Structural Performance of Flexural and Shear-Deficient Pre-cracked Reinforced Concrete Beams Retrofitted with Knitted Glass Fabric-Reinforced Cementitious Matrix
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Abstract
Abstract This study investigates the retrofitting of concrete structures to restore and enhance the load capacity of deteriorated structural members using external strengthening techniques. The novelty of the study is the use of agro-industrial waste as a binder for fiber-reinforced polymer (FRP) sheets. Experimental testing and finite-element analysis (FEA) are performed to evaluate the effect of glass fabric-reinforced cementitious matrix (GFRCM) on the flexural and shear deficiencies of pre-cracked, retrofitted reinforced concrete (RC) beams. ANSYS software is used for FEA to analyze the load–deflection behaviour of the retrofitted RC beam, facilitating a comparison with experimental results. The results indicated significant enhancements in structural performance, with load-carrying capacity increases between 2% and 32%, and deflection ranging from 4% to 22%. These improvements in load-carrying capacity are attributed to the use of double layers of GFRCM, which effectively improves the load-carrying capacity and overall performance. The FEA predictions aligned well with the experimental findings, confirming that increasing the number of GFRCM layers significantly enhance the structural capacity of retrofitted RC beams.
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Research context
OpenAlex topics: Structural Behavior of Reinforced Concrete · Innovative concrete reinforcement materials · Masonry and Concrete Structural Analysis
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References (66)
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1. Al-Huri, M. A., Al-Osta, M. A., & Ahmad, S. (2022). Finite Element modelling of corrosion-damaged rc beams strengthened using the UHPC layers. Materials. https://doi.org/10.3390/ma1521760610.3390/ma15217606 ↗
2. Aljazaeri, Z. R., & Myers, J. J. (2016). Fatigue and flexural behaviour of reinforced concrete beams strengthened with a fibre reinforced cementitious matrix. Journal of Composites for Construction, 21(3), 128–134. https://doi.org/10.1061/(asce)cc.1943-5614.000072610.1061/(asce)cc.1943-5614.0000726 ↗
3. Alotaibi, S., Thermou, G., Hajirasouliha, I., & Guadagnini, M. (2024). Effect of textile density and number of layers on the flexural behaviour of RC beams strengthened with steel reinforced grout systems. Construction and Building Materials. https://doi.org/10.1016/j.conbuildmat.2024.13642410.1016/j.conbuildmat.2024.136424 ↗
4. Al-Salloum, Y. A., Elsanadedy, H. M., Alsayed, S. H., & Iqbal, R. W. (2012). Experimental and numerical study for the shear strengthening of reinforced concrete beams using textile- reinforced mortar. Journal of Composites for Construction, ASCE, 16(1), 74–90. https://doi.org/10.1061/(ASCE)CC.1943-5614.000023910.1061/(ASCE)CC.1943-5614.0000239 ↗
5. Awani, O., El-Maaddawy, T., & El Refai, A. (2016). Numerical simulation and experimental testing of concrete beams strengthened in shear with fabric-reinforced cementitious matrix. Journal of Composites for Construction, 20(6), 04016056. https://doi.org/10.1061/(asce)cc.1943-5614.000071110.1061/(asce)cc.1943-5614.0000711 ↗
6. Azam, R., Soudki, K., West, J. S., & Noël, M. (2018). Shear strengthening of RC deep beams with cement-based composites. Engineering Structures, 172(2017), 929–937. https://doi.org/10.1016/j.engstruct.2018.06.08510.1016/j.engstruct.2018.06.085 ↗
7. Barhum, R., & Mechtcherine, V. (2012). Effect of short fibers on the behavior of textile reinforced concrete under tensile loading. RILEM Bookseries, 2, 487–494. https://doi.org/10.1007/978-94-007-2436-5_5910.1007/978-94-007-2436-5_59 ↗
8. Chen, X., Yan, Z., Al-Nuaimi, N. A., & Xiong, Z. (2023). Compressive behaviour of concrete column confined with basalt textile reinforced ECC. Lecture Notes in Civil Engineering, 284(June), 389–401. https://doi.org/10.1007/978-3-031-12011-4_3010.1007/978-3-031-12011-4_30 ↗
9. ACI Committee 549.4R-13. (2013). Guide to Design and Construction of Externally Bonded Fabric-Reinforced Cementitous Matrix (FRCM) Systems for Repair and Strengthening Concrete Structures. ACI.
