Asphalt Pavement Magazine - May/June 2018 - 22
SPECIAL FOCUS: RECYCLED MATERIALS AND ECO-CONSCIOUS PAVEMENTS A Green Answer for Higher Recycling A mill-and-overlay project in Minnesota tested a rejuvenator as a method of restoring youth to reclaimed asphalt pavement (RAP). By Sandy Lender R esearchers at the National Center for Asphalt Technology (NCAT) in Auburn, Ala., the Minnesota Department of Transportation's MnROAD division, and other esteemed pavement research facilities seek ways to incorporate higher percentages of recycled content Crew members reported easier compaction and cleaner joints with the southbound lanes of County Route 61, which used the mixture dosed with Delta S rejuvenator. 22 * View past issues online at www.naylornetwork.com/nap-nxt in asphalt mixtures without compromising long-term pavement performance. That research often involves adding a rejuvenator or recycling agent to the mixture to restore youth to the reclaimed asphalt pavement (RAP) or reclaimed asphalt shingle (RAS) replacement binder. For Trudy Elsner, P.E., Road & Bridge Program Development
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