Bonding and flexural behaviors of rc members with CFRP strand sheets - Polyurea soft layer system

Masaki Arazoe, Akira Kobayashi, Yoshihiro Takahashi, Yasuhiko Sato

研究成果: Conference contribution

抄録

A strengthened method using CFRP strand sheets, which consist of bunch of hardened continuous fiber strands, and polyurea resin (shortly polyurea) with low elastic modulus have been newly developed by authors. In the method, layer of polyurea is inserted between concrete surface and FRP with the aim of improving bonding ability of the strand sheet. In this study, two kinds of test, bonding test and flexural test, were performed to clarify those effects of the polyurea soft layer on bonding ability of the strand sheet. To clarify the influence affected by temperature, bonding tests were carried out at two different temperatures, -20°C and 23°C. It was proved that inserting a polyurea soft layer was effective for improving bonding ability between the strand sheet and concrete surface at low temperatures and room temperatures, and flexural capacity of concrete beams strengthened with the strand sheet.

本文言語English
ホスト出版物のタイトルProceedings of the 7th International Conference on FRP Composites in Civil Engineering, CICE 2014
出版社International Institute for FRP in Construction (IIFC)
ISBN(電子版)9781771363082
出版ステータスPublished - 2014 1 1
外部発表はい
イベント7th International Conference on FRP Composites in Civil Engineering, CICE 2014 - Vancouver, Canada
継続期間: 2014 8 202014 8 22

Other

Other7th International Conference on FRP Composites in Civil Engineering, CICE 2014
国/地域Canada
CityVancouver
Period14/8/2014/8/22

ASJC Scopus subject areas

  • ポリマーおよびプラスチック
  • 土木構造工学

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