10. D’Ambrisi, A., & Focacci, F. (2011). Flexural strengthening of RC beams with cement-based composites. Journal of Composites for Construction, 15(5), 707–720. https://doi.org/10.1061/(asce)cc.1943-5614.000021810.1061/(asce)cc.1943-5614.0000218 ↗
11. Dong, Z., Deng, M., Zhang, Y., Zhang, C., & Ma, P. (2020). Out-of-plane strengthening of unreinforced masonry walls using textile reinforced mortar added short polyvinyl alcohol fibers. Construction and Building Materials, 260, 119910.10.1016/j.conbuildmat.2020.119910 ↗
12. Donnini, J., Corinaldesi, V., & Nanni, A. (2016a). Mechanical properties of FRCM using carbon fabrics with different coating treatments. Composite Part B, 88, 220–228. https://doi.org/10.1016/j.compositesb.2015.11.01210.1016/j.compositesb.2015.11.012 ↗
13. Donnini, J., Corinaldesi, V., & Nanni, A. (2016b). Mechanical properties of FRCM using carbon fabrics with different coating treatments. Composites Part B: Engineering, 88, 220–228. https://doi.org/10.1016/j.compositesb.2015.11.01210.1016/j.compositesb.2015.11.012 ↗
14. Donnini, J., De Caso y Basalo, F., Corinaldesi, V., Lancioni, G., & Nanni, A. (2017). Fabric-reinforced cementitious matrix behavior at high-temperature: Experimental and numerical results. Composites Part b: Engineering, 108, 108–121. https://doi.org/10.1016/j.compositesb.2016.10.00410.1016/j.compositesb.2016.10.004 ↗
15. Ebead, U., Shrestha, K. C., Afzal, M. S., El Refai, A., & Nanni, A. (2017). Effectiveness of fabric-reinforced cementitious matrix in strengthening reinforced concrete beams. Journal of Composites for Construction, 21(2), 04016084. https://doi.org/10.1061/(asce)cc.1943-5614.000074110.1061/(asce)cc.1943-5614.0000741 ↗
16. Ebead, U., & Younis, A. (2019). Pull-off characterization of FRCM/Concrete interface. Composites Part b: Engineering, 165(2019), 545–553. https://doi.org/10.1016/j.compositesb.2019.02.02510.1016/j.compositesb.2019.02.025 ↗
17. Elghazy, M., El Refai, A., Ebead, U., & Nanni, A. (2017). Effect of corrosion damage on the flexural performance of RC beams strengthened with FRCM composites. Composite Structures, 180, 994–1006. https://doi.org/10.1016/j.compstruct.2017.08.06910.1016/j.compstruct.2017.08.069 ↗
18. El-Maaddawy, T., & El Refai, A. (2016). Innovative repair of severely corroded t-beams using fabric-reinforced cementitious matrix. Journal of Composites for Construction, 20(3), 04015073. https://doi.org/10.1061/(asce)cc.1943-5614.000064110.1061/(asce)cc.1943-5614.0000641 ↗
19. Elsanadedy, H. M., Abbas, H., Almusallam, T. H., & Al-Salloum, Y. A. (2019). Organic versus inorganic matrix composites for bond-critical strengthening applications of RC structures–State-of-the-art review. Composites Part b: Engineering. https://doi.org/10.1016/j.compositesb.2019.10694710.1016/j.compositesb.2019.106947 ↗
20. Elsanadedy, H. M., Almusallam, T. H., Alsayed, S. H., & Al-Salloum, Y. A. (2013). Flexural strengthening of RC beams using textile reinforced mortar–experimental and numerical study. Composite Structures, 97, 40–55. https://doi.org/10.1016/j.compstruct.2012.09.05310.1016/j.compstruct.2012.09.053 ↗
21. El-Sherif, H. E., Wakjira, T. G., & Ebead, U. (2020). Flexural strengthening of reinforced concrete beams using hybrid near-surface embedded/externally bonded fabric-reinforced cementitious matrix. Construction and Building Materials. https://doi.org/10.1016/j.conbuildmat.2019.11774810.1016/j.conbuildmat.2019.117748 ↗
22. Giese, A. C. H., Giese, D. N., Dutra, V. F. P., & Filho, L. C. P. D. S. (2021). Flexural behavior of RC beams strengthened with textile reinforced concrete. Journal of Building Engineering. https://doi.org/10.1007/978-3-031-05509-6_1810.1007/978-3-031-05509-6_18 ↗
23. Grande, E., & Milani, G. (2018). Interface Modeling approach for the study of the bond behavior of FRCM strengthening systems. Composites Part B: Engineeringb, 141, 221–233. https://doi.org/10.1016/j.compositesb.2017.12.052.This10.1016/j.compositesb.2017.12.052.This ↗
24. Guo, L. D., Chen, M., Li, H., Ma, R., & Xiangkun Zhang, Y. (2022). Experimental study on pre-damaged RC beams shear-strengthened with textile-reinforced mortar (TRM). Engineering Solid Mechanics, 256, 0141–0296. https://doi.org/10.1016/j.engstrut.2022.11395610.1016/j.engstrut.2022.113956 ↗
25. Hao, R., Lin, W., Al-Nuaimi, N. A., Hawileh, R. A., Abdalla, J. A., & Elshafie, M. Z. E. B. (2022). Short-term and long-term behavior of RC beams strengthened by galvanized steel mesh laminate. Construction and Building Materials. https://doi.org/10.1016/j.conbuildmat.2022.12776310.1016/j.conbuildmat.2022.127763 ↗
26. Hassan, N. Z., Sherif, A. G., & Zamarawy, A. H. (2017). Finite element analysis of reinforced concrete beams with opening strengthened using FRP. Ain Shams Engineering Journal, 8(4), 531–537. https://doi.org/10.1016/j.asej.2015.10.01110.1016/j.asej.2015.10.011 ↗
27. IS: 14858:2000. (2000). Compression Testing Machine used for Testing of Concrete and Mortar-Requirements. Bureau of Indian Standards.
