Evaluation of low-temperature performance of asphalt paving mixtures |
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| Affiliation: | 1. Highway School, Chang’an University, South Erhuan Middle Section, Xia’n, Shaanxi 710064, China;2. School of Highway, Chang’an University, South Erhuan Middle Section, Xia’n, Shaanxi 710064, China;3. Department of Civil and Environmental Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MA 49931, USA;4. School of Engineering, Monash University, Sunway Campus, Jalan Lagoon Selatan, 47500 Bandar Sunway, Malaysia;1. School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China;2. School of Science, Wuhan University of Science and Technology, Wuhan 430065, China;1. Institute of Road and Bridge Engineering, Dalian Maritime University, Dalian, Liaoning 116026, China;2. Department of Civil and Environmental Engineering, Michigan Technological University, Houghton, MI 49931-1295, USA;3. School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150090, China;1. Technical University of Catalonia, Jordi Girona 1-3, Módulo B-1, 08034 Barcelona, Spain;2. Technical University of Catalonia, Barcelona, Spain |
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| Abstract: | Low temperature cracking is the major damage in asphalt pavement, and many test methods have been used to evaluate the anti-cracking property of asphalt mixture. This paper evaluates the low temperature performance of asphalt mixture using four tests namely: beam bending test, indirect tensile test, contraction coefficient test and thermal stress restrained specimen test. Five types of asphalt mixtures namely: A, B, C, D and E were evaluated. Results show that compared with the thermal stress restrained specimen test, beam bending test, indirect tensile test and contraction coefficient test are not appropriate for the evaluation of asphalt mixtures low temperature performance. Moreover, results of gray relational analysis demonstrate that the bending strain energy density is significantly correlated to fracture temperature. It is reasonable to adopt the critical values of bending strain energy density to evaluate the low temperature performance of asphalt mixture in the absence of fracture temperature. |
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