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    Volume 46, Issue 3 (May 2018)

    Evaluation of Nano-ZnO Dispersed State in Bitumen with Digital Imaging Processing Techniques

    (Received 3 August 2016; accepted 23 January 2017)

    Published Online: 2017

    CODEN: JTEVAB

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    Abstract

    Nano-ZnO can be used as the tracer material to mark the asphalt, and the dispersion of nano-ZnO in the asphalt has an important impact on the mark effect; thus, it is important to study the dispersion state of nano-ZnO in asphalt. In order to achieve this goal, a method of sample preparation to make the nano-ZnO particle exposed to the asphalt surface, and a method for evaluating the dispersion state of nano-ZnO based on digital image processing technique, were put forward in this paper. In this quantitative evaluation system, scanning electron microscope and IPP software were used to scan the sample and output data; area ratio variation coefficient, number variation coefficient, and average particle size of nano-ZnO particle were used to evaluate the dispersion of nano-ZnO. Besides that, through the research of the dispersion state, the optimal dispersion conditions of nano-ZnO in asphalt were found out in this paper.

    Author Information:

    Li, R.
    Highway school, Chang’an Univ., Xi’an,

    Dai, Y.
    Highway school, Chang’an Univ., Xi’an,

    Wang, P.
    Highway school, Chang’an Univ., Xi’an,

    Sun, C.
    Highway school, Chang’an Univ., Xi’an,

    Zhang, J.
    Highway school, Chang’an Univ., Xi’an,

    Pei, J.
    Highway school, Chang’an Univ., Xi’an,


    Stock #: JTE20160401

    ISSN:0090-3973

    DOI: 10.1520/JTE20160401

    Author
    Title Evaluation of Nano-ZnO Dispersed State in Bitumen with Digital Imaging Processing Techniques
    Symposium ,
    Committee F40