E-4: Radioactive waste disposal: geological, hydrogeological and geochemical aspects.

[OE4-03] Fe-silicate and -carbonate formations at C-steel – compacted bentonite interface hinders buffer degradation in high-level radioactive waste disposal

*Ryosuke Kikuchi¹, Tatsuya Fujimura², Tsutomu Sato¹, Tsubasa Otake¹, Yoko Ohtomo¹, Takahiro Goto³, Satoru Suzuki³, Naoki Taniguchi⁴, Hiroyuki Suzuki⁴ (1. Faculty of Engineering, Hokkaido University (Japan), 2. Graduate School of Engineering, Hokkaido University (Japan), 3. Nuclear Waste Management Organization of Japan (Japan), 4. Japan Atomic Energy Agency (Japan))

キーワード：Iron-clay, Geological disposal, Smectite, Carbonate