ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners.
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This Product Brief introduces the reader to the Long-Term Pavement Performance Bind (LTPPBind) Online Web-based tool for selecting asphalt binder performance grades (PGs).(1) It explains what the tool is, who can benefit from its use, what its main features are, and how and where potential users can find more information.
Polyphosphoric acid (PPA) is a chemical modifier employed to improve high temperature rheological properties without adversely affecting low temperatu...
Moisture content plays a significant role in the performance of pavements. Variation in the amount of moisture in the subgrade can change the volume o...
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