Changes in the thermodynamic properties of alkaline granite after cyclic quenching following high temperature action

During the development of hot dry rock, the research on thermal fatigue damage caused by thermal shock of cold and heat cycles is the basis that ensures the long-term utilization of geothermal resources, but there are not enough relevant studies at present. Based on this, the thermal damage tests of granite at different temperatures (250, 350, 450 °C) and quenching cycles (1, 5, 10, 15 cycles) were carried out. Preliminary reveals the damage...