Tetsuro Yoneda

TL;DR: In this article, the authors investigated changes in fluid permeability and associated changes in P-wave and S-wave velocities, at elevated effective pressure for intact, macro-fractured and micro-fracted samples of Seljadur basalt.

TL;DR: In this paper, the authors conducted a comprehensive set of fracture toughness tests on a suite of key rock types in air under different relative humidity and at constant temperature in order to investigate the influence of relative humidity on fracture toughness.

TL;DR: In this paper, the slake durability of argillaceous clastic rocks, especially pyroclastic and sedimentary rocks of Neogene Tertiary age from Japan, was analyzed using optical microscopy, X-ray diffractometry, electron microprobe analysis, and scanning electron microscopy.

TL;DR: In this article, the authors investigated the influence of temperature and relative humidity on subcritical crack growth in sandstone in air and showed that the crack velocity increased by several orders of magnitude when the relative humidity increased threefold or fourfold under a constant temperature at a given stress intensity factor.

TL;DR: The leaching of As and B increased under strongly alkaline conditions because of enhanced desorption and pyrite oxidation while that of Se remained minimal due to its adsorption onto Fe-oxyhydroxides and co-precipitation with calcite.