Asphalt materials including binder, mortar, and mixture are extensively used in the field of pavement engineering due to their obvious viscoelastic properties. To study the phase-transition temperature ( T p ) of asphalt materials, we apply dynamic mechanical analysis (DMA) to conduct several temperature-sweep mode tests and compare the T p values among these materials with similar sizes. Meanwhile, 27 AC5 mixtures are tested to determine the impact of binder type, gradation, and binder content on T p . Results indicate that the T p of binder and mortar is negative, but that of mixture is positive. Good correlations among T p of binder, mortar, and mixture with the same binder type are observed, showing that binder quality is the key factor affecting T p . Gradation type also affects T p , and the mixture with a finer gradation has a lower T p . Among the AC5 asphalt mixtures, the T p of AR mixture is lower than those of the others, thereby demonstrating better low-temperature performance.


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    Titel :

    Phase-Transition Temperature of Asphalt Materials Based on DMA


    Beteiligte:
    Wang, Xian-he (Autor:in) / Yang, Guang (Autor:in) / Wang, Xu-dong (Autor:in) / Wang, Yan-zhu (Autor:in) / Xiao, Qian (Autor:in)


    Erscheinungsdatum :

    2020-06-01


    Format / Umfang :

    62020-01-01 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt



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