中外公路2025，Vol.45Issue(3)：89-95,7.DOI:10.14048/j.issn.1671-2579.2025.03.011
硅烷偶联剂改性玄武岩纤维沥青胶浆流变性能研究
Study on Rheological Properties of Basalt Fiber Asphalt Mastic Modified with Silane Coupling Agent
刘元德 1郑南翔 2张翔 2高海伟 2张博文2
作者信息
- 1. 甘肃省张掖公路事业发展中心,甘肃 张掖 734000
- 2. 长安大学 公路学院,陕西 西安 710064
- 折叠
摘要
Abstract
To investigate the rheological properties of basalt fiber asphalt mastic,a silane coupling agent was used as a modifier for basalt fibers,and the effects of varying fiber contents were analyzed.Cone penetration tests,bending beam rheological tests,and dynamic shear rheometer tests were conducted to evaluate the rheological properties of asphalt mastic consistency,high-temperature stability,and low-temperature cracking resistance under different temperatures and fiber contents.The findings show that the silane-coupled basalt fibers enhance the shear strength and consistency of asphalt mastic.After modification,the phase angle decreases;elastic response increases,and complex modulus improves.Adsorption capacity between fibers and asphalt increases significantly,enhancing high-temperature deformation resistance and low-temperature cracking resistance of asphalt.The optimal fiber content for silane-coupled basalt fibers is approximately 2.6%.关键词
沥青胶浆/流变性能/硅烷偶联剂/玄武岩纤维/高温性能/低温抗裂性Key words
asphalt mastic/rheological property/silane coupling agent/basalt fiber/high-temperature performance/low-temperature cracking resistance分类
交通工程引用本文复制引用
刘元德,郑南翔,张翔,高海伟,张博文..硅烷偶联剂改性玄武岩纤维沥青胶浆流变性能研究[J].中外公路,2025,45(3):89-95,7.
