Performances of barrier materials in geological disposal : mechanistic evaluation through mesoscopic analysis
| Project/Area Number |
20360415
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear engineering
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| Research Institution | Hokkaido University |
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Principal Investigator |
KOZAKI Tamotsu 北海道大学, 大学院・工学研究院, 准教授 (60234746)
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| Co-Investigator(Kenkyū-buntansha) |
TOMIOKA Satoshi 北海道大学, 大学院・工学研究院, 准教授 (40237110)
NISIYAMA Shusuke 北海道大学, 大学院・工学研究院, 助教 (30333628)
KAMIYAMA Takashi 北海道大学, 大学院・工学研究院, 准教授 (50233961)
SASAKI Takayuki 京都大学, 大学院・工学研究科, 准教授 (60314291)
KOZAI Naofumi 日本原子力研究開発機構, 先端基礎研究センター, 研究主幹 (80354877)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2010: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2009: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2008: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
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| Keywords | 放射性廃棄物 / 地層処分 / メゾスコピック構造 / 収着 / 拡散 |
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| Research Abstract |
As a fundamental study for the safety assessment of the geological disposal of high-level radioactive waste, the mesoscopic structures of the expected barrier materials (bentonite and sedimentary rock) were characterized by X-ray diffraction analysis, X-ray micro CT observation and μ-PIXE analysis. The hydraulic conductivity, diffusivity, and distribution coefficient of radioactive tracers were determined as indicators in order to relate the barrier performance to the mesoscopic structures.
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Report
(4 results)
Research Products
(63 results)
