2017 Fiscal Year Final Research Report
Evaluation of Fiber Orientation and Mechanical Properties of Ultra-high Performance Fiber Reinforced Concrete
| Project/Area Number |
15K06164
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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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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 超高強度繊維補強コンクリート / 繊維の配向 / X線CT / 曲げ特性 / 引張軟化特性 / 圧縮特性 |
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| Outline of Final Research Achievements |
The relationship between fiber orientation and mechanical properties of ultra-high performance fiber reinforced concrete (UHPFRC) was quantitatively evaluated. The post-cracking behavior of the prismatic specimen was assessed with three-point bending tests, and fiber orientation was evaluated using image analysis of fiber orientation based on X-ray CT. The flexural strengths of the specimens indicated perfect linear dependence on the effective number of fibers at the ligament. The tension softening property also depended on the effective number of fibers. The specimen with fibers oriented perpendicular to compression loading axis showed the ductile compression failure behavior.
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| Free Research Field |
コンクリート工学
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