TIAN Xiao-ge, MO Yi-kui, ZHENG Jian-long. Effect of extracting and reclaiming process on aging degree of asphalt[J]. Journal of Traffic and Transportation Engineering, 2005, 5(2): 23-26.
Citation: TIAN Xiao-ge, MO Yi-kui, ZHENG Jian-long. Effect of extracting and reclaiming process on aging degree of asphalt[J]. Journal of Traffic and Transportation Engineering, 2005, 5(2): 23-26.

Effect of extracting and reclaiming process on aging degree of asphalt

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  • Author Bio:

    Tian Xiao-ge(1970-), male, associate professor, 86-731-5040705, txgly@public.cs.hn.cn

  • Received Date: 2004-09-05
  • Publish Date: 2005-06-25
  • Different aged asphalts were dissolved in trichloroethylene, then were reclaimed with vacuum rotating reclaimer. Systematic test was made, the penetration, softening point, ductility, viscosity, dynamic shear modulus, phase angle, bending creep stiffness and tensile strength of the various aged asphalts and the corresponding reclaimed asphalts at low temperature were analyzed. [HJ] The influence of the extracting and reclaiming process on the aging degree of asphalt was concluded through analyzing the variances of various performance indices of different aged asphalts before and after the extracting and reclaiming process. The test results show that the variances of various performance indices are small for various aged asphalts after the extracting and reclaiming process. Considering the test error, it is concluded that the extracting and reclaiming process has little impact on the aging degree of asphalt binder by using revolution vacuum reclaimer, so the aging degree of asphalt binder can be evaluated using the asphalt reclaimed with revolution vacuum reclaimer.

     

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