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dc.contributor.authorMeroni, Fabrizioen
dc.contributor.authorFlintsch, Gerardo W.en
dc.contributor.authorDiefenderfer, Brian K.en
dc.contributor.authorDiefenderfer, Stacey D.en
dc.date.accessioned2020-12-10T19:45:56Zen
dc.date.available2020-12-10T19:45:56Zen
dc.date.issued2020-12-10en
dc.identifier.citationMeroni, F.; Flintsch, G.W.; Diefenderfer, B.K.; Diefenderfer, S.D. Application of Balanced Mix Design Methodology to Optimize Surface Mixes with High-RAP Content. Materials 2020, 13, 5638.en
dc.identifier.urihttp://hdl.handle.net/10919/101075en
dc.description.abstractThe most common use of reclaimed asphalt pavement (RAP) is in the lower layers of a pavement structure, where it has been proven as a valid substitute for virgin materials. The use of RAP in surface mixes is more limited, since a major concern is that the high-RAP mixes may not perform as well as traditional mixes. To reduce risks or compromised performance, the use of RAP has commonly been controlled by specifications that limit the allowed amount of recycled material in the mixes. However, the ability to include greater quantities of RAP in the surface mix while maintaining a satisfying field performance would result in potential cost savings for the agencies and environmental savings for the public. The main purpose of this research was to produce highly recycled surface mixes capable of performing well in the field, verify the performance-based design procedure, and analyze the results. To produce the mixes, a balanced mix design (BMD) methodology was used and a comparison with traditional mixes, prepared in accordance with the requirements of the Virginia Department of Transportation’s volumetric mix design, was performed. Through the BMD procedure, which featured the indirect tensile cracking test for evaluating cracking resistance and the Asphalt Pavement Analyzer (APA) for evaluating rutting resistance, it was possible to obtain a highly recycled mix (45% RAP) capable of achieving a better overall laboratory performance than traditional mixes designed using volumetric constraints while resulting in a reduction in production cost.en
dc.format.mimetypeapplication/pdfen
dc.language.isoenen
dc.publisherMDPIen
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleApplication of Balanced Mix Design Methodology to Optimize Surface Mixes with High-RAP Contenten
dc.typeArticle - Refereeden
dc.date.updated2020-12-10T14:11:59Zen
dc.description.versionPublished versionen
dc.contributor.departmentVirginia Tech Transportation Instituteen
dc.title.serialMaterialsen
dc.identifier.doihttps://doi.org/10.3390/ma13245638en
dc.type.dcmitypeTexten


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Creative Commons Attribution 4.0 International
License: Creative Commons Attribution 4.0 International