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    Volume 43, Issue 2 (March 2015)

    Special Issue Paper

    Poisson's Ratio of Hot Asphalt Mixtures Determined by Relaxation and Small Amplitude Oscillation Test

    (Received 16 December 2013; accepted 24 June 2014)

    Published Online: 14 March 2015

    CODEN: JTEVAB

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    Abstract

    One of the basic material characteristics of solids is Poisson's ratio. Its exact knowledge, including its dependence on time, allows us to model the effect of load, with given boundary conditions, on the behavior of material under consideration. Poisson's ratio, or rather the relationship between the longitudinal and transverse strain, has an important implication in engineering mechanical applications (assessment of pavement structure performance). Nowadays, Poisson's ratio is usually used as a constant, based on an incorrect assumption that a hot asphalt mix is a linear elastic material. This paper reports Poisson's ratio as a function of time determined from the relaxation and small amplitude oscillation tests on cylindrical specimens. A hot asphalt mix is considered homogeneous isotropic material and linear theory of viscoelasticity is applied for the experimental determination of the lateral contraction ratio.


    Author Information:

    Zak, Josef
    Faculty of Civil Engineering, Department of Road Structures, CTU in Prague, Prague,

    Stastna, Jiri
    Department of Civil Engineering, Schulich School of Engineering, Univ. of Calgary, Calgary, Alberta

    Vavricka, Jiri
    Faculty of Civil Engineering, Department of Road Structures, CTU in Prague, Prague,

    Milackova, Kristyna
    Faculty of Civil Engineering, Department of Road Structures, CTU in Prague, Prague,

    Kasek, Lukas
    Faculty of Civil Engineering, Department of Road Structures, CTU in Prague, Prague,

    Zanzotto, Ludo
    Department of Civil Engineering, Schulich School of Engineering, Univ. of Calgary, Calgary, Alberta


    Stock #: JTE20130325

    ISSN:0090-3973

    DOI: 10.1520/JTE20130325

    Author
    Title Poisson's Ratio of Hot Asphalt Mixtures Determined by Relaxation and Small Amplitude Oscillation Test
    Symposium ,
    Committee E60