摘要
总结国内外冻融循环和盐冻循环条件对沥青混合料耐久性性能的研究成果,分析了盐溶液浓度、级配、冻融循环次数等对盐冻循环的影响。结果表明,盐侵蚀加速了冻融循环对沥青混合料的影响,随着盐溶液浓度和冻融循环次数的增加,沥青混合料性能劣化越快;沥青混合料空隙率越大,盐冻循环对沥青混合料影响越显著。提出目前沥青混合料盐冻循环劣化研究领域存在的问题,为沥青混合料盐冻循环研究提供一定的基础。
This paper summarizes the domestic and foreign research results on the durability deterioration of asphalt mixture exposed to freeze-thaw cycles and salt freeze-thaw cycles,and analyzes the effects of salt solution concentration,aggregate gradation,and number of freeze-thaw cycles on the salt-freeze cycle.The results show that salt erosion accelerates the impact of the freeze-thaw cycle on the asphalt mixture.With the increase of salt solution concentration and freezing-thawing cycle,the performance of asphalt mixture deteriorates faster.The larger the gap of the asphalt mixture,the more significant the effect of the salt freezing cycle on the asphalt mixture.The larger voidage of asphalt mixture,the more significant the effect of salt-freezing cycle on asphalt mixture.The existing problems in the research field of the salt mixture freezing cycle degradation of the asphalt mixture are put forward,which provides a certain basis for the study of the asphalt mixture salt freezing cycle.
作者
李闯
熊锐
李科宏
宗有杰
蒋汶玉
冯宝珠
纪括
瞿春璞
孟建党
秦浩
LI Chuang;XIONG Rui;LI Ke-hong;ZONG You-jie;JIANG Wen-yu;FENG Bao-zhu;JI Kuo;QU Chun-pu;MENG Jian-dang;QIN Hao(School of Materials Science and Engineering,Chang’an University,Xi’an 710061,China;Nujiang Beautiful Highway Co.,Ltd.,Nujiang of the Lisu Autonomous Prefecture,673100,China;Management Office of Puyang to Hebi Highway Section,Division of Highway,Henan Department ofTransportation,Puyang 457000,China)
出处
《应用化工》
CAS
CSCD
北大核心
2020年第7期1756-1759,共4页
Applied Chemical Industry
基金
国家自然科学基金(51608046)
中国博士后科学基金项目(2014M550476)
云南省交通运输厅2019年科技创新管理咨询研究项目(2019304)
河南省交通运输科技计划项目(2020J-2-3)。
关键词
道路工程
沥青混合料
耐久性劣化
冻融循环
盐蚀作用
road engineering
asphalt mixture
durability deterioration
freeze-thaw cycle
salt erosion
