Nomura, S. , Kasaya, T. , Sakoi, Y. , Fukada, H. and Matsumoto, A. 2022. Physical properties of portland cement based concrete exposed at a depth of 3520 m in the Nankai Trough. Acta Polytechnica CTU Proceedings. 33, (Mar. 2022), 411–416. DOI:https://doi.org/10.14311/APP.2022.33.0411.