The volumetric properties of drainage layer mixtures are important parameters to pavement design but hard to determine due to large air void contents. The currently available methods including Dimensional method, Parafilm method and vacuum sealing method to determine the specific gravity and consequently the air void content of the asphalt-treated permeable base (ATPB) mixture have been compared, and the most feasible test method to determine the air void content of the ATPB specimens has been recommended. It is found that significant difference exists among these methods as the air void content increases. The ANOVA suggests that for specimens of 24% or larger air void contents the vacuum sealing method should be chosen for better results. The permeability of two typically used drainage layer mixtures of Virginia and Oklahoma was also determined in the laboratory and correlated with volumetric characteristics.


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    Title :

    Determining volumetric properties and permeability of asphalt-treated permeable base mixtures




    Publication date :

    2016




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English



    Classification :

    BKL:    56.24 / 56.24 Straßenbau




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