Migration behavior of materials in clay buffer materials in geological disposal of high-level radioactive waste and migration-controlled corrosion of iron
| Project/Area Number |
23360417
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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, 工学(系)研究科(研究院), 教授 (60234746)
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| Co-Investigator(Kenkyū-buntansha) |
WATANABE Naoko 北海道大学, 大学院・工学研究院, 准教授 (20624711)
富岡 智 北海道大学, 工学(系)研究科(研究院), 准教授 (40237110)
香西 直文 独立行政法人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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| Co-Investigator(Renkei-kenkyūsha) |
TOMIOKA Satoshi 北海道大学, 大学院・工学研究院, 准教授 (40237110)
KOZAI Naofumi 独立行政法人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) |
2011-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2013: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2012: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2011: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
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| Keywords | 放射性廃棄物処分 / ベントナイト / オーバーパック / 腐食 / 物質移行 / 透水係数 / 拡散係数 / 放射性廃棄物 |
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| Research Abstract |
For the safety assessment of the geological disposal, it is necessary to understand the corrosion behavior of iron in bentonite buffer material and identify important parameters to affect the corrosion. In this study, corrosion of iron and migration of ions in compacted bentonite under electrical gradient were studied. In addition, hydraulic property of sedimentary rock sample was studied by conducting hydraulic conductivity measurement and X-ray micro CT observation of the rock sample. Hydraulic conductivity measurements were also made for Fe(II)-montmorillonite to understand the effect of the alteration of bentonite on the performance as the buffer material.
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Report
(4 results)
Research Products
(12 results)
