Technology development for treatment/disposal of hazardous materials in concrete, soil and water(Fostering Joint International Research)

• Project/Area Number: 15KK0239
• Research Category: Fund for the Promotion of Joint International Research (Fostering Joint International Research)
• Allocation Type: Multi-year Fund
• Research Field: Civil engineering materials/Construction/Construction management
• Research Institution: Hiroshima University
• Principal Investigator: Nakarai Kenichiro 広島大学, 工学研究科, 准教授 (10359656)
• Research Collaborator: Kosakowski Georg ポールシェラー研究所(PSI), 廃棄物研究室(LES), Senior Scientist ; Churakov Sergey PSI, LES, 研究室長, 教授 ; Van Loon Luc PSI, LES, グループ長 ; Gimmi Thomas PSI, LES, Scientist ; Prasianakis Nikolaos PSI, LES, グループ長 ; Hax Damiani Leonardo PSI, LES, PhD Student ; Kulik Dmitrii PSI, LES, Scientist ; Luraschi Pietro PSI, LES, PhD Student ; Duc Myriam IFSTTAR, GERS・SRO, Researcher ; Koubyc Alain Le IFSTTAR, GERS・SRO, Researcher ; Maachi Abdelhak IFSTTAR, GERS・SRO, PhD Student
• Project Period (FY): 2016 – 2017
• Project Status: Completed (Fiscal Year 2017)
• Budget Amount: ¥12,220,000 (Direct Cost: ¥9,400,000、Indirect Cost: ¥2,820,000)
• Keywords: コンクリート / ベントナイト / 放射性廃棄物 / 拡散試験 / 中性子ラジオグラフィ / セメント / 人工バリア / 長期耐久性 / 化学反応 / カルサイト / 地盤 / 水環境 / 拡散 / 数値解析 / 放射性廃棄物処分

Outline of Final Research Achievements

Cement-clay interaction in engineered barrier of nuclear waste repositories was experimentally and numerically investigated at Laboratory for Waste Management (LES) of Paul Sherrer Institute (PSI) in Switzerland. It was found that calcite precipitation at the cement-clay interface significantly reduced mass transport through the interface.

Research Products

• [Int'l Joint Research] ポールシェラー研究所(スイス) (2016)