2010 Fiscal Year Final Research Report
Maintenance planning based on risk evaluation of deterioration of cracked concrete structure
| Project/Area Number |
20560429
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Civil engineering materials/Construction/Construction management
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| Research Institution | The University of Tokyo |
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Principal Investigator |
NISHIMURA Tsugio The University of Tokyo, 生産技術研究所, 技術専門員 (10466849)
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| Co-Investigator(Kenkyū-buntansha) |
KATO Yoshitaka 東京大学, 生産技術研究所, 准教授 (80272516)
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| Project Period (FY) |
2008 – 2010
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| Keywords | コンクリート / ひび割れ / 中性化 / 水分移動 |
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| Research Abstract |
In this research the influence of the crack on the rate of carbonation had been experimentally examined. As a result, it could be concluded that the existence of the crack does not accelerate the rate of carbonation at all when the crack depth does not reach the reinforcement bar. This reason is as follows. The water is supplied in the crack by rainfall. The remaining moisture disturbs the diffusion of the carbon dioxide.
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