2015 Fiscal Year Final Research Report
Fiber reinforced mortar with high durability and high ductility for shotcreting
| Project/Area Number |
25420458
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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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 | Gifu University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
ROKUGO Keitetsu 岐阜大学, 工学部, 教授 (40127155)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | 繊維補強コンクリート / 耐久性 / 鉄筋腐食 / ひび割れ / 吹付け施工 |
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| Outline of Final Research Achievements |
SHCC test specimens having different mixes such as fiber percentage, W/C, etc., were produced with the objective of achieving both high toughness and high flowability, so chloride penetration into the SHCC through cracks and the reinforcement corrosion prevention performance were investigated. It was found that even though the cracks were very narrow, chloride ions penetrated into the SHCC through the cracks. In the case of SHCC whose cracks have narrow range of widths, the results showed a high correlation between the total crack width and the quantity of chloride ion. It was also found that the corrosion rate of the rebar is high in SHCC with a high water cement ratio.
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| Free Research Field |
コンクリート工学
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