Wang Sudi, Yu Weixiao, Miao Yinghao, Wang Linbing
National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, China.
School of Environmental, Civil, Agricultural and Mechanical Engineering, University of Georgia, Athens, GA 30602, USA.
Materials (Basel). 2023 Feb 2;16(3):1280. doi: 10.3390/ma16031280.
Asphalt mixture is a skeleton filling system consisting of aggregate and asphalt binder. Its performance is directly affected by the internal load transfer mechanism of the skeleton filling system. It is significant to understand the load transfer mechanisms for asphalt mixture design and performance evaluation. The objective of this paper is to review the research progress of the asphalt mixture load transfer mechanism. Firstly, this paper summarizes the test methods used to investigate the load transfer mechanism of asphalt mixtures. Then, an overview of the characterization of load transfer mechanism from three aspects was provided. Next, the indicators capturing contact characteristics, contact force characteristics, and force chain characteristics were compared. Finally, the load transfer mechanism of asphalt mixtures under different loading conditions was discussed. Some recommendations and conclusions in terms of load transfer mechanism characterization and evaluation were given. The related work can provide valuable references for the study of the load transfer mechanism of asphalt mixtures.
沥青混合料是一种由集料和沥青结合料组成的骨架填充体系。其性能直接受骨架填充体系内部荷载传递机制的影响。了解荷载传递机制对于沥青混合料设计和性能评价具有重要意义。本文的目的是综述沥青混合料荷载传递机制的研究进展。首先，本文总结了用于研究沥青混合料荷载传递机制的试验方法。然后，从三个方面对荷载传递机制的表征进行了概述。接下来，比较了捕捉接触特性、接触力特性和力链特性的指标。最后，讨论了不同加载条件下沥青混合料的荷载传递机制。给出了关于荷载传递机制表征和评价的一些建议和结论。相关工作可为沥青混合料荷载传递机制的研究提供有价值的参考。
