2011 Fiscal Year Final Research Report
Development of recycled micro PET fiber
| Project/Area Number |
21360444
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Earth system and resources enginnering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
FUKUI Katsunori 東京大学, 大学院・工学系研究科, 准教授 (70251361)
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| Co-Investigator(Kenkyū-buntansha) |
OKUBO Seisuke 東京大学, 大学院・工学系研究科, 教授 (90092155)
HASHIBA Kimihiro 東京大学, 大学院・工学系研究科, 助教 (60456142)
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| Project Period (FY) |
2009 – 2011
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| Keywords | モルタル / 繊維補強 / 付着 / 力学特性 / ブリーディング |
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| Research Abstract |
Fiber reinforced concrete is used for supporting of slope and tunnel when condition is severe. Fibers in concrete are considered to improve crack resistance and toughness. Micronization of fiber increases in total surface area of fiber per unit volume also can be expected and improves tensile strength of fibers due to size effect. As a result, reinforcement by fibers is increased. In this study, we examined micro PET fibers made from waste PET bottles. Through many experiments, ome properties of micro PET fiber reinforced concrete were found out. It is found that micronization of PET fiber is more effective on reinforcing concrete.
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