中外公路2025，Vol.45Issue(3)：54-63,10.DOI:10.14048/j.issn.1671-2579.2025.03.007
宽域空隙率沥青混合料长期渗水性能研究
Long-Term Water Permeability Performance of Asphalt Mixtures under Wide-Scope Void Ratio
摘要
Abstract
In order to compare the water permeability performance of asphalt mixtures with different void ratios after scouring and clogging,self-developed equipment was adopted to conduct vertical water permeability tests,dynamic water scouring-based water permeability tests,water pressure tests,and simulated clogging tests on semi-open-graded DK-13 mixtures with void ratios of 9%,11%,and 13%,as well as open-graded PA-13 mixtures with void ratios of 15%,17%,and 19%.The experimental results show that:① The water permeability performance of the asphalt mixture becomes better as the void ratio increases.The water permeability coefficient changes relatively small after the void ratio of the asphalt mixture reaches 15%,which is attributed to the fact that the water pressure curves on the top and bottom of the specimens basically overlap;② The initial water permeability performance of semi-open-graded asphalt mixtures is much weaker than that of open-graded asphalt mixtures,and the water permeability performance still follows this regularity after dynamic water scouring and clogging test;③ Semi-open-graded asphalt mixture is more prone to clogging,and the degree is more severe.The water permeability coefficient of asphalt mixture with a void ratio of 13%changes the most after scouring.It can be seen that scouring makes asphalt mixtures more easily suffer from water permeability,while clogging makes the opposite regularity.The asphalt mixture with a void ratio of 13%is most affected by scouring.关键词
道路工程/宽域空隙率沥青混合料/长期渗水性能/动水冲刷/堵塞Key words
road engineering/asphalt mixture under wide-scope void ratio/long-term water permeability performance/dynamic water scouring/clogging分类
交通工程引用本文复制引用
陈三喜,关宏信,姚明,莫志炜,姜旺恒..宽域空隙率沥青混合料长期渗水性能研究[J].中外公路,2025,45(3):54-63,10.基金项目
国家自然科学基金资助项目(编号:52078062) （编号:52078062）
