Oral presentation

[3G01-03] Geological Environment

Wed. Mar 15, 2023 9:45 AM - 10:35 AM Room G (13 Bildg.1F 1311)

Chair:Tatsumi Arima(Kyushu Univ.)

9:45 AM - 10:00 AM

[3G01] Porosity and Permeability changes with Solute Deposition Caused a drying processes around the repository

*Kanta Hongo¹, Tsugumi Seki¹, Taiji Chida¹, Yuichi NIIBORI¹ (1. Tohoku University)

10:00 AM - 10:15 AM

[3G02] Adsorption of Metal Ions on a Pre-Neogene Sedimentary Rock

*Linyi Hou¹, Kanako Toda¹, Takumi Saito¹ (1. UTokyo)

10:15 AM - 10:30 AM

[3G03] Study on the treatment of changes in topography and repository depth due to uplift and erosion in nuclide migration evaluation

*Satsuki Kabasawa¹, Michihito Sakamoto², Yuta Takahashi¹, Masaaki Yamaguchi¹ (1. JAEA, 2. Tokai Univ.)

Time reserved for Chair （10:30 AM - 10:35 AM）

Oral presentation

[3G04-08] Migration/Sorption

Wed. Mar 15, 2023 10:35 AM - 12:00 PM Room G (13 Bildg.1F 1311)

Chair:Masaki Takeda(JAEA)

10:35 AM - 10:50 AM

[3G04] Migration of elements in bentonite as filtering media

*Kazuya Idemitsu¹, Yaohiro Inagaki¹, Tatsumi Arima¹ (1. Kyushu university, Faculty of engineering)

10:50 AM - 11:05 AM

[3G05] Effect of Magnesium on the interaction between Europium and Calcium-Silicate-Hydrate under the Condition Saturated with Saline Groundwater

*Ryo Tahara¹, Tsugumi Seki¹, Taiji Chida¹, Yuichi Niibori¹ (1. Tohoku Univ.)

11:05 AM - 11:20 AM

[3G06] Estimation of Deposition Behavior of Supersaturated Silicic Acid in the Presence of Magnesium Ions with Considering Temperature of Disposal Environment

*Masahide Izumiura¹, Taiji Chida¹, Tsugumi Seki¹, Yuichi Niibori¹ (1. Tohoku Univ.)

11:20 AM - 11:35 AM

[3G07] Temperature dependencies of sorption behavior of cations onto biotite flakes

*Rintaro Kobayashi¹, Taiji Chida¹, Tsugumi Seki¹, Yuichi Niibori¹ (1. Tohoku Univ.)

11:35 AM - 11:50 AM

[3G08] Study on elucidation of the mechanism of concrete contamination by radioactive materials and estimation of contamination distribution (15)

Apparent diffusion coefficients of Cs and Sr to mortar and concrete made with river gravel from the Abukuma River under actual contamination conditions

*Kazuo Yamada¹, Norio Muranaka², Keita Himori², Hideyuki Hokora³, Sayuri Tomita³, Haruka Aihara⁴, Yasumasa Tojo², Yoshifumi Hosokawa⁵, Go Igarashi⁶, Ippei Maruyama⁷ (1. NIES, 2. Hokkaido Univ., 3. Taiheiyo Consultant, 4. JAEA, 5. Taiheiyo Cement, 6. Nagoya Univ., 7. UTokyo)

Time reserved for Chair （11:50 AM - 12:00 PM）

Oral presentation

[3G09-13] Waste

Wed. Mar 15, 2023 2:45 PM - 4:10 PM Room G (13 Bildg.1F 1311)

Chair:Taiji Chida(Tohoku Univ.)

