凝灰岩与玄武岩骨料SMA面层路用性能研究  

STUDY ON PAVEMENT PERFORMANCE OF SMA OF TUFF AND BASALT AGGREGATE

作　　者：刘美茂 李东 Liu Mei-mao;Li Dong

机构地区：[1]中交一公局集团有限公司,北京100024

出　　处：《建筑技术开发》2025年第4期3-5,共3页Building Technology Development

摘　　要：为解决碱性石料匮乏而性能较好的酸性石料分布广却不能广泛使用的难题,通过骨料物理力学性能、配合比优化设计等方面研究不同岩性材料特性和级配特性,进一步与玄武岩骨料SMA进行耐久性指标对比,验证凝灰岩骨料用于SMA路面的可行性,研究结果可为凝灰岩等偏酸性骨料用于SMA路面提供借鉴。In order to solve the problem that alkaline stone is scarce and has good performance,acid stone with good performance is widely distributed but cannot be widely used,the characteristics and gradation characteristics of different lithologic materials are studied through the physical and mechanical properties of aggregates,the optimal design of mix ratio,etc.,and the durability index is further compared with basalt aggregate SMA,and the feasibility of tuff aggregate for SMA pavement is verified,and the research results can provide reference for tuff and other acidic aggregates for SMA pavement.

关 键 词：凝灰岩 玄武岩 配合比设计 路用性能 

分 类 号：TU414[建筑科学—岩土工程]