基于结构组成形态的沥青混合料路用性能研究

Study on Pavement Performance of Asphalt Mixture Based on Structural Composition

沥青路面作为我国路面结构的重要形式,对我国的道路交通发展有着积极的推动作用。为进一步分析沥青混合料的组成结构形态对沥青路面路用性能的影响,论文分别以AC-13、PAC-13、SMA-13作为典型代表分析了密实–悬浮结构、骨架–空隙结构、密实–骨架结构三种结构类型混合料的路用性能。研究表明骨架–密实类混合料具有更好的承载能力,骨架–空隙类混合料具有更好的高温稳定性,密实–悬浮类混合料具有更好的低温抗裂性和水稳定性,为沥青混合料级配组成设计的选择提供了理论依据与技术支撑。

As an important form of pavement structure in China, asphalt pavement plays a positive role in promoting the development of road traffic in China. In order to further analyze the influence of the composition and structure of asphalt mixture on the road performance of asphalt pavement, the paper analyzes the road performance of three structural types of mixture, namely, dense suspended structure, skeleton void structure and dense skeleton structure, respectively, with AC-13, PAC-13 and SMA-13 as typical representatives. The research shows that the skeleton dense mixture has better bearing capacity, the skeleton void mixture has better high temperature stability, the dense suspension mixture has better low temperature crack resistance and water stability, which provides theoretical basis and technical support for the selection of asphalt mixture gradation design.