A Study on the Bond Performance of φ5 mm CFRP Tendons According to Surface Treatment

DOI

10.2991/icimm-15.2015.62How to use a DOI?

Keywords

Carbon Fiber Reinforced Polymer; Tendon; Aluminum-oxide Coating; Bond Strength.

Abstract

Need is for diversified material tests and member tests of CFRP tendons to develop NSM (Near Surface Mounted) strengthening using CFRP. To that goal, research should be preliminary conducted on the bond characteristics between the CFRP tendon and the filler. Accordingly, this study performed bond test on 5 mm CFRP tendons of which surface were treated by grinding or coated with sand coating, screwed-sand coating, and aluminum-oxide coating to improve the bond characteristics. The experimental results showed that the surface treatment of the tendon increases the bond strength by about 3 times on the average compared to the non-coated tendon and, that there is practically no difference in the bond strength according to the type of coating. The reason for such result could be verified through the failure mode of the specimens. That is, the bond strength between the CFRP tendon and the resin used to fix the sand coating and oxide coating appeared to be smaller than the bond strength between the surface treatment and the filler. Therefore, surface treatment shall be imperatively executed for the CFRP tendon to improve its bond performance. Further research should focus on the improvement of the bond performance between the CFRP tendon and the resin to achieve that purpose.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Moon-seoung Keum
AU  - Woo-tai Jung
AU  - Jae-yoon Kang
PY  - 2015/07
DA  - 2015/07
TI  - A Study on the Bond Performance of φ5 mm CFRP Tendons According to Surface Treatment
BT  - Proceedings of the 5th International Conference on Information Engineering for Mechanics and Materials
PB  - Atlantis Press
SP  - 328
EP  - 331
SN  - 2352-5401
UR  - https://doi.org/10.2991/icimm-15.2015.62
DO  - 10.2991/icimm-15.2015.62
ID  - Keum2015/07
ER  -