1997 Fiscal Year Final Research Report Summary
Developement of Intelligent Concrete with Self-Curing Potential
| Project/Area Number |
07555466
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
Building structures/materials
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| Research Institution | Tohoku University |
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Principal Investigator |
MIHASHI Hirozo Tohoku Univ., Graduate School of Eng., Professor, 大学院・工学研究科, 教授 (90091751)
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| Co-Investigator(Kenkyū-buntansha) |
NUMAO Tatuya Ibaraki Univ., School of Engineering, Associate Professor, 工学部, 助教授 (90164649)
OTSUKA Koji Tohoku Gakuin Univ., School of Engineering, Professor, 工学部, 教授 (10048803)
DEMURA Katsunori Nihon Univ., School of Engineering, Associate Professor, 工学部, 助教授 (10155484)
OHAMA Yoshihiko Nihon Univ., School of Engineering, Professor, 工学部, 教授 (40102579)
NOMURA Noriaki Tohoku Univ., Graduate School of Eng., Associate Professor, 大学院・工学研究科, 助教授 (80125632)
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| Project Period (FY) |
1995 – 1997
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| Keywords | intelligent / self-cure / water permeability / strength recovery |
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| Research Abstract |
Concept of intelligent materials was applied to concrete. Intelligent concrete has a potential to self-cure by repairing agent percolated from capsules embedded in the concrete. Once a crack occurs, the capsule works as a censor. Only for a certain crack width, the repairing agent percolates into the crack to fill up the space. To develop this technique, experimental studies were carried out. The results showed that this technique is available to still water through cracked concrete wall, and that cracked concrete can be recovered up to a certain level. Several types of capsules were experimentally investigated. Availabilty of recovery of deteriorated concrete was also tried with the similar techniques.
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