Volume 40, Issue 5 (September 2012)

    A Study on Photo-thermal Coupled Aging Kinetics of Bitumen

    (Received 15 March 2012; accepted 30 April 2012)

    Published Online: 2012

    CODEN: JTEOAD

      Format Pages Price  
    PDF Version 4 $25   ADD TO CART


    Abstract

    The effect of photo-thermal coupled aging on the viscosity of bitumen was investigated at three different temperatures and three different ultraviolet (UV) light intensities. The photo-thermal coupled aging kinetic model of bitumen was put forward based on the viscosity of bitumen under different photo-thermal coupled aging conditions. In order to evaluate the extent of aging in bitumen, kinetic parameters based on the aging kinetic model were calculated and compared. The results reveal that UV radiation and heat play a coupled role in accelerating the aging process of bitumen. Photo-thermal coupled aging has a greater influence on the aging rate of bitumen than single factor aging. A higher aging temperature and UV intensity have a more pronounced effect on the photo-thermal coupled aging, which leads to an obvious acceleration of the aging reaction rate.


    Author Information:

    Wang, Hui
    State Key Laboratory of Silicate Materials for Architectures, Wuhan Univ. of Technology, Wuhan,

    Feng, Zhengang
    State Key Laboratory of Silicate Materials for Architectures, Wuhan Univ. of Technology, Wuhan,

    Zhou, Bo
    State Key Laboratory of Silicate Materials for Architectures, Wuhan Univ. of Technology, Wuhan,

    Yu, Jianying
    State Key Laboratory of Silicate Materials for Architectures, Wuhan Univ. of Technology, Wuhan,


    Stock #: JTE20120065

    ISSN: 0090-3973

    DOI: 10.1520/JTE20120065

    ASTM International is a member of CrossRef.

    Author
    Title A Study on Photo-thermal Coupled Aging Kinetics of Bitumen
    Symposium , 0000-00-00
    Committee D04