Bonding characteristics and strengthening effect of strand sheet with soft layer

Masaki Arazoe, Yasuhiko Sato, Yoshihiro Takahashi, Akira Kobayashi

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

We have developed advanced CFRP strand sheets which consist of bunch of hardened continuous fiber strands. It is assumed that the bonding ability of the strand sheet can be improved by putting a soft layer in between the strand sheet and concrete surface. In this study, the polyurethane resin was used to form a soft layer. In order to clarify the effectiveness of the polyurethane soft layer on the bonding ability of the strand sheet, bonding tests and beam bending tests in which the strand sheet was attached on concrete surface using epoxy resin with or without the polyurethane soft layer were carried out. As a result, it was found out that the polyurethane soft layer was effective for improving bonding ability between the strand sheet and concrete surface and flexural capacity of concrete beams strengthened with the strand sheet.

Original languageEnglish
Publication statusPublished - 2012 Jan 1
Event6th International Conference on FRP Composites in Civil Engineering, CICE 2012 - Rome, Italy
Duration: 2012 Jun 132012 Jun 15

Other

Other6th International Conference on FRP Composites in Civil Engineering, CICE 2012
CountryItaly
CityRome
Period12/6/1312/6/15

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Keywords

  • Beam bending test
  • Bonding ability
  • Bonding test
  • Flexural capacity
  • Polyurethane
  • Soft layer
  • Strand sheet

ASJC Scopus subject areas

  • Polymers and Plastics
  • Civil and Structural Engineering

Cite this

Arazoe, M., Sato, Y., Takahashi, Y., & Kobayashi, A. (2012). Bonding characteristics and strengthening effect of strand sheet with soft layer. Paper presented at 6th International Conference on FRP Composites in Civil Engineering, CICE 2012, Rome, Italy.