摘要
文中分析了冻融循环作用下玄武岩纤维对沥青抗裂性能和水稳定性能的改善效果、沥青混合料力学性能的衰减规律;研究了冻融循环作用下玄武岩改性沥青与基质沥青极限张力的变化规律以及力学性能;同时采用浸水马歇尔、冻融劈裂等方法,对其水稳定性进行了研究。研究发现,沥青中加入玄武岩纤维后,其抗拉张力得到了显著提高,抗压、低温抗裂、水稳性能均得到了明显改善。
The influence of basalt fiber on the anti-asphalt cracking resistance of the freezing and thawing cycle,as well as the law of attenuation of its mechanical properties of asphalt mixture,are explored in this work.The freeze-thaw cycle under the action of basalt modified asphalt and matrix asphalt limit tension change rulewas studied with the helpof MTS universal testing machine,uniaxail compression test andlow-temperature splitting test,to investigate its water stability performance,researchers used a water-immersed Marshall test as well as a freezing and thawing splitting test.The results revealthat,when compared to matrix asphalt,basalt fibre insertion greatly enhances the tensile characteristics of asphalt,as well as the compressive strength,low-temperature cracking resistance,and water stability of asphalt mixes.
作者
冯迪
高信杰
张保林
徐建浩
白岩松
Feng Di;Gao Xinjie;Zhang Baolin;Xu Jianhao;Bai Yansong(Shandong High Speed Road and Bridge International Engineering Co.Ltd.,Jinan,Shandong 250013)
出处
《江西建材》
2023年第11期16-19,共4页
Jiangxi Building Materials
基金
国家自然科学基金《基于彩色图像的沥青路面表面立体数值模拟及其构造评价》(项目编号:51608048)
山东省交通运输科技计划项目《高温高湿服役环境沥青道面抗滑性能提升与施工质量控制技术研究》(项目编号:2021B95)。
关键词
玄武岩纤维
抗拉伸性能
抗压强度
低温抗裂性
水稳定性
Basalt fibres
Tensile properties
Compressive strength
Low-temperature cracking resistance
Water stability properties