Abstract
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.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 7th International Conference on FRP Composites in Civil Engineering, CICE 2014 |
| Publisher | International Institute for FRP in Construction (IIFC) |
| ISBN (Electronic) | 9781771363082 |
| Publication status | Published - 2014 Jan 1 |
| Externally published | Yes |
| Event | 7th International Conference on FRP Composites in Civil Engineering, CICE 2014 - Vancouver, Canada Duration: 2014 Aug 20 → 2014 Aug 22 |
Other
| Other | 7th International Conference on FRP Composites in Civil Engineering, CICE 2014 |
|---|---|
| Country/Territory | Canada |
| City | Vancouver |
| Period | 14/8/20 → 14/8/22 |
ASJC Scopus subject areas
- Polymers and Plastics
- Civil and Structural Engineering