[CS12] 放射性廃棄物・放射性物質汚染廃棄物等の処理・処分（その4） | Japan Society of Civil Engineers 2026 Annual Meeting

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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4）

Thu. Sep 3, 2026 11:00 AM - 12:20 PM JST
Thu. Sep 3, 2026 2:00 AM - 3:20 AM UTC

Room 33, 3rd Floor, Building 3 (Hokkai-Gakuen University)

11:00 AM - 11:10 AM JST(2:00 AM - 2:10 AM UTC)

[CS12-24]Differences in the influence of seawater on the permeability and swelling pressure of bentonite from Tsukinuno and Dobuyama

*Ema Yoshikawa¹, Yasutaka Watanabe¹, Shingo Yokoyama¹ (1. Central Research Institute of Electric Power Industry)

11:10 AM - 11:20 AM JST(2:10 AM - 2:20 AM UTC)

[CS12-25]Saline Water Infiltration Analysis of Unsaturated Bentonite Using a
Model that Distinguishes Interlayer Pores from External Pores

*Shota DEKOJI¹, Yusuke Takayama¹, Shinya Tachibana¹, Yutaka Sugita² (1. Kobe university, 2. Japan Atomic Energy Agency)

11:20 AM - 11:30 AM JST(2:20 AM - 2:30 AM UTC)

[CS12-26]Experimental Study on the Heterogeneity of Penetrated Bentonite in Pores

*Chiharu Urano¹, Hideo Komine¹, Kunlin Ruan¹, Daichi Ito² (1. Waseda University, 2. Ibaraki University)

11:30 AM - 11:40 AM JST(2:30 AM - 2:40 AM UTC)

[CS12-27]Validation of a THMC coupled model with integrated chemical solvers for predicting hydraulic permeability

*Tomoki Sakashita¹, Sho Ogata², Mamoru Kikumoto¹, Hideaki Yasuhara¹, Hiromasa Iwai¹ (1. Kyoto University, 2. Osaka University)

11:40 AM - 11:50 AM JST(2:40 AM - 2:50 AM UTC)

[CS12-28]A Study on the Permeability of Cracked Zones in Cementitious Components of Radioactive Waste Disposal Facilities

*Kenta Kagami¹, Toyoharu Nawa², Taro Mizuno³ (1. Nuclear Regulation Authority (NRA), 2. Nihon Kasetsu Co., 3. TAKEMOTO OIL&FAT CO.,LTD.)

11:50 AM - 12:00 PM JST(2:50 AM - 3:00 AM UTC)

[CS12-29]A Study on the Selection of Mix Proportions for the Cement-Based Solidification of Incineration Fly Ash

*Hiroshi Nemoto¹, Satohito Toguri¹, Isamu Norimatsu¹, Yusuke Baba² (1. Shimizu Corporation, 2. Tokai University)

12:00 PM - 12:10 PM JST(3:00 AM - 3:10 AM UTC)

[CS12-30]XAFS Analysis of Zn Speciation in Cement-Solidified Non-Contaminated Molten Fly Ash

*Yuto Imaizumi¹, Kazuo Yamada², Hayato Takahashi³, Takahito Yasukochi⁴, Ippei Maruyama⁵, Shintaro Miyamoto³ (1. Graduate School, Tohoku University, 2. National Institute for Environmental Studies, 3. Tohoku University, 4. Graduate School, Hokkaido University, 5. Tokyo University)

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