2026 Fall Meeting
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Session Details

Oral presentationV. Nuclear Fuel Cycle and Nuclear Materials : 505-2 Waste Disposal and Its Environmental Aspects

[1C13-18]Bentonite chemistry

Wed. Sep 9, 2026 4:15 PM - 6:00 PM JST
Wed. Sep 9, 2026 7:15 AM - 9:00 AM UTC
Room C(General Lecture RoomsA 2F RoomA21)
Chair:Kazuki Iijima(JAEA)
4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[1C13]A Study on Swelling Pressure of Bentonite using Thermodynamic modelAcquisitions of Thermodynamic Data of Interlayer Water of Na-Montmorillonite and Model Evaluation

*Kazuki Nagamachi1, Haruo Sato1 (1. OKAYAMA UNIVERSITY)
Comment()
4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)

[1C14]Investigation of the Effects of Aggregate Particle Size Characteristics on the Development of a Hydraulic Conductivity Model for Bentonite Mixtures

*Okuto Nihei1, Ryo Yasuda1, Takeshi Ishiguro2, Masafumi Hirata2 (1. Radioactive Waste Management Funding and Research Center, 2. Maeda Corporation)
Comment()
4:45 PM - 5:00 PM JST(7:45 AM - 8:00 AM UTC)

[1C15]Effects of Ca Ions on Aggregation Behavior of Bentonite Colloids in the Presence of Silicic Acid

*Ryota Sugiki1, Tsugumi Seki1, Taiji Chida1 (1. Tohoku Univ.)
Comment()
5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)

[1C16]Effects of Material Type on Compaction and Swelling Characteristics of Bentonite-Soil Mixtures

*Kinji Yoshimoto1, Hirohito Kikuchi1, Ryo Yasuda1, Takayuki Abe1, Hikaru Oguri2, Ayumu Ito2, Masakazu Chijimatsu2 (1. RWMC, 2. HAZAMA ANDO)
Comment()
5:15 PM - 5:30 PM JST(8:15 AM - 8:30 AM UTC)

[1C17]Evaluation of Alteration Behavior at the OPC Paste/Bentonite Interface and Applicability Assessment of Reactive Transport Modeling Based on 3.5 Year Long-Term Tests

*Sho Nagai1, Ayaka Koike1, Sohtaro Anraku2, Ryohei Kawakita2 (1. NUMO, 2. JAEA)
Comment()
5:30 PM - 5:45 PM JST(8:30 AM - 8:45 AM UTC)

[1C18]Evaluation of Colloid Formation Behavior in Compacted Bentonite

*Yuko Sudo1, Takamitsu Ishidera2, Ryuta Matsubara1, Fuga Ueno1, Ayano Eguchi2 (1. NUMO, 2. JAEA)
Comment()
5:45 PM - 6:00 PM JST(8:45 AM - 9:00 AM UTC)

Time reserved for Chair

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