基于主结构形成准则的细粒式排水沥青混合料级配优化

本文将基于颗粒填充理论的主结构形成准则应用于细粒式排水沥青混合料的级配设计，在规范规定级配范围内进一步优化主结构粒径范围内的集料含量，以提升集料的骨架结构强度和混合料的高温性能。本文将室内试验和理论分析研究方法相结合，通过骨架贯入试验验证该准则对提升骨架强度的适用性，并通过单轴压缩蠕变试验判断级配骨架强度对高温性能的影响。研究结果表明将主结构形成准则应用于级配设计可提升集料的骨架强度和混合料的高温性能，并且集料的骨架强度与混合料的高温性能有很好的相关性，集料骨架强度越高，混合料的高温性能越好。

Gradation Optimization of Fine-grained Porous Asphalt Mixture Based on Primary Structure Formation Criterion

This paper applied the primary structure formation criterion based on the particle packing theory to the gradation design of fine-grained porous asphalt mixture, optimized the content of the range of the primary structure further within the grade range required by specification in order to enhance the skeleton strength of and improve the high-temperature performance of fine-grained porous asphalt mixture, This paper combined laboratory tests and theoretical analysis research methods to verify the applicability of this criterion to enhance the aggregate strength by the skeleton penetration test, and determined the influence of the skeleton strength of aggregates on the high-temperature performance by the modified uniaxial compression creep test. According to the results, applying the primary structure formation criterion to the gradation design can improve the skeleton strength and the high-temperature performance of fine-grained porous asphalt mixture, and there is a obvious correlation between the two aspects, the larger the skeleton strength, the better the high-temperature performance.