28. Jabr, A., El-Ragaby, A., & Ghrib, F. (2017). Effect of the fiber type and axial stiffness of FRCM on the flexural strengthening of RC beams. Fibers. https://doi.org/10.3390/fib501000210.3390/fib5010002 ↗
29. Jawdhari, A., Adheem, A. H., & Kadhim, M. M. A. (2020). Parametric 3D finite element analysis of FRCM-confined RC columns under eccentric loading. Engineering Structures, 212(2019), 110504. https://doi.org/10.1016/j.engstruct.2020.11050410.1016/j.engstruct.2020.110504 ↗
30. Kalyani, G., & Pannirselvam, N. (2023). Experimental and numerical investigations on RC beams flexurally strengthened utilizing hybrid FRP sheets. Results in Engineering. https://doi.org/10.1016/j.rineng.2023.10133710.1016/j.rineng.2023.101337 ↗
31. Katsamakas, A. A., Papanikolaou, V. K., & Thermou, G. E. (2021). A FEM-based model to study the behavior of SRG-strengthened R/C beams. Composite Structures, 266(2020), 1–12. https://doi.org/10.1016/j.compstruct.2021.11379610.1016/j.compstruct.2021.113796 ↗
32. Kirthiga, R., & Elavenil, S. (2022). A review on using inorganic binders in fiber reinforced polymer at different conditions to strengthen reinforced concrete beams. Construction and Building Materials. https://doi.org/10.1016/j.conbuildmat.2022.12905410.1016/j.conbuildmat.2022.129054 ↗
33. Kirthiga, R., & Elavenil, S. (2023). Potential utilization of sugarcane bagasse ash in cementitious composites for developing inorganic binder. Ain Shams Engineering Journal. https://doi.org/10.1016/j.asej.2023.10256010.1016/j.asej.2023.102560 ↗
34. Kirthiga, R., & Elavenil, S. (2024). Experimental and analytical study of tensile and bond performances of glass fabric reinforced cementitious matrix for retrofit applications on concrete surfaces. International Journal of Civil Engineering. https://doi.org/10.1007/s40999-024-01035-310.1007/s40999-024-01035-3 ↗
35. Koutas, L. N., Tetta, Z., Bournas, D. A., & Triantafillou, T. C. (2019). Strengthening of concrete structures with textile reinforced mortars: state-of-the-art review. Journal of Composites for Construction, 23(1), 1–20. https://doi.org/10.1061/(asce)cc.1943-5614.000088210.1061/(asce)cc.1943-5614.0000882 ↗
36. Mahmoud, A. M. (2016). Finite element modeling of steel concrete beam considering double composite action. Ain Shams Engineering Journal, 7(1), 73–88. https://doi.org/10.1016/j.asej.2015.03.01210.1016/j.asej.2015.03.012 ↗
37. Mercedes, L., Escrig, C., Bernat-Masó, E., & Gil, L. (2021). Analytical approach and numerical simulation of reinforced concrete beams strengthened with different frcm systems. Materials. https://doi.org/10.3390/ma1408185710.3390/ma14081857 ↗
38. Mohan, A., & Madhavi, T. C. (2024). Flexural behavior of warp knitted textile reinforced concrete impregnated with cementitious binder. Case Studies in Construction Materials. https://doi.org/10.1016/j.cscm.2024.e0288410.1016/j.cscm.2024.e02884 ↗
39. Nagajothi, S., Elavenil, S., Angalaeswari, S., Natrayan, L., & Paramasivam, P. (2022). Cracking behaviour of alkali-activated aluminosilicate beams reinforced with glass and basalt fibre-reinforced polymer bars under cyclic load. International Journal of Polymer Science. https://doi.org/10.1155/2022/676244910.1155/2022/6762449 ↗
40. Natraj, K., Kirthiga, R., & Elavenil, S. (2023). Structural performance of RCC building and strengthening the structural members with CFRP. Materials Today: Proceedings, 84, 24–32. https://doi.org/10.1016/j.matpr.2023.04.30410.1016/j.matpr.2023.04.304 ↗
