Effect of thermal damage on tensile strength and microstructure of granite: a case study of Beishan, China

The physical and mechanical properties of surrounding rock of high level radioactive waste repository are affected by the heat released by nuclide decay. In this paper, the effects of temperature on P-wave velocity, porosity and tensile strength are investigated, the microstructure of the specimens with different temperature is observed utilizing a polarizing microscope. Brazilian splitting tests on the heated specimens combined with the...