摘要
沥青混合料的老化是一个复杂的过程,影响路面的耐久性和使用寿命。通过直剪和劈裂试验,研究了纤维改性沥青混合料老化后的物理力学指标的变化,并分析了影响沥青混合料老化机理的因素。结果表明纤维能延缓沥青混合料的使用寿命,沥青混合料的老化不但受温度、氧气等外界因素的影响,且与集料、沥青、纤维等内部组分的性能密切相关。
The aging of asphalt mixture is a complex process, which affects the durability and service life of pavement. Through direct shear and splitting test, the physical and mechanical properties of fiber modified asphalt are studied after aging, and the influencing factors of the aging mechanism of asphalt mixture are analyzed. The results showed that giber can prolong the service life of asphalt. Aging of asphalt mixture is not only affected by temperature, oxygen and other external factors, but also closely related to the properties of internal components such as aggregates, asphalt and fiber.
出处
《路基工程》
2011年第6期69-72,共4页
Subgrade Engineering
基金
吉林省教育厅基金项目(2008130)
关键词
纤维
沥青混合料
老化
机理
fiber
asphalt mixture
aging
mechanism
