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Strengthening of Reinforced Concrete (RC) Beams using Textile Reinforced Mortars (TRMs)

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Abstract

This study presents the experimental results of fifteen reinforced concrete beams (150 × 100 × 2700 mm): one control beam (without strengthening); one beam strengthened with one layer of textile bonded with epoxy to the tension side of the beam; and the remaining beams were strengthened with one layer, two layers, and three layers of textile bonded with different types of mortar. Two commercially available repair mortars were investigated in addition to one mortar that was prepared in the lab. Most previous studies used special mortar mix, while this study investigated the effectiveness of commercially available mortars without any modifications. Additional U-shaped strips were used on some of the beams as anchorage to strengthen the bond of the textile layers to the concrete surface using two different schemes of the U-shaped textile. Previous research studies concentrated on the end of the beam anchorage, while this study investigated two schemes: one concerning the beam ends and the other focusing on distributing the anchorage over the beam span. The test results indicated that epoxy-bonded textile performed better in terms of strength enhancement with an increase of 33% in the ultimate load compared to the control beam, as the bond was perfect compared to mortar-bonded textile, which resulted in an increase ranging between 15 and 27% depending on the mortar type. However, the ductility or deformability was slightly better with an increase of approximately 25% in the maximum deflections of the beams strengthened with mortar-bonded textiles. The test results also showed that as the number of layers increases, there was no significant increase in strength due to bond failure. When the U- shaped strips were used along with the increasing number of textile fiber layers, gains in flexure strength and ductility were observed. The use of U-shaped strips distributed along the beam was more efficient than only anchoring the ends of the beam. From the results obtained in this study, it is believed that textile-reinforced mortars (TRMs) are a potential solution for the structural upgrading of concrete structures provided that the bond between the textile layer and the concrete surface is maintained.

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References

  1. Kikukawa K, Mutoh K, Ohya H, Ohyama Y, Tanaka H, Watanabe K (1988) Flexural reinforcement of concrete floor slabs by carbon fiber textiles. Compos Interfaces 5:469–478. https://doi.org/10.1163/156855498x00270

    Article  Google Scholar 

  2. Bruckner A, Otrlepp R, Curbach M (2006) Textile reinforced concrete for strengthening in bending and shear. Mater Struct 39:741–748. https://doi.org/10.1617/14283

    Article  Google Scholar 

  3. Triantafillou TC, Papanicolaou C (2006) Shear strengthening of reinforced concrete members with textile reinforced mortar (TRM) jackets. Mater Struct 39:93–103. https://doi.org/10.1617/14308

    Article  Google Scholar 

  4. Buyle-BF DE (2004) Use of carbon fiber textile to control premature failure of reinforced concrete beams strengthened with bonded CFRP plates. J Ind Text 33:145–157. https://doi.org/10.1177/1528083704039251

    Article  Google Scholar 

  5. Al-Salloum YA, Siddiqui NA, Elsanadedy HM, Abadel AA, Aqel MA (2011) Textile-reinforced mortar versus FRP as strengthening material for seismically deficient RC beam-column joints. J Compos Constr 15:920–933. https://doi.org/10.1061/(asce)cc.1943-5614.0000222

    Article  Google Scholar 

  6. Elsanadedy HM, Almusallam TH, Alsayed SH, Al-Salloum YA (2013) Flexural strengthening of RC beams using textile reinforced mortar – Experimental and numerical study. Compos Struct 97:40–55. https://doi.org/10.1016/j.compstruct.2012.09.053

    Article  Google Scholar 

  7. Hashemi S, Al-Mahaidi R (2012) Flexural performance of CFRP textile-retrofitted RC beams using cement-based adhesives at high temperature. Constr Build Mater 28:791–879. https://doi.org/10.1016/j.conbuildmat.2011.09.015

    Article  Google Scholar 

  8. Amir SL, Amen A, Patrice H (2013) Experimental and numerical investigations about textile-reinforced concrete and hybrid solutions for repairing and/or strengthening reinforced concrete beams. Compos Struct 99:152–162. https://doi.org/10.1016/j.compstruct.2012.12.005

    Article  Google Scholar 

  9. Hashemi S, Al-Mahaidi R (2012) Experimental and finite element analysis of flexural behavior of FRP-strengthened RC beams using cement-based adhesives. Constr Build Mater 26:268–273. https://doi.org/10.1016/j.conbuildmat.2011.06.021

    Article  Google Scholar 

  10. Ernest BM, Christian E, Chrysl AA, Lluís G (2014) Experimental assessment of Textile Reinforced Sprayed Mortar strengthening system for brickwork wallettes. Constr Build Mater 50:226–236. https://doi.org/10.1016/j.conbuildmat.2013.09.031

    Article  Google Scholar 

  11. Al-Salloum YA, Elsanadedy HM, AlSayed SH, Iqbal RA (2012) Experimental and numerical study for the shear strengthening of reinforced concrete beams using textile-reinforced mortar. J Compos Constr 16(1):74–90

