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Author: search.filters.author.Rebollo, Oscar RaúlSubject: search.filters.subject.Asphalt

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    Fatigue evaluation of asphalts highly modified with recycled tire rubber
    (2023-04) Zapata Ferrero, Ignacio; Rebollo, Oscar Raúl; Rivera, José Julián; Botasso, Hugo Gerardo
    Fatigue resistance is one of the most frequent and most complex problems to predict in asphalt mixtures. Due to its viscoelastic nature, asphalt is the material that presents the greatest contribution to fatigue within the asphalt mixture. The G*sinδ parameter proposed by SUPERPAVE is the most widely used for fatigue evaluation; however, it has its limitations since it does not allow to observe if the sample is damaged, for example. The results of the present work allow to demonstrate the benefit of the incorporation of the recycled tire rubber as a modifier residue of the asphalt, through the analysis with the rheometer through the proposed test. Finally, the cycle curves are made based on the imposed deformations, which show a greater resistance to fatigue in the asphalt, with increasing rates of tire rubber out of use.