ZHAN Xiao-li, ZHANG Xiao-ning, WANG Duan-yi, LU Liang. STUDY ON NONLINEAR VISCOELASTIC CONSTITUTIVE EQUATION OF MODIFIED ASPHALT AND ITS APPLICATIONS[J]. Engineering Mechanics, 2009, 26(4): 187-191.
Citation: ZHAN Xiao-li, ZHANG Xiao-ning, WANG Duan-yi, LU Liang. STUDY ON NONLINEAR VISCOELASTIC CONSTITUTIVE EQUATION OF MODIFIED ASPHALT AND ITS APPLICATIONS[J]. Engineering Mechanics, 2009, 26(4): 187-191.
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STUDY ON NONLINEAR VISCOELASTIC CONSTITUTIVE EQUATION OF MODIFIED ASPHALT AND ITS APPLICATIONS

  • (School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, Guangdong 510640, China)

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  • Received Date: December 31, 1899
  • Revised Date: December 31, 1899
    Abstract
  • To analyze the nonlinear viscoelastic properties of modified asphalt, dynamic viscoelastic constitutive equations are studied, consisting of generalized Maxwell model and fractional calculus Maxwell model. The two kinds of constitutive equations are compared based on the fitting result. The result showing generalized Maxwell model can fit well the viscoelastic performance of modified asphalt except for both sides of the curve. Therefore, it is unsuitable to predict viscoelastic properties using generalized Maxwell model. It is concluded that the fractional calculus model can fit accurately the viscoelastic performance of modified asphalt and the fitting result can be used to evaluate the viscoelastic performance of modified asphalt.
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    LU Liang

    • (School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, Guangdong 510640, China)

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