The effect of rapid cooling on the thermal diffusivity of granite

Thermal diffusivity is an important physical parameter for assessing thermal damage to granite. In this paper, hornblende granite and alkaline granite were subjected to cooling and heating cycles at different temperatures. The quenching cycles of hornblende granite are 1, 5, 10, 15 and 20 times between 250 °C and 650 °C. The quenching cycle of the alkaline granite is 1, 5, 10 and 15 times in the range of 250 °C–450 °C, respectively. The thermal...