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Article Navigation >  Journal of Traffic and Transportation Engineering  > 2008  >  8(4): 35-39
MENG Yong-jun, ZHANG Xiao-ning, JIA Juan. Research on zero shear viscosity of asphalt based on different loading modes[J]. Journal of Traffic and Transportation Engineering, 2008, 8(4): 35-39.
Citation: MENG Yong-jun, ZHANG Xiao-ning, JIA Juan. Research on zero shear viscosity of asphalt based on different loading modes[J]. Journal of Traffic and Transportation Engineering, 2008, 8(4): 35-39.
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Research on zero shear viscosity of asphalt based on different loading modes

  • 1.

    Chongqing Pengfang Pavement Engineering Technology Research Co.Ltd., Chongqing 400054, China

  • 2.

    School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, Heilongjiang, China

  • 3.

    School of Traffic and Communications, South China University of Technology, Guangzhou 510640, Guangdong, China

  • 4.

    Guangzhou Municipal Garden Administration Bureau, Guangzhou 510640, Guangdong, China

More Information
  • Author Bio:

    MENG Yong-jun(1981-), male, engineer, PhD, +86-23-60525351, hitmengyj@163.com

  • Received Date: 2008-03-12
  • Publish Date: 2008-08-25
    Abstract
  • In order to obtain rational indexes for appraising the high-temperature performance of asphalt, dynamic loading test and static loading test of asphalt were made, the difference of zero shear viscosity(ZSV) was analyzed under different loading modes, the applicability and feasibility of ZSV were studied, the influence of different rheological models on the fitting parameters of asphalt at high temperature was evaluated.Analysis result shows that the ZSV value of base asphalt can be got by extrapolating the figure scanned by dynamic frequency, while modified asphalt can't enter into viscosity flow state at low shear rate, so its ZSV can't be got directly by extrapolating the figure.ZSV values fitted from static loading are smaller than that from dynamic loading, while the values fitted from dynamic loading based on Carreau model and from long-time static loading based on discrete retardation spectrum have a good correlation, and both of them can be used together as high-temperature indexes of asphalt.

     

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