Japan Society of Civil Engineers 2026 Annual Meeting
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Session Details

Treatment and Disposal of Radioactive Waste and Radioactively Contaminated Waste

放射性廃棄物・放射性物質汚染廃棄物等の処理・処分（その5）

Thu. Sep 3, 2026 1:30 PM - 2:50 PM JST
Thu. Sep 3, 2026 4:30 AM - 5:50 AM UTC
Room 33, 3rd Floor, Building 3 (Hokkai-Gakuen University)
1:30 PM - 1:40 PM JST(4:30 AM - 4:40 AM UTC)

[CS12-31]Change of water retention of bentonite subjected to carbon dioxide

*Tomoyoshi Nishimura1, Koseki Junichi2 (1. Ashikaga University, 2. RAITO KOGYO CO.,Ltd.)
1:40 PM - 1:50 PM JST(4:40 AM - 4:50 AM UTC)

[CS12-32]Compaction-induced variability in the 80/20 sand-bentonite mixture as a gas-permeable backfill material

*Toshihiro Sakaki1, Ken Kawamoto2, Thomas Spillmann3 (1. ESE Consulting LLC, 2. Saitama University, 3. Nagra)
1:50 PM - 2:00 PM JST(4:50 AM - 5:00 AM UTC)

[CS12-33]Investigation of the effect of exhaust conditions on the saturation process of bentonite-based materials in radioactive waste disposal repositories

*Takashi Sekiguchi1, Tomiki Takahashi2, Kunlin Ruan2, Hideo Komine2 (1. TODA Corporation, 2. Waseda University)
2:00 PM - 2:10 PM JST(5:00 AM - 5:10 AM UTC)

[CS12-34]Expression of the temperature-dependent behavior of bentonite using an elastoplastic constitutive model incorporating temperature effects

*Hiromi Ando1, Yusuke Takayama1, Shinya Tachibana1 (1. KOBE University)
2:10 PM - 2:20 PM JST(5:10 AM - 5:20 AM UTC)

[CS12-35]On the impact of long-term thermal treatment on three-dimensional swelling of bentonite

*QINGYUAN ZHAO1, Kunlin RUAN1, Hideo KOMINE1, Daichi ITO2 (1. Waseda University, 2. Ibaraki University)
2:20 PM - 2:30 PM JST(5:20 AM - 5:30 AM UTC)

[CS12-36]Permeability and swelling deformation tests of compacted bentonite heated for short periods under steam or saturated conditions

*Yasutaka Watanabe1, Ema Yoshikawa1, Misato Shimbashi1, Shingo Yokoyama1 (1. Central Research Institute of Electric Power Industry)
2:30 PM - 2:40 PM JST(5:30 AM - 5:40 AM UTC)

[CS12-37]Study on Simultaneous Measurement Technology of Temperature and Water Pressure Using Optical Fiber Cables

*Shoji Seno1, Nanako Sekiguchi1, Michio Imai1, Hiroyuki Hirano1 (1. KAJIMA CORPORATION)
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