摘要
沥青路面在服役过程中,由于长期受到光照、温度、水分、氧气等自然因素的作用而引起沥青的老化、硬化,导致沥青路面路用性能发生衰减,发展沥青路面的抗老化技术对提高沥青路面的性能具有重要意义。为了进一步推进沥青路面老化与抗老化技术的发展,综述了国内外沥青路面老化与抗老化技术的研究现状。首先,介绍了沥青与沥青混合料老化试验方法,包括热氧老化、光氧老化和水老化;其次对沥青的老化规律进行了综述,在宏观性能方面主要包括软化点、针入度、黏度和流变性能等,在微观性能方面主要包括沥青组分、官能团、沥青分子量及表面形貌等;然后对沥青混合料的老化规律进行了阐述,包括其高温和低温性能、疲劳性能及水损害性能;最后对沥青与沥青混合料抗老化的研究进行了综述,从抗老化的材料、工艺、效果方面进行了介绍。研究认为,未来沥青路面老化与抗老化技术可从多种环境因素耦合综合老化试验、微观机理研究、抗老化工艺与评价方法等方向开展进一步研究。
During the service life of asphalt pavements,the aging and hardening of asphalt deteriorates the pavement performance because of the long-term effects of natural factors,such as light,temperature,moisture,and oxygen.The development of antiaging technology for asphalt pavements is significant in improving the performance of asphalt pavements.The research status of aging and antiaging technology was reviewed to promote the advancement of asphalt pavement aging and antiaging technology.First,the aging test methods for asphalt and asphalt mixtures were introduced,including hot oxygen aging,ultraviolet aging,and water aging.Second,the aging parameters of asphalt were reviewed,including the softening point,penetration,viscosity,and rheological properties in macroperformance,and the asphalt component,functional group,molecular weight,and surface morphology in microperformance.In addition,the high-temperature and low-temperature performance,fatigue performance,and moisture susceptibility of asphalt mixtures with aging were described.Finally,previous research on the antiaging of asphalt and asphalt mixtures was reviewed,and the antiaging materials,technology,and effects were described.This study demonstrates that the aging and antiaging technology of asphalt pavements can be further investigated based on comprehensive aging tests combining various environmental factors,including microscopic mechanism,antiaging processes,and evaluation methods.
作者
郭猛
任鑫
焦峪波
梁美琛
GUO Meng;REN Xin;JIAO Yu-bo;LIANG Mei-chen(The Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education,Beijing University of Technology,Beijing 100124,China)
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
2022年第4期41-59,共19页
China Journal of Highway and Transport
基金
国家自然科学基金项目(52078018)
山东省重点技术攻关“揭榜挂帅”项目(2021-KJ-068).
关键词
道路工程
沥青
综述
抗老化
老化
沥青混合料
road engineering
asphalt
review
anti-aging
aging
asphalt mixture
作者简介
郭猛(1987-),男,黑龙江双城人,教授,博士研究生导师,工学博士,博士后,E-mail:gm@bjut.edu.cn;通讯作者:焦峪波(1986-),男,山东青州人,教授,博士研究生导师,工学博士,博士后,E-mail:jiaoyb@bjut.edu.cn。
