@inproceedings{6138529d9170480c95a0bbd690561af8,
title = "Comparison of bond properties of steel and sand-coated GFRP bars in fly Ash-based geopolymer concrete",
abstract = "Bond behaviour plays an important role in reinforced concrete structures design and performance. In this study, bond performance of glass fibre reinforced polymer (GFRP) reinforced Geopolymer Cement (GPC) concrete and steel reinforced GPC concrete are analysed and compared. The bond failure mode, the average bond strength and the free end bond-slip curves are used for the comparison. Furthermore, Tepfers{\textquoteright} concrete ring model is used to further analyse the splitting failure in ribbed steel and GFRP bar specimens. The results showed that failure mode of the specimen plays a significant role on the average bond stress at failure. Pull-out failure resulted in higher bond strength for ribbed steel bars whereas splitting failure caused higher bond stress for GFRP bars, showing the difference in the bond mechanism between the two bars. For the specimens with splitting failure mode, the ribbed steel bar specimens displayed a higher bond-angle than the GFRP bar specimens explaining the ribbed steel bars higher splitting tendency.",
keywords = "Bond-angles, Bond-slip curves, Geopolymer concrete, GFRP, Pullout failure, Splitting failure",
author = "Tekle, {Biruk Hailu} and Yifei Cui and Amar Khennane and Obada Kayali",
note = "Publisher Copyright: Copyright {\textcopyright} 2016 Department of Civil and Environmental Engineering & Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University.; 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016 ; Conference date: 14-12-2016 Through 16-12-2016",
year = "2016",
language = "English",
series = "Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016",
publisher = "Department of Civil and Environmental Engineering and Research Institute for Sustainable Urban Development, The Hong Kong Polytechnic University",
pages = "122--128",
editor = "J.G. Dai and J.G. Teng",
booktitle = "Proceedings of the 8th International Conference on Fibre-Reinforced Polymer (FRP) Composites in Civil Engineering, CICE 2016",
}