Rubber Makes the Road 011

Rubber Makes the Road 011

The final layer of the road is a driving surface aggregate (DSA) developed by Penn State.

"The DSA provides structural strength and includes an abrasion resistance factor to decrease dust," Abbey explains. "The completed road provides a stable surface for the milk trucks and log trucks and school buses that frequently travel rural roads. And it can be easily maintained by local road crews."

Image: Penn State
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