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.
|出版ステータス||Published - 2012 1 1|
|イベント||6th International Conference on FRP Composites in Civil Engineering, CICE 2012 - Rome, Italy|
継続期間: 2012 6 13 → 2012 6 15
|Other||6th International Conference on FRP Composites in Civil Engineering, CICE 2012|
|Period||12/6/13 → 12/6/15|
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