41. Ombres, L. (2011). Flexural analysis of reinforced concrete beams strengthened with a cement based high strength composite material. Composite Structures, 94(1), 143–155. https://doi.org/10.1016/j.compstruct.2011.07.00810.1016/j.compstruct.2011.07.008 ↗
42. Ombres, L. (2015). Structural performances of reinforced concrete beams strengthened in shear with a cement based fiber composite material. Composite Structures, 122(2015), 316–329. https://doi.org/10.1016/j.compstruct.2014.11.05910.1016/j.compstruct.2014.11.059 ↗
43. Ombres, L., & Verre, S. (2019). Flexural strengthening of rc beams with steel-reinforced grout: experimental and numerical investigation. Journal of Composites for Construction, 23(5), 1–13. https://doi.org/10.1061/(asce)cc.1943-5614.000096010.1061/(asce)cc.1943-5614.0000960 ↗
44. Ombres, L., & Verre, S. (2021). Shear strengthening of reinforced concrete beams with SRG (Steel Reinforced Grout) composites: Experimental investigation and modelling. Journal of Building Engineering. https://doi.org/10.1016/j.jobe.2021.10304710.1016/j.jobe.2021.103047 ↗
45. Omran, H. Y., & El-Hacha, R. (2012). Nonlinear 3D finite element modeling of RC beams strengthened with prestressed NSM-CFRP strips. Construction and Building Materials, 31, 74–85. https://doi.org/10.1016/j.conbuildmat.2011.12.05410.1016/j.conbuildmat.2011.12.054 ↗
46. Ramezani, A., & Esfahani, M. R. (2023). Shear strengthening of RC beams using FRCM system made with industrial wastes. Structures, 48(January), 1833–1847. https://doi.org/10.1016/j.istruc.2023.01.07810.1016/j.istruc.2023.01.078 ↗
47. Raoof, S. M., Koutas, L. N., & Bournas, D. A. (2017). Textile-reinforced mortar (TRM) versus fibre-reinforced polymers (FRP) in flexural strengthening of RC beams. Construction and Building Materials, 151, 279–291. https://doi.org/10.1016/j.conbuildmat.2017.05.02310.1016/j.conbuildmat.2017.05.023 ↗
48. Revanna, N., & Moy, C. K. S. (2023). Numerical modelling of reinforced concrete flexural members strengthened using textile reinforced mortars. Frontiers of Structural and Civil Engineering, 17(4), 649–668. https://doi.org/10.1007/s11709-023-0919-410.1007/s11709-023-0919-4 ↗
49. Sagare, S. S., Kirthiga, R., & Elavenil, S. (2024). A state of art of review on strengthening of concrete structures using fabric reinforced cementitious matrix. Research on Engineering Structures and Materials, 10(3), 1–30. https://doi.org/10.17515/resm2024.133ma1226rv10.17515/resm2024.133ma1226rv ↗
50. Sasikumar, P., & Candassamy, K. (2024). Strengthening of flexural behavior of reinforced concrete beams by using hybrid fibers: Experimental and analytical study. Revista de la construccion, 23(2), 354–373. https://doi.org/10.7764/RDLC.23.2.35410.7764/RDLC.23.2.354 ↗
51. Si Larbi, A., Agbossou, A., & Hamelin, P. (2013). Experimental and numerical investigations about textile-reinforced concrete and hybrid solutions for repairing and/or strengthening reinforced concrete beams. Composite Structures, 99, 152–162. https://doi.org/10.1016/j.compstruct.2012.12.00510.1016/j.compstruct.2012.12.005 ↗
52. Sivasuriyan, A., Vijayan, D. S., Sankaran, N., & Parthiban, D. (2024). Finite element analysis of RC beams using static experimental data to predict static and dynamic behaviors. Scientific Reports, 14(1), 31238. https://doi.org/10.1038/s41598-024-82537-x10.1038/s41598-024-82537-x ↗
53. Song, S., Deng, M., Zhang, M., Guo, L., Dong, Z., & Li, P. (2023). Flexural strengthening of reinforced concrete beams using textile-reinforced mortar improved with short PVA fibers. Structures, 56(April), Article 104824. https://doi.org/10.1016/j.istruc.2023.07.01410.1016/j.istruc.2023.07.014 ↗
