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材料导报  2022, Vol. 36 Issue (21): 21100120-6    https://doi.org/10.11896/cldb.21100120
  无机非金属及其复合材料 |
新疆严寒区UV老化下的沥青路面抗损劣性能研究
李文博1,2, 张双侠1, 史倩倩1,*, 于明明1
1 新疆农业职业技术学院,新疆 昌吉 831100
2 长沙理工大学公路养护技术国家工程实验室,长沙 410114
Research on Anti-damage Performance of Asphalt Pavement Under UV Aging in Severe Cold Region of Xinjiang
LI Wenbo1,2, ZHANG Shuangxia1, SHI Qianqian1,*, YU Mingming1
1 Xinjiang Agricultural Vocational Technical College, Changji 831100,Xinjiang, China
2 National Engineering Laboratory of Highway Maintenance Technology, Changsha University of Science & Technology, Changsha 410114, China
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摘要 为减缓新疆严酷环境下沥青面层结构性能劣化,在沥青混合料中同时掺加纳米TiO2和玄武岩纤维,通过模拟紫外线辐射试验环境,开展UV老化后的纳米TiO2沥青胶浆三大指标、红外光谱和扫描电镜试验,并对新疆两种典型面层沥青混合料AC-16和SMA-16进行UV老化下的冻融劈裂、高温车辙、半圆弯拉(SCB)和四点弯曲疲劳寿命试验,研究分析纳米TiO2和玄武岩纤维复合增强的沥青混合料结构的抗损劣性能。研究结果表明:3.0%(占沥青质量分数)的纳米TiO2可有效抗阻沥青胶浆老化带来的性能衰减;UV老化的损劣作用会严重削弱AC-16和SMA-16沥青混合料的路用性能和疲劳寿命;添加纳米TiO2和玄武岩纤维能显著提高AC-16和SMA-16的路用性能,并能有效增强UV老化下的沥青混合料结构抗阻冻融损伤、高温变形、低温开裂和疲劳损伤的能力。
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李文博
张双侠
史倩倩
于明明
关键词:  沥青路面  UV老化  纳米TiO2  玄武岩纤维  路用性能  结构损伤    
Abstract: To mitigate the structural performance deterioration of asphalt surface layers under the harsh environment in Xinjiang,by blending the nano-TiO2 and the basalt fibers into the asphalt mixture simultaneously, the experiment of the nano-TiO2 asphalt mastic after UV aging was conducted under a simulated UV-radiation test environment, including three major indicators, infrared spectra and scanning electron microscopy. In this study, four experiments were conducted, including freeze-thaw splitting test, high-temperature rutting test, semicircular bending and pulling (SCB) test, and four-point bending fatigue life test under UV aging on two typical surface asphalt mixtures AC-16 and SMA-16 in Xinjiang. Through these tests, this study aims to analyze the damage resistance of the asphalt mixture structure reinforced with nano-TiO2 and basalt fiber composite. The results show that 3.0% (mass fraction of asphalt) of nano-TiO2 can effectively resist the degradation of asphalt mastic due to aging. The deteriorating effect of UV aging can seriously weaken the road performance and fatigue life of AC-16 and SMA-16 asphalt mixtures. However, by adding nano-TiO2 and basalt fiber, the road performance of AC-16 and SMA-16 can be significantly improved, and also can effectively enhance the ability of asphalt mixture structure under UV aging to resist freeze-thaw damage, high-temperature deformation, low temperature cracking, and fatigue damage.
Key words:  asphalt pavement    UV aging    nano-TiO2    basalt fiber    road performance    structural damage
出版日期:  2022-11-10      发布日期:  2022-11-03
ZTFLH:  U414  
基金资助: 新疆维吾尔自治区自然科学基金(2021D01B70);新疆高校科研计划项目(XJEDU2021Y056)
通讯作者:  * 360284025@qq.com   
作者简介:  李文博,长沙理工大学博士研究生,新疆农业职业技术学院专业教师。2017年6月毕业于新疆大学,获得硕士学位。于2019年9月至今在长沙理工大学学习,主要从事智能路面结构和新材料的研究,以第一或第二(导师一作)作者发表中文核心及以上的学术论文7篇,其中EI检索3篇。
史倩倩,新疆农业职业技术学院讲师。2017年6月毕业于新疆大学,获得硕士学位。主要从事土木工程新型材料和BIM技术的研究,发表学术论文6篇,中文核心及以上期刊2篇。
引用本文:    
李文博, 张双侠, 史倩倩, 于明明. 新疆严寒区UV老化下的沥青路面抗损劣性能研究[J]. 材料导报, 2022, 36(21): 21100120-6.
LI Wenbo, ZHANG Shuangxia, SHI Qianqian, YU Mingming. Research on Anti-damage Performance of Asphalt Pavement Under UV Aging in Severe Cold Region of Xinjiang. Materials Reports, 2022, 36(21): 21100120-6.
链接本文:  
http://www.mater-rep.com/CN/10.11896/cldb.21100120  或          http://www.mater-rep.com/CN/Y2022/V36/I21/21100120
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