Laboratory acousto-mechanical study into moisture-induced changes of elastic properties in intact granite” by Wu et al.
Researchers at the RPMLab used a combination of laboratory methods to better understand the effects of moisture ingress into nano-porous granites.
The novel combination of digital image correlation and ultrasonic methods allowed a better understanding of the acousto-mechanical response induced by increased saturation of the fine-grained granite pore space. It was found that the rock did not follow Gassmann's theory, which has been shown to work well for nanoporous glass, due to the additional presence of microcracks in the geomaterial. This research conducted by Dr. Rui Wu, Dr. Selvadurai and collaborators helps to understand critical changes in material properties induced by fluids in near-surface conditions. This is important when investigating the effects of, for example, rainfall on slope stability problems. external page https://doi.org/10.1016/j.ijrmms.2023.105511
