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目前我国不少高速公路工程为了提高沥青路面的耐久性,结合本地原材料、气候环境、交通组成等特点,采用柔性基层或者组合式基层沥青路面结构,沥青稳定碎石ATB是这些沥青路面结构中使用的主要基层材料。本文主要研究了基于GTM法的沥青稳定碎石ATB-25的混合料配合比优化设计及其路用性能,研究结果表明,采用ATB-25混合料优化设计的路用性能可以满足设计的要求,为今后在实体工程中的应用提供了理论基础。
At present, in order to improve the durability of asphalt pavement in many expressways in our country, the asphalt orbital composite asphalt pavement structure is adopted based on the characteristics of local raw materials, climate and traffic composition. The asphalt stabilized aggregate (ATB) is used in these asphalt pavement structures The main grass-roots materials. In this paper, we mainly studied the optimization of mix proportion of asphalt stabilized aggregate ATB-25 based on GTM method and its road performance. The results show that the road performance of ATB-25 mixture can meet the design requirements, It provides a theoretical basis for the application in physical engineering in the future.