Flexural Behavior of Repaired Reinforced Concrete Beams Due to Corrosion of Steel Reinforcement Using Grouting and FRP Sheet Strengthening

Rudy Djamaluddin, Rita Irmawaty, . Fakhruddin, Kohei Yamaguchi


One of the common causes of damage to the concrete structures close to the sea line is corrosion on the steel reinforcement in the concrete, which may cause spalling on the concrete cover. This paper presents the results of the simulation of the corroded reinforced concrete beams, which were repaired using the grouting method and FRP strengthening. The concrete cover of the beam specimens on the tensile side was filled with grouted concrete instead of filled with normal concrete to simulate the repair of concrete spalling. Three types of beam specimens were prepared and tested under a monotonic loading. BG and BPF were the specimens for beams with grouting only and beams with grouting and flexural strengthening using FRP sheets, respectively. Flexural strengthening using FRP sheets was carried out to restore the flexural capacity. As a comparison, control beams were also prepared in the form of normal reinforced concrete (BN). The results showed that the BG beam had a capacity of only about 50% compared to the control beam (BN). However, applying flexural strengthening using FRP sheet as on the type BGF beams showed that it had approximately the same capacity as BN specimens. This indicated that the repair method using grouting on damaged concrete covers and strengthening using FRP sheets was an effective alternative to repairing the corroded reinforced concrete beams.


Doi: 10.28991/CEJ-2024-010-01-014

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Steel Reinforced Concrete; Repairing; Corrosion; Grouting; FRP.


Mocová, K. A., Sackey, L. N. A., & Renkerová, P. (2019). Environmental Impact of Concrete and Concrete-Based Construction Waste Leachates. IOP Conference Series: Earth and Environmental Science, 290, 012023. doi:10.1088/1755-1315/290/1/012023.

Huo, W., Zhu, Z., Chen, W., Zhang, J., Kang, Z., Pu, S., & Wan, Y. (2021). Effect of synthesis parameters on the development of unconfined compressive strength of recycled waste concrete powder-based geopolymers. Construction and Building Materials, 292. doi:10.1016/j.conbuildmat.2021.123264.

Akhtar, A., & Sarmah, A. K. (2018). Construction and demolition waste generation and properties of recycled aggregate concrete: A global perspective. Journal of Cleaner Production, 186, 262–281. doi:10.1016/j.jclepro.2018.03.085.

Fitriani, H., & Ajayi, S. (2023). Barriers to sustainable practices in the Indonesian construction industry. Journal of Environmental Planning and Management, 66(10), 2028–2050. doi:10.1080/09640568.2022.2057281.

Goyal, A., Pouya, H. S., Ganjian, E., & Claisse, P. (2018). A Review of Corrosion and Protection of Steel in Concrete. Arabian Journal for Science and Engineering, 43(10), 5035–5055. doi:10.1007/s13369-018-3303-2.

Sun, H., Zou, H., Li, X., Memon, S. A., Yuan, B., Xing, F., Zhang, X., & Ren, J. (2022). Combined Effects of Sulfate and Chloride Attack on Steel Reinforced Mortar under Drying–Immersion Cycles. Buildings, 12(8), 1252. doi:10.3390/buildings12081252.

Zhang, X., Zhang, Y., Liu, B., Liu, B., Wu, W., & Yang, C. (2021). Corrosion-induced spalling of concrete cover and its effects on shear strength of RC beams. Engineering Failure Analysis, 127. doi:10.1016/j.engfailanal.2021.105538.

Alwash, N. A., Kadhum, M. M., & Mahdi, A. M. (2019). Rehabilitation of corrosion-defected RC beam-column members using patch repair technique. Buildings, 9(5), 120. doi:10.3390/buildings9050120.

Gergess, A. N., Shaikh Al Shabab, M., & Massouh, R. (2020). Repair of Severely Damaged Reinforced Concrete Beams with High-Strength Cementitious Grout. Transportation Research Record, 2674(6), 372–384. doi:10.1177/0361198120919116.

Jung, J. S., Lee, B. Y., & Lee, K. S. (2019). Experimental Study on the Structural Performance Degradation of Corrosion-Damaged Reinforced Concrete Beams. Advances in Civil Engineering, 2019, 9562574. doi:10.1155/2019/9562574.

Bin Jumaat, M. Z., Kabir, M., & Obaydullah, M. (2010). Structural performance of reinforced concrete beams repairing from spalling. European Journal of Scientific Research, 45(1), 89-102.

