摘要
总结并评价了沥青混合料抗剪试验方法、抗剪机理及抗剪设计研究现状,对9种剪切试验方法的分析和评价有助于设计、施工和科研人员正确选用这些试验方法。混合料剪切强度由沥青胶泥的性质、集料和沥青界面的剪切强度和集料之间的嵌挤情况共同决定,为提高混合料抗剪性能指出了方向。抗剪设计在应用于工程前尚需深入研究容许剪应力法中相关系数的确定、基于抗剪性能的车辙预估模型的标定等问题。
The paper summarized and evaluated asphalt mixture anti-shear test method,anti-shear mechanism and the anti-shear design reasearch recently.The analysis and evaluation of 9 test methods is helpful for related personnel to choose these test methods appropriately.The properties of asphalt grout,anti-shear strength between asphalt and aggregate interface,and interlocking of aggregates,jointly decide HMA（hot mix asphalt）anti-shear strength and are the orientation to improve HMA anti-shear properties.Further researches are needed before anti-shear design is used in engineering to solve the problems such as the determination of relevant coefficient in tolerable shear stress test method and calibration of rutting prediction models based on HMA anti-shear behaviors.
出处
《中国工程科学》
2010年第4期90-94,共5页
Strategic Study of CAE
关键词
沥青混合料
车辙
抗剪试验
抗剪强度
asphalt mixtures
rutting
shear test
anti-shear strength