2:45 PM - 3:00 PM

[3G09] Mortar filling solidification of aluminum metal contained in low-level radioactive waste

(1)Issues and countermeasures for aluminum products in general

*Hideaki Nishiura¹, Mitsunori Hanabata¹, Masashi Kitamura¹, Masatsugu Kato¹, Mitsuru Iwasaki², Mitsushi Motoyama³ (1. The Kansai Electric Power Co., Inc., 2. Tohoku Electric Power Co., Inc., 3. JGC HOLDINGS CORPORATION)

3:00 PM - 3:15 PM

[3G10] Mortar filling solidification of aluminum metal contained in low-level radioactive waste

(2)Countermeasures currently under consideration (low-alkaline solidification materials, application of paint)

*mitsushi motoyama¹, mitsunori hanabata², masatsugu kato², mitsuru iwasaki³ (1. JGC, 2. KEPCO, 3. Tohoku-EPCO)

3:15 PM - 3:30 PM

[3G11] Development of a New Theoretical Scaling Factor Method for Estimation of Fuel Debris Difficult-to-Analyze Nuclide Inventory

*Masahiro Sakamoto^1,2, Keisuke Okumura¹, Junichi Kaneko^2,1, Masato Mizokami³, Shinya Mizokami³ (1. JAEA, 2. Hokkaido Univ., 3. TEPCO HD)

3:30 PM - 3:45 PM

[3G12] The Effect of Structural Interaction of Radionuclides and Sodium Alkalinized Metakaolin-Based Geopolymer on Leakage from Host Matrix

*ANIL CAN YILDIRIM¹, KANAKO TODA¹, TAKUMI SAITO¹ (1. University of Tokyo)

3:45 PM - 4:00 PM

[3G13] In-situ measurement of density distribution of buffer material swelling process using X-ray Computed Tomography

*Norihisa OSAWA¹, Tomoko ISHII^1,2, Kenji ISHII³, Daisuke HAYASHI⁴, Yuichi NIIBORI² (1. Taiheiyo Consultant, 2. Tohoku Univ., 3. KAJIMA, 4. RWMC)

Time reserved for Chair （4:00 PM - 4:10 PM）

Sessions

V. Nuclear Fuel Cycle and Nuclear Materials » 505-2 Waste Disposal and Its Environmental Aspects

[3G01-03] Geological Environment

[3G01] Porosity and Permeability changes with Solute Deposition Caused a drying processes around the repository

[3G02] Adsorption of Metal Ions on a Pre-Neogene Sedimentary Rock

[3G03] Study on the treatment of changes in topography and repository depth due to uplift and erosion in nuclide migration evaluation

[3G04-08] Migration/Sorption

[3G04] Migration of elements in bentonite as filtering media

[3G05] Effect of Magnesium on the interaction between Europium and Calcium-Silicate-Hydrate under the Condition Saturated with Saline Groundwater

[3G06] Estimation of Deposition Behavior of Supersaturated Silicic Acid in the Presence of Magnesium Ions with Considering Temperature of Disposal Environment

[3G07] Temperature dependencies of sorption behavior of cations onto biotite flakes

[3G08] Study on elucidation of the mechanism of concrete contamination by radioactive materials and estimation of contamination distribution (15)

Apparent diffusion coefficients of Cs and Sr to mortar and concrete made with river gravel from the Abukuma River under actual contamination conditions

[3G09-13] Waste

[3G09] Mortar filling solidification of aluminum metal contained in low-level radioactive waste

(1)Issues and countermeasures for aluminum products in general

[3G10] Mortar filling solidification of aluminum metal contained in low-level radioactive waste

(2)Countermeasures currently under consideration (low-alkaline solidification materials, application of paint)

[3G11] Development of a New Theoretical Scaling Factor Method for Estimation of Fuel Debris Difficult-to-Analyze Nuclide Inventory

[3G12] The Effect of Structural Interaction of Radionuclides and Sodium Alkalinized Metakaolin-Based Geopolymer on Leakage from Host Matrix

[3G13] In-situ measurement of density distribution of buffer material swelling process using X-ray Computed Tomography

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