54. Sucharda, O. (2020). Identification of fracture mechanic properties of concrete and analysis of shear capacity of reinforced concrete beams without transverse reinforcement. Materials, 13(12), 1–22. https://doi.org/10.3390/ma1312278810.3390/ma13122788 ↗
55. Taie, B., Mandor, A., & El Refai, A. (2024). Experimental and numerical investigation of two–span RC beams strengthened with fiber–reinforced cementitious matrix (FRCM). Engineering Structures. https://doi.org/10.1016/j.engstruct.2023.11724610.1016/j.engstruct.2023.117246 ↗
56. Talaat, M., Yehia, E., Mazek, S. A., Genidi, M. M. M., & Sherif, A. G. (2022). Finite element analysis of RC buildings subjected to blast loading. Ain Shams Engineering Journal. https://doi.org/10.1016/j.asej.2021.10168910.1016/j.asej.2021.101689 ↗
57. Tetta, Z. C., Koutas, L. N., & Bournas, D. A. (2016). Shear strengthening of full-scale RC T-beams using textile-reinforced mortar and textile-based anchors. Composites Part B: Engineering, 95, 225–239. https://doi.org/10.1016/j.compositesb.2016.03.07610.1016/j.compositesb.2016.03.076 ↗
58. Truong, B. T., Si Larbi, A., & Limam, A. (2016). Numerical modelling of reinforced concrete beams repaired by TRC composites. Composite Structures, 152, 779–790. https://doi.org/10.1016/j.compstruct.2016.05.07110.1016/j.compstruct.2016.05.071 ↗
59. Tzoura, E., & Triantafillou, T. C. (2016). Shear strengthening of reinforced concrete T-beams under cyclic loading with TRM or FRP jackets. Materials and Structures/materiaux Et Constructions, 49(1–2), 17–28. https://doi.org/10.1617/s11527-014-0470-910.1617/s11527-014-0470-9 ↗
60. Wakjira, T. G., & Ebead, U. (2018). Hybrid NSE/EB technique for shear strengthening of reinforced concrete beams using FRCM: experimental study. Construction and Building Materials, 164, 164–177. https://doi.org/10.1016/j.conbuildmat.2017.12.22410.1016/j.conbuildmat.2017.12.224 ↗
61. Wei, B., Xiongjun, H., Weiwei, C. T. W., & Jia, H. (2025). Finite element analysis of ductility and flexural capacity of FRP and steel bars hybrid reinforced concrete beams. Structural Concre, 2023, 952–971. https://doi.org/10.1002/suco.20230106610.1002/suco.202301066 ↗
62. Yang, X., Gao, W. Y., Dai, J. G., & Lu, Z. D. (2020). Shear strengthening of RC beams with FRP grid-reinforced ECC matrix. Composite Structures, 241, Article 112120. https://doi.org/10.1016/j.compstruct.2020.11212010.1016/j.compstruct.2020.112120 ↗
63. Yin, S.-P., Sheng, J., Wang, X.-X., & Li, S.-G. (2016). Experimental Investigations of the Bending Fatigue Performance of TRC-Strengthened RC Beams in Conventional and Aggressive Chlorate Environments. Journal of Composites for Construction, 20(2), 04015051. https://doi.org/10.1061/(asce)cc.1943-5614.000061710.1061/(asce)cc.1943-5614.0000617 ↗
64. Zeng, L., Li, L. J., & Liu, F. (2017). Experimental study on fibre-reinforced cementitious matrix confined concrete columns under axial compression. Kemija u Industriji/journal of Chemists and Chemical Engineers, 66(3–4), 165–172. https://doi.org/10.15255/KUI.2016.03910.15255/KUI.2016.039 ↗
65. Zhang, M., & Deng, M. (2022). Fabric-to-cementitious matrix bond behavior in carbon fabric reinforced cementitious matrix (FRCM) composites with added short fibers. Composite Structures. https://doi.org/10.1016/j.compstruct.2022.11617310.1016/j.compstruct.2022.116173 ↗
66. Zreid, I., & Kaliske, M. (2018). A gradient enhanced plasticity–damage microplane model for concrete. Computational Mechanics, 62(5), 1239–1257. https://doi.org/10.1007/s00466-018-1561-110.1007/s00466-018-1561-1 ↗