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Study on the Strain Fatigue Threshold of Asphalt Mixture for Long-Life Asphalt Pavement
Determination of the strain fatigue threshold of asphalt mixtures is very important for the design of long-life asphalt pavement. A new method to determine the strain fatigue threshold of an asphalt mixture has been put forward in this paper by the establishment of a three-parameter power function model based on the conventional two—parameter model (ε-N). The strain fatigue threshold was determined by the analyzing the AC-25 and ATB-25 asphalt mixture test results of the three-parameter power function model. This study has shown that the strain fatigue threshold exists in low-strain conditions. The strain fatigue threshold of AC-25 and ATB-25 are 78μVegr; and 59μVegr; respectively,with 6% air voids. The fatigue limit strain for AC-25 is between 78 and 95μVegr;, and for ATB-25 is between 59 and 75μVegr;, which are recommended by Liaoning Shenyang in China.
Study on the Strain Fatigue Threshold of Asphalt Mixture for Long-Life Asphalt Pavement
Determination of the strain fatigue threshold of asphalt mixtures is very important for the design of long-life asphalt pavement. A new method to determine the strain fatigue threshold of an asphalt mixture has been put forward in this paper by the establishment of a three-parameter power function model based on the conventional two—parameter model (ε-N). The strain fatigue threshold was determined by the analyzing the AC-25 and ATB-25 asphalt mixture test results of the three-parameter power function model. This study has shown that the strain fatigue threshold exists in low-strain conditions. The strain fatigue threshold of AC-25 and ATB-25 are 78μVegr; and 59μVegr; respectively,with 6% air voids. The fatigue limit strain for AC-25 is between 78 and 95μVegr;, and for ATB-25 is between 59 and 75μVegr;, which are recommended by Liaoning Shenyang in China.
Study on the Strain Fatigue Threshold of Asphalt Mixture for Long-Life Asphalt Pavement
Zhu, Jian-ping (author) / Fan, Xing-hua (author) / Zhang, Min-jiang (author) / Gao, Shuang (author)
Tenth International Conference of Chinese Transportation Professionals (ICCTP) ; 2010 ; Beijing, China
ICCTP 2010 ; 3591-3599
2010-07-22
Conference paper
Electronic Resource
English
Study on the Strain Fatigue Threshold of Asphalt Mixture for Long-Life Asphalt Pavement
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