Experimental Evaluation of Bond Behavior between Corroded Reinforcing Bars and Concrete under Elevated Temperatures
Publication: Journal of Materials in Civil Engineering
Volume 35, Issue 8
Abstract
The bond performance of corroded reinforced concrete (RC) subjected to fire has a significant influence on evaluating the structural load-bearing capacity and early warning for structure collapse. However, the bond deterioration mechanism of corroded RC subjected to fire has not been sufficiently studied. Therefore, in this study, the bond behavior between corroded reinforcement and concrete at elevated temperatures was systematically investigated by testing 76 corroded specimens obtained by the accelerated corrosion method. Eccentric pull-out tests were performed immediately when the temperature at the interface of the reinforcement and concrete reached the target values. The main parameters include the degree of corrosion (i.e., 0%, 2%, 5%, 10%, and 20%), concrete cover thickness (20, 30, and ), and temperature (20°C, 100°C, 200°C, 400°C, 500°C, 600°C, and 800°C). The test results indicated that when exposed to temperatures below 400°C, the bond strength at elevated temperatures is less than that after natural cooling. The bond strength changed minimally at elevated temperatures between 200°C and 400°C, while a significant reduction was observed after natural cooling. Moreover, the bond strength increased by 8.7% at less than 3.4% corrosion degree. However, severe corrosion (with a corrosion degree exceeding 13.2%) and high temperature (exceeding 500°C) decreased the bond strength by 16.3% and 29.6%, respectively. In addition, methods for calculating the bond strength and residual bond strength based on the deterioration of concrete compressive strength at elevated temperatures are proposed.
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Data Availability Statement
The detailed data of the bond-slip curve of each specimen and the calculated value of the bond strength in Fig. 16 are available from the corresponding author upon reasonable request.
Acknowledgments
This research work was financially supported by the National Natural Science Foundation of China (Grant No. 52178487) and Natural Science Foundation of Shandong Province (ZR2021ME228).
References
Albitar, M., P. Visintin, M. S. M. Ali, O. Lavigne, and E. Gamboa. 2017. “Bond slip models for uncorroded and corroded steel reinforcement in Class-F fly ash geopolymer concrete.” J. Mater. Civ. Eng. 29 (1): 04016186. https://doi.org/10.1061/(ASCE)MT.1943-5533.0001713.
Arruda, M. R. T., J. P. Firmo, J. R. Correia, and C. Tiago. 2016. “Numerical modelling of the bond between concrete and CFRP laminates at elevated temperatures.” Eng. Struct. 110 (Mar): 233–243. https://doi.org/10.1016/j.engstruct.2015.11.036.
ASTM. 2017. Standard practice for preparing, cleaning, and evaluating corrosion test specimens. ASTM G1-03. West Conshohocken, PA: ASTM.
Avadh, K., P. Jiradilok, J. E. Bolander, and K. Nagai. 2021. “Direct observation of the local bond behavior between corroded reinforcing bars and concrete using digital image correlation.” Cem. Concr. Compos. 123 (Oct): 104180. https://doi.org/10.1016/j.cemconcomp.2021.104180.
Ba, G., X. Weng, C. Liu, and J. Miao. 2021. “Bond strength of corroded reinforcements in concrete after high-temperature exposure.” Constr. Build. Mater. 270 (Feb): 121400. https://doi.org/10.1016/j.conbuildmat.2020.121400.
Bingöl, A. F., and R. Gül. 2009. “Residual bond strength between steel bars and concrete after elevated temperatures.” Fire Saf. J. 44 (6): 854–859. https://doi.org/10.1016/j.firesaf.2009.04.001.
BSI (British Standards Institution). 2005. Design of concrete structures. General rules. Structural fire design. London: BSI.
Chinese Standard. 2012. Standard for test method of concrete structures. GB/T50152-2012. Beijing: National Standard of the People's Republic of China.
Chinese Standard. 2015. Metallic materials: Tensile testing at ambient temperature. GB/T228.2. Beijing: National Standard of the People's Republic of China.
Decheng, F., and W. Bo. 2020. “Experimental study on bond performance between GFRP bars and concrete.” E3S Web Conf. 165 (May): 04041. https://doi.org/10.1051/e3sconf/202016504041.
Ergün, A., G. Kürklü, and M. S. Başpinar. 2016. “The effects of material properties on bond strength between reinforcing bar and concrete exposed to high temperature.” Constr. Build. Mater. 112 (Jun): 691–698. https://doi.org/10.1016/j.conbuildmat.2016.02.213.
Fernandes, B., A. L. Moreno Junior, and C. N. Costa. 2020. “Residual bond behavior between NSM CFRP and concrete at elevated temperatures.” Constr. Build. Mater. 257 (Oct): 119467. https://doi.org/10.1016/j.conbuildmat.2020.119467.
