| Project/Area Number |
23686063
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Civil engineering materials/Construction/Construction management
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| Research Institution | Saitama University |
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Principal Investigator |
ASAMOTO Shingo 埼玉大学, 大学院・理工学研究科, 助教 (50436333)
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| Co-Investigator(Renkei-kenkyūsha) |
KURASHIGE Isao 電力中央研究所, 地球工学研究所, 主任研 究員 (20371461)
OKAZAKI Shinichiro 愛媛大学, 大学院・理工学研究科, 助教 (30510507)
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| Research Collaborator |
BRUNO Capra フランスOxand社, Consultant Expert
OLIVIER POUPARD フランスOxand社, Consulting Branch Manager
YVI LE GUEN フランスOxand社, Consultant Engineer
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥28,080,000 (Direct Cost: ¥21,600,000、Indirect Cost: ¥6,480,000)
Fiscal Year 2012: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2011: ¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
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| Keywords | 大深度地下 / 放射性廃棄物 / 二酸化炭素地下貯留 / セメントバリア / リスクマネージメント / 放射性廃棄物地層処分 / セメント系材料 / 長期安定性 |
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| Research Abstract |
In this study, the risk of CO_2 leakage through the well for Carbon Captured and Storage and the long-term performance of artificial cement barrier in the facility of nuclear waste disposal are numerically and experimentally analyzed. The leakage risk is examined focusing on the cracking of cement paste in the well due to CO_2 injection pressure and the chemical deterioration of the cement paste exposed to high temperature, high pressure and high concentration of CO_2 at deep underground. The calcium leaching to increase the risk of radioactive nuclide leakage is investigated using previous numerical models to deliberate dominant parameters for the leaching.
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