摘要
为了评估高粘弹沥青混合料的空隙率对水稳定性的影响,采用非浸水和浸水车辙试验方法,分别把4种不同级配的高粘弹沥青混合料制成不同空隙率的试件进行车辙试验,研究其动稳定度、车辙深度等指标的变化,考察空隙率对沥青混合料水稳定性的影响。研究结果表明,空隙率对高粘弹沥青混合料的浸水车辙水稳定性有较显著的影响,不同级配的高粘弹沥青混合料存在一个与其对应的合理的空隙率范围,使得其能获得较强的抗水损害能力。
In order to evaluate the influence of air voids on the moisture damage of high viscoelastic asphalt mixtures, 4 kinds of high viscoelastic asphalt mixtures had been designed. The Wheel Tracking Test and the Immersion Wheel TrackingTest have been conducted, dynamic stability and rut depth have been measured to investigate the influence of air voids contents on moisture stability. Results show that the air voids affects the moisture damage of high viscoelastic asphalt mixtures significantly. There is a suitable range of air voids with each gradation of high viscoelastic asphalt mixture respectively enabling to bring a good moisture damage resistance.
出处
《长沙理工大学学报（自然科学版）》
CAS
2017年第1期10-16,47,共8页
Journal of Changsha University of Science and Technology:Natural Science
关键词
高粘弹沥青混合料
空隙率
浸水车辙试验
动稳定度
车辙深度
水稳定性
high viscoelastic asphalt mixture
air void content
the immersion wheel trackingtest
dynamic stability
rut depth
moisture stability