Ghazaly, N., A. Rashad, M. Kohail, and O. Nawawy. 2018. “Evaluation of bond strength between steel rebars and concrete for heat-damaged and repaired beam-end specimens.” Eng. Struct. 175 (Nov): 661–668. https://doi.org/10.1016/j.engstruct.2018.08.056.
Gong, W., Q. Chen, and J. Miao. 2021. “Bond behaviors between copper slag concrete and corroded steel bar after exposure to high temperature.” J. Build. Eng. 44 (Dec): 103312. https://doi.org/10.1016/j.jobe.2021.103312.
Handoo, S. K., S. Agarwal, and S. K. Agarwal. 2002. “Physicochemical, mineralogical, and morphological characteristics of concrete exposed to elevated temperatures.” Cem. Concr. Res. 32 (7): 1009–1018. https://doi.org/10.1016/S0008-8846(01)00736-0.
Jiang, C., H. Ding, X. L. Gu, and W. P. Zhang. 2022a. “Failure mode-based calculation method for bending bearing capacities of normal cross-sections of corroded reinforced concrete beams.” Eng. Struct. 258 (May): 114113. https://doi.org/10.1016/j.engstruct.2022.114113.
Jiang, C., J. Fang, J. Y. Chen, and X. L. Gu. 2020. “Modeling the instantaneous phase composition of cement pastes under elevated temperatures.” Cem. Concr. Res. 130 (Apr): 105987. https://doi.org/10.1016/j.cemconres.2020.105987.
Jiang, C., Y. Q. Ge, H. C. Zhang, and X. L. Gu. 2022b. “Effects of thermal expansion of enclosed medium and direction of pressure bearing plane of metal tubes on pore pressure measurements in cement-based materials under elevated temperatures.” Fire Saf. J. 130 (Jun): 103599. https://doi.org/10.1016/j.firesaf.2022.103599.
Jin, L., X. Li, R. Zhang, and X. Du. 2021. “Bond-slip behavior between concrete and deformed rebar at elevated temperature: Mesoscale simulation and formulation.” Int. J. Mech. Sci. 205 (Sep): 106622. https://doi.org/10.1016/j.ijmecsci.2021.106622.
Kodur, V. K. R., and A. Agrawal. 2017. “Effect of temperature induced bond degradation on fire response of reinforced concrete beams.” Eng. Struct. 142 (Jul): 98–109. https://doi.org/10.1016/j.engstruct.2017.03.022.
Li, W., and Z. Guo. 1993. “Experimental study on strength and deformation performance of concrete at high temperature.” J. Build. Struct. 14 (May): 1–10.
Li, X., J. Zhao, and X. Zhang. 2021. “A mechanical bond model for reinforcing bar in concrete subjected to monotonic and reversed cyclic loading.” J. Build. Eng. 44 (Dec): 102912. https://doi.org/10.1016/j.jobe.2021.102912.
Lin, H., Y. Zhao, J. Ožbolt, and R. Hans-Wolf. 2017. “The bond behavior between concrete and corroded steel bar under repeated loading.” Eng. Struct. 140 (Jun): 390–405. https://doi.org/10.1016/j.engstruct.2017.02.067.
Luccioni, B. M., D. E. López, and R. F. Danesi. 2005. “Bond-slip in reinforced concrete elements.” J. Struct. Eng. 131 (11): 1690–1698. https://doi.org/10.1061/(ASCE)0733-9445(2005)131:11(1690).
Ma, Y., Z. Guo, L. Wang, and J. Zhang. 2017. “Experimental investigation of corrosion effect on bond behavior between reinforcing bar and concrete.” Constr. Build. Mater. 152 (Oct): 240–249. https://doi.org/10.1016/j.conbuildmat.2017.06.169.
Muciaccia, G., and A. N. Consiglio. 2021. “Local bond properties of reinforcement in concrete subjected to elevated temperatures: Effects of clear cover, bonded length and heating and loading procedures.” Eng. Struct. 230 (Mar): 111594. https://doi.org/10.1016/j.engstruct.2020.111594.
Nikolaou, J., and G. D. Papadimitriou. 2004. “Microstructures and mechanical properties after heating of reinforcing 500 MPa class weldable steels produced by various processes (Tempcore, microalloyed with vanadium and work-hardened).” Constr. Build. Mater. 18 (4): 243–254. https://doi.org/10.1016/j.conbuildmat.2004.01.001.
Özkal, F. M., M. Polat, M. Yağan, and M. O. Öztürk. 2018. “Mechanical properties and bond strength degradation of GFRP and steel rebars at elevated temperatures.” Constr. Build. Mater. 184 (Sep): 45–57. https://doi.org/10.1016/j.conbuildmat.2018.06.203.
