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The snow and ice on asphalt pavement are very dangerous to people,automobiles and airplanes,so melting snow and ice becomes a high profile. Investigation on the asphalt concrete containing conductive fillers has a great contribution to the researches of melting snow and ice. However,it is few to research on the fatigue behavior which is important in the profile. By four-point bending fatigue tests,the specific fatigue models of conductive asphalt concrete were developed. The parameters of three fatigue models were regressed,the three models predicted the fatigue behavior by the strain levels,the strain levels and initial mix stiffness and dissipated energy respectively. In the model of the strain levels,the fatigue life is decreased at the same strain level as the conductive filler is added. The model based on the strain levels and initial mix stiffness reveals that the fatigue life is partly affected by the initial mix stiffness which is influenced by the conductive filler. The model used the dissipated energy approach is adopted to predict the fatigue behavior with the introduction of the impact the conductive filler on the dissipated energy.
The snow and ice on asphalt pavement are very dangerous to people, automobiles and airplanes, so melting snow and ice becomes a high profile. Investigation on the asphalt concrete containing conductive fillers has a great contribution to the researches of melting snow and ice. However, it is few to research on the fatigue behavior which is important in the profile. by four-point bending fatigue tests, the specific fatigue models of conductive asphalt concrete were developed. the parameters of three fatigue models were regressed, the three models predicted the fatigue behavior by the strain levels, the strain levels and initial mix stiffness and dissipated energy respectively. In the model of the strain levels, the fatigue life is decreased at the same strain level as the conductive filler is added. The model based on the strain levels and initial mix stiffness reveals that the fatigue life is partly affected by the initial mix stiffness which is influenced by the conductive filler. The model used the dissipated energy approach is adopted to predict the fatigue behavior with the introduction of the impact of the conductive filler on the dissipated energy.