    Article  Google Scholar 

  12. Luciano O (2015) Structural performances of reinforced concrete beams strengthened in shear with a cement- based fiber composite material. Compos Struct 122:316–329. https://doi.org/10.1016/j.compstruct.2014.11.059

    Article  Google Scholar 

  13. Zoi CT, Lampros NK, Dionysios AB (2015) Textile-reinforced mortar (TRM) versus fiber-reinforced polymers (FRP) in shear strengthening of concrete beams. Compos B 77:338–348. https://doi.org/10.1016/j.compositesb.2015.03.055

    Article  Google Scholar 

  14. Svetlana V, Tine T, Jan W (2014) TRC or CFRP strengthening for reinforced concrete beams: an experimental study of the cracking behavior. Eng Struct 77:49–56. https://doi.org/10.1016/j.engstruct.2014.07.040

    Article  Google Scholar 

  15. Lampros NK, Zoi T, Dionysios AB, Thanasis CT (2019) Strengthening of concrete structures with textile reinforced mortars: State-of-the-art Review. J Compos Constr 23(11):03118001. https://doi.org/10.1061/(ASCE)CC.1943-5614.0000882

    Article  Google Scholar 

  16. Andressa CHG, Davi NG, Vanessa FPD, Luiz Carlos PDF (2021) Flexural behavior of reinforced concrete beams strengthened with textile reinforced mortar. J Build Eng 33:101873. https://doi.org/10.1016/j.jobe.2020.101873

    Article  Google Scholar 

  17. Lampros NK, Christos GP (2021) Flexural strengthening of RC beams with textile-reinforced mortar composites focusing on the influence of the mortar type. Eng Struct 246:113060. https://doi.org/10.1016/j.engstruct.2021.113060

    Article  Google Scholar 

  18. Hai YZ, Hao YL, Kodur V, Meng YL, Yun Z (2022) Flexural behavior of concrete slabs strengthened with textile reinforced geopolymer mortar. Compos Struct 284:115220. https://doi.org/10.1016/j.compstruct.2022.115220

    Article  Google Scholar 

  19. Saad MR, Lampros NK, Dionysios AB (2016) Bond between textile-reinforced mortar (TRM) and concrete substrates: experimental investigation. Compos B 98:350–361. https://doi.org/10.1016/j.compositesb.2016.05.041

    Article  Google Scholar 

  20. D’Antino T, Sneed LH, Carloni C, Pellegrino C (2015) Influence of the substrate characteristics on the bond behavior of PBO FRCM-concrete joints. Constr Build Mater 30:838–850. https://doi.org/10.1016/j.conbuildmat.2015.10.045

    Article  Google Scholar 

  21. Ombres L (2015) Analysis of the bond between fabric reinforced cementitious mortar (FRCM) strengthening systems and concrete. Compos Part B 28:418–426. https://doi.org/10.1016/j.compositesb.2014.10.027

    Article  Google Scholar 

  22. Pello L, Carlos C, José TS, Leire G (2013) Non-linear analytical model of composites based on basalt textile reinforced mortar under uniaxial tension. Compos B 55:518–527. https://doi.org/10.1016/j.compositesb.2013.06.043

    Article  Google Scholar 

  23. Pello L, Carlos C, Hugo CB, José TS (2014) Experimental and numerical modeling of basalt textile reinforced mortar behavior under uniaxial tensile stress. Mater Des 55:66–74. https://doi.org/10.1016/j.matdes.2013.09.050

    Article  Google Scholar 

  24. Elisa B, Mario F, Tommaso R, Ernesto G, Gabriele M (2022) Experimental characterization of the textile-to-mortar bond through distributed optical sensors. Const Build Mater 326:126640. https://doi.org/10.1016/j.conbuildmat.2022.126640

    Article  Google Scholar 

  25. Adam S, Fredrik L, Karin L (2022) Experiments and calibration of a bond-slip relation and efficiency factors for textile reinforcement in concrete. Cement Concrete Compos 134:104756. https://doi.org/10.1016/j.cemconcomp.2022.104756

    Article  Google Scholar 

  26. American Society for Testing and Materials, ASTM D5034–21, 2021. Standard Test Method for Breaking Strength and Elongation of Textile Fabrics (Grab Test)

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Acknowledgements

This research was funded by Sultan Qaboos University through an internal grant, IG/ENG/CAED/08/03, which is highly acknowledged.

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Authors and Affiliations

  1. Department of Civil and Architectural Engineering, Sultan Qaboos University, Seeb, Oman

    Abdullah Al-Saidy, Sherif El-Gamal & Kazi Abu Sohail

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  1. Abdullah Al-Saidy
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  2. Sherif El-Gamal
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  3. Kazi Abu Sohail
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Correspondence to Abdullah Al-Saidy.

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Al-Saidy, A., El-Gamal, S. & Abu Sohail, K. Strengthening of Reinforced Concrete (RC) Beams using Textile Reinforced Mortars (TRMs). Int J Civ Eng 21, 2023–2035 (2023). https://doi.org/10.1007/s40999-023-00867-9

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  • DOI: https://doi.org/10.1007/s40999-023-00867-9

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