Investigation of fatigue and thermal cracking behavior of rejuvenated reclaimed asphalt pavement binders and mixtures

M Elkashef, RC Williams, E Cochran - International Journal of Fatigue, 2018 - Elsevier
Bio-based rejuvenators are being under extensive study to enhance the properties of aged
binders. Industry professionals and state transportation agencies are wary about
incorporating high amounts of reclaimed asphalt pavements (RAP) into new mixtures owing
to their high stiffness and low creep rate. In this research, a soybean-derived rejuvenator is
used to rejuvenate an extracted stiff RAP binder. The rejuvenator is initially added to a PG58-
28 binder using a 12% dosage. The modified PG58-28 is then blended with an extracted …
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