Iskhakov, I., Ribakov, Y., Holschemacher, K., & Mueller, T. (2013). High performance repairing of reinforced concrete structures. Materials & Design, 44, 216-222. doi:10.1016/j.matdes.2012.07.041.

Canaval, J. H., Silva, T. J. Da, & Santos, A. C. (2018). Experimental study of RC beams strengthened for bending by reinforced grout layer and connectors. Revista IBRACON de Estruturas e Materiais, 11(4), 810–833. doi:10.1590/s1983-41952018000400009.

Peng, G., Niu, D., Hu, X., Zhong, S., & Huang, D. (2022). Experimental and theoretical study on the flexural behavior of RC beams strengthened with cementitious grout. Engineering Structures, 267, 114713. doi:10.1016/j.engstruct.2022.114713.

Dangwal, S., & Singh, H. (2023). Seismic performance of corroded non-seismically and seismically detailed RC beam-column joints rehabilitated with High Strength Fiber Reinforced Concrete. Engineering Structures, 291, 116481. doi:10.1016/j.engstruct.2023.116481.

Azam, R. (2016). Behaviour of Shear-Critical Reinforced Concrete Beams Strengthened with Fiber Reinforced Cementitious Mortar. PhD Thesis, University of Waterloo, Waterloo, Canada.

Xie, F., Tian, W., Diez, P., Zlotnik, S., & Gonzalez, A. G. (2023). Bonding Performance of Glass Fiber-Reinforced Polymer Bars under the Influence of Deformation Characteristics. Polymers, 15(12), 2604. doi:10.3390/polym15122604.

Yang, J., Haghani, R., Blanksvärd, T., & Lundgren, K. (2021). Experimental study of FRP-strengthened concrete beams with corroded reinforcement. Construction and Building Materials, 301. doi:10.1016/j.conbuildmat.2021.124076.

Masoud, S., & Soudki, K. (2006). Evaluation of corrosion activity in FRP repaired RC beams. Cement and Concrete Composites, 28(10), 969–977. doi:10.1016/j.cemconcomp.2006.07.013.

Al-Mashgari, H. A. Y., Hejazi, F., & Alkhateeb, M. Y. (2021). Retrofitting of corroded reinforced concrete beams in flexure using CFRP rods and anchor bolt. Structures, 29, 1819–1827. doi:10.1016/j.istruc.2020.12.047.

Djamaluddin, R., Irmawaty, R., & Tata, A. (2016). Flexural capacity of reinforced concrete beams strengthened using GFRP sheet after fatigue loading for sustainable construction. Key Engineering Materials, 692, 66–73. doi:10.4028/www.scientific.net/KEM.692.66.

Habeeb, M. N. (2022). Flexural behaviour of continuously supported FRP reinforced concrete beams. University of Bradford, Bradford, Iraq.

Djamaluddin, R., & Irmawaty, R. (2017). Relationship Model of the Moment Capacity of GFRP Sheet Strengthened RC Beams to the Duration of Sea Water Exposure. Procedia Engineering, 180, 1195–1202. doi:10.1016/j.proeng.2017.04.280.

Sultan, M. A., Djamaluddin, R., Tjaronge, W., & Parung, H. (2015). Flexural capacity of concrete beams strengthened using GFRP sheet after seawater immersion. Procedia Engineering, 125, 644–649. doi:10.1016/j.proeng.2015.11.092.

Ali, H., Assih, J., & Li, A. (2021). Flexural capacity of continuous reinforced concrete beams strengthened or repaired by CFRP/GFRP sheets. International Journal of Adhesion and Adhesives, 104. doi:10.1016/j.ijadhadh.2020.102759.

Kim, J., Jeong, S., Kim, H., Kim, Y., & Park, S. (2022). Bond Strength Properties of GFRP and CFRP according to Concrete Strength. Applied Sciences (Switzerland), 12(20), 10611. doi:10.3390/app122010611.

Do-Dai, T., Chu-Van, T., Tran, D. T., Nassif, A. Y., & Nguyen-Minh, L. (2022). Efficacy of CFRP/BFRP laminates in flexurally strengthening of concrete beams with corroded reinforcement. Journal of Building Engineering, 53. doi:10.1016/j.jobe.2022.104606.

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DOI: 10.28991/CEJ-2024-010-01-014


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