Shear properties of interface between argillaceous slate sand and concrete

被引：1
|
作者：
Zhou Y. [1 ,2 ]
Peng Z. [1 ,2 ]
Yin Q. [3 ]
Chen L. [4 ]
Chen J. [5 ]
Zhang C. [1 ,2 ]
机构：
[1] School of Geosciences and Info-Physics, Central South University, Changsha
[2] Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring, Central South University, Changsha
[3] School of Civil Engineering, Hunan City University, Yiyang
[4] Department of Construction & Engineering, Hunan Institute of Science and Technology, Yueyang
[5] School of Information and Electrical Engineering, Hunan University of Science and Technology, Xiangtan
来源：
Zhongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Central South University (Science and Technology) | 2019年 / 50卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Argillaceous slate sand; Concrete; Interface shear properties; Moisture ratio;
D O I：
10.11817/j.issn.1672-7207.2019.09.020
中图分类号：
学科分类号：
摘要：
To study the influences of moisture ratio on the interface shear mechanical properties, large-scale direct shear tests were designed by using large-scale direct shear apparatus to test shear characteristics of interface between slate sand and concrete under different moisture ratio. The test results show that with the increase of moisture ratio, the shear stress strength, friction angle, shear stiffness coefficient and residual shear stress strength decrease remarkably, and the maximum reduction exceeds 30%. The cohesion first increases slowly, and then decreases rapidly by 19.1%. With the increase of moisture ratio, the shear failure displacement increase remarkably by 65%. The moisture ratio of the argillaceous slate sand has great influence on the shear strength, the shear deformation and the shear stiffness of the interface. © 2019, Central South University Press. All right reserved.
引用
收藏
页码：2233 / 2241
页数：8
相关论文
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