Rao, D. R., K. Hariharan, and K. R. Vijayalakshmi. 1974. “Synthesis of L [U 14C] ,β diaminopropionic acid.” Indian J. Biochem. Biophys. 11 (3): 265–266.
Rosa, I. C., J. P. Firmo, J. R. Correia, and J. A. O. Barros. 2019. “Bond behaviour of sand coated GFRP bars to concrete at elevated temperature—Definition of bond vs. slip relations.” Composites, Part B 160 (Mar): 329–340. https://doi.org/10.1016/j.compositesb.2018.10.020.
Sharma, A., J. Bošnjak, and S. Bessert. 2019. “Experimental investigations on residual bond performance in concrete subjected to elevated temperature.” Eng. Struct. 187 (May): 384–395. https://doi.org/10.1016/j.engstruct.2019.02.061.
Sun, G., X. Li, and S. Xue. 2019. “Mechanical properties of stainless-steel cables at elevated temperature.” J. Mater. Civ. Eng. 31 (7): 04019106. https://doi.org/10.1061/(ASCE)MT.1943-5533.0002742.
Tariq, F., and P. Bhargava. 2020. “Bond-slip models for super ductile TMT bars with normal strength concrete exposed to elevated temperatures.” J. Build. Eng. 32 (Nov): 101585. https://doi.org/10.1016/j.jobe.2020.101585.
Tariq, F., and P. Bhargava. 2021. “Post corrosion bond-slip models for super ductile steel with concrete.” Constr. Build. Mater. 285 (May): 122836. https://doi.org/10.1016/j.conbuildmat.2021.122836.
Wang, Z. Y., Q. Zhou, and O. Yang. 2019. “Effect of corrosion rate of steel bar on bond performance between steel bar and concrete.” Mater. Rev. 33 (May): 309–316.
Xu, F., Z. Wu, J. Zheng, Y. Hu, and Q. Li. 2012. “Experimental study on the bond behavior of reinforcing bars embedded in concrete subjected to lateral pressure.” J. Mater. Civ. Eng. 24 (1): 125–133. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000365.
Yang, O., B. Zhang, G. Yan, and J. Chen. 2018. “Bond performance between slightly corroded steel bar and concrete after exposure to high temperature.” J. Struct. Eng. 144 (11): 04018209. https://doi.org/10.1061/(ASCE)ST.1943-541X.0002217.
Zhang, B., N. Bicanic, C. J. Pearce, and D. V. Phillips. 2002. “Relationship between brittleness and moisture loss of concrete exposed to high temperatures.” Cem. Concr. Res. 32 (3): 363–371. https://doi.org/10.1016/S0008-8846(01)00684-6.
Zhang, B., H. Zhu, J. Chen, and O. Yang. 2019. “Evaluation of bond performance of corroded steel bars in concrete after high temperature exposure.” Eng. Struct. 198 (Nov): 109479. https://doi.org/10.1016/j.engstruct.2019.109479.
Zhang, S., Y. Fan, Z. Jia, and J. Ren. 2021. “Effect of nano-kaolinite clay on rebar corrosion and bond behavior between rebar and concrete.” J. Mater. Civ. Eng. 33 (1): 04020416. https://doi.org/10.1061/(asce)mt.1943-5533.0003529.
Zhang, X., Z. Wu, J. Zheng, Y. Hu, and Q. Li. 2014. “Experimental study on bond behavior of deformed bars embedded in concrete subjected to biaxial lateral tensile compressive stresses.” J. Mater. Civ. Eng. 26 (4): 761–772. https://doi.org/10.1061/(ASCE)MT.1943-5533.0000854.
Zhang, X., Y. Zhao, Z. Zhu, S. Sha, and C. Lv. 2022. “Experimental study on the cyclic bond behavior of corroded rebar based on modified beam test.” J. Build. Eng. 47 (Apr): 103834. https://doi.org/10.1016/j.jobe.2021.103834.
Zhou, H., D. Fernando, J. L. Torero, J. P. Torres, C. Maluk, and R. Emberley. 2020. “Bond behavior of CFRP-to-steel bonded joints at mild temperatures: Experimental study.” J. Compos. Constr. 24 (6): 04020070. https://doi.org/10.1061/(ASCE)CC.1943-5614.0001073.
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Published In
Journal of Materials in Civil Engineering
Volume 35 • Issue 8 • August 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Jul 12, 2022
Accepted: Jan 25, 2023
Published online: Jun 1, 2023
Published in print: Aug 1, 2023
Discussion open until: Nov 1, 2023
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