State Key Laboratory of Geomechanics and Geotechnical Engineering;
Institute of Rock and Soil Mechanics;
Chinese Academy of Sciences;
Wuhan;
430071;
China;
University of Chinese Academy of Sciences;
Beijing;
100049;
China;
Department of Geoscience;
University of Calgary;
Calgary;
Canada;
Yellow River Engineering Consulting Co.;
Ltd.;
Zhengzhou;
450003;
China;
Clay-rich sandstone; Microscopic properties; Micro-indentation test; Elastic modulus; Slake durability index;