Enhanced Characterization of RAP for Cracking Performance [Summary]
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2020-05-01
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Abstract:University of Florida researchers evaluated the effect of RAP binder stiffness, fineness, and gradation on cracking resistance to determine whether the current maximum RAP usage in polymer-modified asphalt (PMA) mixtures can be increased. They also examined the effect of RAP on asphalt mixtures made with high polymer (HP) binder. If more RAP could be effectively used, the researchers were also tasked with determining simple, but effective methods of characterizing the RAP for increased usage.
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