers will benefit from price stability as compared to more volatile oil prices which impact the cost of traditional, oil-based polymers. Importantly, ground tire rubber produced cryogenically or ambiently provides high performance and cost benefits in asphalt.”

Click here for a copy of the report.

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