基于材料基因组方法的沥青混合料基因特性综述及展望

基于数据驱动的材料基因组方法是未来材料研发的趋势，尤其对于具有复杂材料组成、显著结构随机性和材料分布不均匀性的沥青混合料具有重要的指导意义。为推动沥青混合料基因组方法的应用，综述了影响沥青混合料性能的材料基因组体系及与使用性能的关联。首先，总结了目前材料基因组方法在材料工程领域的应用；然后，介绍了沥青混合料基本材料特征基因，主要包括沥青组分、沥青微观结构、集料矿物组成和集料形貌特征，并分析主要特征基因与材料性能之间的联系；进而，介绍了沥青混合料细观结构特征基因，包括空隙分布、集料分布和集料接触关系，总结了细观尺度上的研究方法及特征基因与沥青混合料性能的联系；最后，展望表征沥青混合料性能的代表性材料基因组体系、基因组数据库、共享平台及数据挖掘方法。

Review and Prospect of Genetic Characteristics of Asphalt Mixture Based on Material Genome Method

The data-driven material genomic method has received increasing interest in the research and development of materials for the future. In particular, it has important guiding significance for asphalt mixtures with complex material compositions, significant structural randomness, and uneven material distribution. In order to promote the application of genomic methods to asphalt mixtures, this paper reviews the research progress of the main genetic characteristics that affect the performance of asphalt mixtures. First, the applications of the material genomic method in material engineering are summarized. Then, the basic material genomic characteristics of asphalt mixtures is introduced, including the asphalt component, asphalt microstructure, aggregate mineral composition, and aggregate morphology, and the relationship between the genomic characteristics and material performance is analyzed. Then, this paper introduces research on the microstructure of asphalt mixtures, including the relationship between void distribution, aggregate distribution, and aggregate contact and summarizes the research methods and the relationship between the characteristic genes and the performance of asphalt mixtures. Finally, a representative material genome system for characterizing the performance of asphalt mixture, genomic database, shared platform, and data mining methods are prospected.