Study of Post-Spalling Reinforced Concrete Beam Repair Using Grouting and GFRP Reinforcement

Achmad Z. Mansur, Rudy Djamaluddin, Herman Parung, Rita Irmawaty


Reinforced concrete beams must meet strength and durability standards, but aggressive environmental factors are the main cause of corrosion, which can affect the strength and durability of building structures. Maintenance, retrofitting, and reinforcement of structures are important to ensure safety. It is necessary to take appropriate measures to address corrosion problems in building structures early on. One way to achieve this is by repairing damaged structures using more modern and effective technologies and materials. This study aims to determine the flexural behavior of reinforced concrete (RC) beams repaired with Sikagrout-215 material and reinforced with GFRP sheets with different layer configurations. The study used three RC beams as the control group, three RC beams coated with Sikagrout-215 mortar, and six RC beams reinforced with GFRP. All beams were subjected to 4-point bending tests to determine their load capacity, crack response, ductility, and energy absorption capacity. The results showed that repair with grouting decreased the load capacity, while reinforcement with a combination of mortar grouting and GFRP increased the maximum load. Reinforcement of the support region could restore the function of the beam by 9.3%. Among the three types of reinforcement, BGRST significantly improved the first crack response, yield response, and ultimate performance of the RC beams. Beam fracture occurred more frequently with Sikagrout-215 mortar reinforcement, while reinforcement with GFRP composites partially protected the load capacity after fracture.


Doi: 10.28991/CEJ-2024-010-01-08

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Reinforced Concrete; Spalling; Grouting; GFRP.


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.

Ganesh, P., & Murthy, A. R. (2019). Repair, retrofitting and rehabilitation techniques for strengthening of reinforced concrete beams - A review. Advances in Concrete Construction, 8(2), 101–117. doi:10.12989/ACC.2019.8.2.101.

Ferrari, V. J., De Hanai, J. B., & De Souza, R. A. (2013). Flexural strengthening of reinforcement concrete beams using high performance fiber reinforcement cement-based composite (HPFRCC) and carbon fiber reinforced polymers (CFRP). Construction and Building Materials, 48, 485–498. doi:10.1016/j.conbuildmat.2013.07.026.

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.

Chalioris, C. E., Kytinou, V. K., Voutetaki, M. E., & Papadopoulos, N. A. (2019). Repair of heavily damaged RC beams failing in shear using U-shaped mortar jackets. Buildings, 9(6), 146. doi:10.3390/BUILDINGS9060146.

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.

Machmud, H., Tjaronge, M. W., Djamaluddin, R., & Irmawaty, D. R. (2019). The Capacity of Reinforced Concrete Beams Post Rebars Yielded with FRP Sheet Strengthening. International Journal of Civil Engineering and Technology, 10(9), 232-241.

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, Trans Tech Publications Ltd., 692, 66–73. doi:10.4028/

Saribiyik, A., & Caglar, N. (2016). Flexural strengthening of RC beams with low-strength concrete using GFRP and CFRP. Structural Engineering and Mechanics, 58(5), 825–845. doi:10.12989/sem.2016.58.5.825.

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.

Ortega, I., Pellicer, T. M., Calderón, P. A., & Adam, J. M. (2018). Cement-based mortar patch repair of RC columns. Comparison with all-four-sides and one-side repair. Construction and Building Materials, 186, 338–350. doi:10.1016/j.conbuildmat.2018.07.148.

Pineda, P., García-Martínez, A., & Castizo-Morales, D. (2017). Environmental and structural analysis of cement-based vs. natural material-based grouting mortars. Results from the assessment of strengthening works. Construction and Building Materials, 138, 528–547. doi:10.1016/j.conbuildmat.2017.02.013.

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.

Yousefi Moghadam, S., Ranjbar, M. M., Madandoust, R., & Kazemi, M. (2017). Analytical study on the behavior of corrosion-damaged reinforced concrete beams strengthen with FRP. Revista Romana de Materiale, 47(4), 514-521.

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. (2017). Effect of Sea Water Soaking on the Adhesion Capacity of GFRP-Sheet in Reinforced Concrete Beams. Jurnal Teknik Sipil, 24(1), 35–42. doi:10.5614/jts.2017.24.1.5.

Almusallam, T. H. (2006). Load-deflection behavior of RC beams strengthened with GFRP sheets subjected to different environmental conditions. Cement and Concrete Composites, 28(10), 879–889. doi:10.1016/j.cemconcomp.2006.07.017.

Idris, M., Parung, H., & Djamaluddin, R. (2019). Flexural Behavior of Shear-Cracked Reinforced Concrete Beam Strengthened with GFRP Sheet. International Journal of Civil Engineering and Technology, 10(10), 64-72.

Attari, N., Amziane, S., & Chemrouk, M. (2012). Flexural strengthening of concrete beams using CFRP, GFRP and hybrid FRP sheets. Construction and Building Materials, 37, 746–757. doi:10.1016/j.conbuildmat.2012.07.052.

Guades, E. J., Stang, H., Schmidt, J. W., & Fischer, G. (2021). Flexural behavior of hybrid fiber-reinforced geopolymer composites (FRGC)-jacketed RC beams. Engineering Structures, 235. doi:10.1016/j.engstruct.2021.112053.

Solahuddin, B. A., & Yahaya, F. M. (2023). A state-of-the-art review on experimental investigation and finite element analysis on structural behavior of fiber reinforced polymer reinforced concrete beams. Heliyon, 9(3), 14225. doi:10.1016/j.heliyon.2023.e14225.

Faroz, S. A., Ghosh, S., & Pushkaran, T. (2023). Optimum calibration of a corrosion rate instrument using information gain criterion within a Bayesian framework. Structural Safety, 104. doi:10.1016/j.strusafe.2023.102354.

Özakça, M., Hind, M. K., & Ekmekyapar, T. (2016). A Review on Nonlinear Finite Element Analysis of Reinforced Concrete Beams Retrofitted with Fiber Reinforced Polymers. Journal of Advanced Research in Applied Mechanics, 22(1), 13-48.

Makhlouf, M. H., & Mansour, M. H. (2023). Efficiency of innovative strengthening techniques and anchorage systems using different materials on flexure performance of R.C beams. Case Studies in Construction Materials, 18. doi:10.1016/j.cscm.2022.e01733.

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, 105538. doi:10.1016/j.engfailanal.2021.105538.

Naser, M. Z., Hawileh, R. A., & Abdalla, J. A. (2019). Fiber-reinforced polymer composites in strengthening reinforced concrete structures: A critical review. Engineering Structures, 198, 109542. doi:10.1016/j.engstruct.2019.109542.

Napoli, A., Bank, L. C., Brown, V. L., Martinelli, E., Matta, F., & Realfonzo, R. (2013). Analysis and design of RC structures strengthened with mechanically fastened FRP laminates: A review. Composites Part B: Engineering, 55, 386–399. doi:10.1016/j.compositesb.2013.06.038.

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DOI: 10.28991/CEJ-2024-010-01-08


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