Study on Asphalt Mixture Anti-rutting Based on Materials and Test Methods
As one of the common diseases on asphalt pavement,rut disease has attracted much attention at home and abroad.Based on different research directions,various research institutions have conducted a large amount of relat-ed research on rutting of asphalt mixtures.Based on two aspects of materials and testing methods,the research progress on anti-rutting asphalt mixtures was reviewed in this paper.The asphalt mixture for asphalt pavement was mainly composed of asphalt and aggregates.Therefore,a summary of different modified asphalt was conducted,and the impact of different modified asphalt on the anti-rutting performance of asphalt mixture was analyzed.A study was conducted on the aggregates in asphalt mixtures based on factors such as gradation,morphology,and motion state.The effects of different aggregates on the anti-rutting deformation performance of asphalt mixtures were summarized.At present,the testing methods mainly focus on indoor testing methods and numerical simulation testing methods.Various methods such as rutting test and indirect tensile test have been summarized by indoor testing,which can be used to evaluate the anti-rutting performance;Two methods of finite element and discrete element were introduced based on numerical simulation experiments,and the characteristics were summarized.In addition,other methods of estimation methods and AI algorithms were reviewed to provide theoretical and technical references for related re-search on the anti-rutting of asphalt pavement.
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