基于室内加速磨耗的环氧沥青超薄磨耗层抗滑耐久性研究
Study on Skid Resistance Durability of Epoxy Asphalt Ultrathin Wearing Course Based on Indoor Accelerated Wear
张艳 1周礼节 2曹超飞 3喻雪芳 3艾长发3
作者信息
- 1. 成都高速公路建设开发有限公司 成都 610041
- 2. 成都市路桥经营管理有限责任公司 成都 610052
- 3. 西南交通大学土木工程学院 成都 610031;道路工程四川省重点实验室 四川 成都 610031
- 折叠
摘要
文中基于湿轮磨耗试验研究磨耗时间、污染物洒布量对环氧超薄抗滑磨耗层抗滑性能的影响,采用延长加速加载磨耗试验试件的BPN、TD以及磨耗质量损失率来评价超薄磨耗层的路用性能.结果表明:环氧超薄抗滑磨耗层的剥落率与磨耗温度、磨耗时间以及骨料粒径成正相关,且在高温高磨耗时间的情况下剥落率仍小于0.6％,环氧超薄抗滑磨耗层随着污染物洒布量的增加BPN均存在不同程度的下降,其中液体污染物比固体沙土对路面抗滑性能衰减的影响更显著.环氧超薄抗滑磨耗层在经过20万次的作用后超薄抗滑磨耗层的BPN、TD以及磨耗质量损失率均体现出优异性.
Abstract
Based on the wet wheel wear test,the effects of wear time and pollutant distribution on the anti-sliding performance of epoxy ultra-thin anti-sliding wear layer were studied.BPN,TD and loss rate of wear mass of extended accelerated loading wear test specimens were used to evaluate the road performance of ultra-thin wear layer.The results show that the peeling rate of epoxy ultra-thin anti-sliding wear layer is positively correlated with wear temperature,wear time and aggregate particle size,and the peeling rate is still less than 0.6％at high temperature and high wear time.The BPN of epoxy ultra-thin anti-skid wear layer decreases in different degrees with the increase of pollutant dis-tribution,and the influence of liquid pollutants on the attenuation of pavement anti-skid performance is more significant than that of solid sand.After 200,000 times of application,the BPN,TD and wear mass loss rate of the ultra-thin anti-sliding epoxy wear layer are excellent.
关键词
环氧沥青超薄铺装/路表抗滑/加速磨耗试验/抗滑耐久性Key words
ultra-thin epoxy asphalt pavement/anti-slip road surface/accelerated wear test/anti-slid-ing durability引用本文复制引用
基金项目
创新科研项目(KYL202109-0060)
四川省科技计划项目(2021JDTD0023)
四川省科技计划项目(2021YJ0065)
国家自然科学基金面上项目(51878574)
出版年
2024
NETL
NSTL
万方数据