To analyze influencing factors and evaluation method of low-temperature performance of porous asphalt mixture, first, three kinds of modified binder were chosen as original, thin film aging and pressure aging samples for customary index test and bending beam rheometer (BBR) test at 12 ° C to evaluate low-temperature performance of these modified binders. Then, evaluation of the low-temperature anti-cracking performance of different kinds of porous asphalt mixture was made by thermal stress restrained sample test (TSRST). At the same time, the result of abovementioned TSRST were compared with the TSRST result of samples of the porous asphalt mixtures after long-term aging to evaluate the influence of aging on low-temperature performance of porous asphalt mixtures. The results show that (1) TSRST result of porous asphalt mixtures coincides with creep stiffnesses of BBR test of modified binders; (2) the fracture temperatures of the porous asphalt mixtures increase and their fracture stresses decrease after aging; (3) the fracture stresses of porous asphalt mixtures are just one-third of those of dense-gradation asphalt mixtures while the fracture temperatures almost the same, which indicates that their low-temperature performances are almost the same.


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    Titel :

    Evaluation of Low-temperature Performance of Porous Asphalt Mixture


    Beteiligte:
    Ma, Xiang (Autor:in) / Ni, Fujian (Autor:in) / Chen, Rongsheng (Autor:in) / Wang, Yan (Autor:in)


    Erscheinungsdatum :

    2010-06-15


    Format / Umfang :

    52010-01-01 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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