摘要
鉴于直投式沥青混合料改性剂具有改性工艺简单、改性效果好的优点,总结了纤维类、高模量剂类2类国内外现阶段主要使用的直投式改性沥青剂,探讨了直投式改性沥青剂的作用机理和沥青混合料的性能,结合路用性能、经济环保性、可操作性、耐久性等指标,指出今后改性剂的研发应以高性能、经济、环保为核心,以聚丙烯腈纤维类改性剂为研究重点。
In view of the simple modification process and good modification effect of the direct-injection asphalt mixture modifier,the fiber-based,high-modulus agents,Duroflex and other direct-injection modified asphalt agents mainly used at home and abroad were summarized in the current study.The mechanism of the direct-injection modified asphalt agent and the performance of the asphalt mixture were also discussed in the study based on the road performance index,the economic and environmental protection index,the maneuverability index,the durability index and other indexes.It is pointed out that the future development of modifiers should focuses on the high-performance and the economical and environmental protection and the development of polyacrylonitrile fiber modifiers should be highlighted.
作者
刘宁
LIU Ning(Qinghai Provincial Highway Research,Survey and Design Institute,Xining 810001,Qinghai,China)
出处
《筑路机械与施工机械化》
2018年第10期50-52,59,共4页
Road Machinery & Construction Mechanization
基金
青海省科技厅科技成果转化项目(2018-SF-139)
作者简介
刘宁(1969-),男,陕西渭南人,高级工程师,主要从事公路工程科研和公路试验检测工作。
