S2: Water Rock Interaction (Special Session)

4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)

[S2-05] Reaction-induced fracturing and permeability development in MgO-H₂O system<font color="#FF7F27">「発表賞エントリー」</font>

*Hisamu Kasahara¹, Masaoki Uno¹, Atsushi Okamoto¹, Noriyoshi Tsuchiya¹ (1. Tohoku Uni. Environmental Studies)

Keywords:

Hydration,Reaction-induced fracturing,Permeability

To understand the different modes of fracturing in water-rock reactions, it is necessary to clarify the relationship between reaction-induced fracturing and permeability development in hydration reaction. In this research, we conducted hydrothermal flow-through experiments using the samples of sintered periclase (MgO) to investigate internal structural change and permeability development during hydration. From this result, the relationship between reaction-induced fracturing and permeability development was discussed.