2014 Fiscal Year Final Research Report
Development of local-failure type and high-deformable type structural members made of HPFRCC
| Project/Area Number |
24360170
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial 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) |
2012-04-01 – 2015-03-31
|
| Keywords | コンクリート / 繊維補強 / 高靱性 / 破壊 / 衝撃吸収 |
|---|
| Outline of Final Research Achievements |
New attractive applications of HPFRCCs (High Performance Fiber Reinforced Cementitious Composites) were investigated.
Lightweight HPFRCCs containing EPS (Eexpanded Polystyrene) particles were proposed. Unique specimen-drop tests were performed on six-legged specimens made of lightweight HPFRCCs etc. assuming concrete blocks that are drop-deposited to form an erosion control structure in the mountains. The steel-bar reinforcement and the reduction of mass of specimens were beneficial for enhancing the impact resistance performance of falling specimens.
Long-term ASR(AlkaliSsilica Reaction)-expansive HPFRCCs were developed. Chemical prestress was introduced into this material by restraining the ASR expansion using reinforcing bars. Reinforced ASR-expansive HPFRCC beams showed higher cracking strength due to the chemical prestress.
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| Free Research Field |
コンクリート工学
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