High-temperature mechanical, physical and Thermal properties of granitic rocks— A review

Abstract

The knowledge of high-temperature mechanical and transport properties of granitic rocks is required to understand and model a number of processes in the earth's crust such as: folding, geothermal activity, magmatic intrusions, and plate tectonics. The temperature range of interest goes well beyond the 250°C limit considered in conventional high level nuclear waste disposal, and exceeds the melting point of the rocks. An extensive literature review was performed to assemble data on the following properties: modulus, Poisson's ratio, tensile strength, compressive strength, viscosity, thermal expansion, density, permeability, melting temperature, heat of fusion, specific heat, thermal conductivity and thermal diffusivity. It is expected that this information will facilitate an assessment of future research needs in the thermomechanical characterization of granitic rocks, and will be of immediate use to scientists involved in the modeling of several geological phenomena.