MECHANICAL PROPERTIES OF RC BEAMS WITH AFRP SHEETS UNDER A SUSTAINED LOAD
Keywords:
aramid fiber reinforced polymer, kelvar laminates, hydraulic conductivity test, reinforcement corrosion
Abstract
In this research, an attempt was made to find the permeability of an RC beam with AFRP by making use of the hydraulic conductivity test and a double-ring infiltrometer. Based on the state-of-the-art methodology, three different AFRP samples, Kelvar 29, Kelvar 49 and Kelvar 149, were considered as the laminates to prevent the deflection of the beams. Accelerated corrosion was carried out using impressed current, and induced corrosion was calculated using the galvanostatic method. In this project, nine RCC beams were strengthened with aramid FRP sheets. Novel results were obtained using three different layers and three different patterns of AFRP sheets. Experimental investigation showed that the mechanical properties of the reinforced concrete beams were enhanced (by 10 %) with Kelvar 149. The durability and corrosion resistance of concrete were achieved due to the increased number of layers of the AFRP sheet. The entire research shows that three layers of Kelvar 149 allow better performance of the concrete specimens. No other results based on the abrasion resistance and hydraulic conductivity of beams with AFRP laminates are available in the literature.
References
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DOI:10.15623/IJRET.2014.0307054
[25] Samer Barakat, Salah Al-Toubat, Moussa Leblouba, & Eman Al Burai. (2020). Behavioral trends of shear strengthened reinforced concrete beams with externally bonded fiber-reinforced polymer. Structural Engineering and Mechanics an International Journal, South korea, 69, 579-589.
DOI:10.12989/sem.2020.76.1.067
[26] Sundarraja, M.C., & Rajamohan, S. (2009). Strengthening of RC Beams in Shear Using GFRP Inclined Strips - An Experimental Study. Construction and Building Materials, 23(2), 856-864.
https://doi.org/10.1016/j.conbuildmat.2008.04.008
[27] Wang, L., He, Z., & Cai, X. (2011). Characterization of pozzolanic reaction and its effect on the CSH Gel in fly Ash-cement paste. Journal of Wuhan University of Technology-Mater. Sci. Ed., 26(2), 319-324.
https://doi.org/10.1007/s11595-011-0222-4
https://doi.org/10.1177/0731684412450350
[2] Adil Dar, M., Subramanian, N., Dar, A.R., Amer Iliyas Rather., Mir Atif., & Sayeeda Syed. (2019). Strengthening of capacity deficient RC beams - An experimental approach. Structural Engineering and Mechanics an International Journal, South korea, 70(3), 303-310.
DOI: https://doi.org/10.12989/sem.2019.70.3.303.
[3] Amer, M., Ibrahim, Mohammed., & Sh. Mahmood. (2009). Finite Element Modeling of Reinforced Concrete Beams Strengthened with F Laminates. European Journal of Scientific Research, 30(4), 526-541.
[4] Banjara, N.K., & Ramanjaneyulu, K. (2017). Experimental and numerical investigations on the performance evaluation of shear deficient and GFRP strengthened reinforced concrete beams. Construction and Building Materials, 137, 520–534. https://doi.org/10.1016/j.conbuildmat.2017.01.089.
[5] Behnam, V., & Shami, N. (2016). Self-compacting light-weight concrete; mix design and proportions. Struct. Eng. Mech., 58(1), 143-161.
https://doi.org/10.12989/sem.2016.58.1.143
[6] Carlo Pellegrino, & Claudio Modena. (2006). Fiber-Reinforced Polymer Shear Strengthening of Reinforced Concrete Beams: Experimental Study and Analytical Modeling. ACI Structural Journal, 103(5), 720-728.
[7] Chen, J.F., & Teng, J.G (2003). Shear Capacity of FRP-Strengthened RC Beams: FRP Debonding. Construction and Building Materials, 17(1), 27–41.
DOI:10.1016/S0950-0618(02)00091-0
[8] Deifalla, A., Awad, A., & Elgarhy, M. (2013). Effectiveness of externally bonded CFRP strips for strengthening flanged beams under torsion: An experimental study. Engineering structures, 56, 2065-2075. DOI10.1016/j.engstruct.2013.08.027
[9] Grace, N.F., Sayed, G.A., Soliman, A.K., & Saleh, K.R. (1999). Strengthening reinforced concrete beams using fiber reinforced polymer (FRP) laminates. ACI Structural Journal, 188(8), 865–874. DOI:10.14359/741.
[10] Hassaine Daouadji Tahar, Abbes Boussad, Rabahi Abderezak, Benferhat Rabia, Abbes Fazilay, & Adim Belkacem. (2019). Flexural behaviour of steel beams reinforced by carbon fibre reinforced polymer: Experimental and numerical study. Structural Engineering and Mechanics an International Journal, South korea, 72(4), 409-419.
DOI: https://doi.org/10.12989/sem.2019.72.4.409
[11] Islam, M.R., Mansur, M.A., & Maalej, M. (2005). Shear strengthening of RC deep beams using externally bonded FRP systems. Cement and Concrete Composites, 27(3), 413–420. DOI:10.1016/j.cemconcomp.2004.04.002
[12] IS 10262:2009, Concrete Mix Proportioning – Guidelines. Bureau of Indian Standards, New Delhi.
[13] Kayali, O. (2008). Fly ash lightweight aggregates in high performance concrete. Construction and building materials, 22(12), 2393-2399.
[14] Kareem, R.S., Al-Mohammedi, A., Dang, C.N., Martí-Vargas, J.R., & Hale, W.M. (2019). Bond model of 15.2-mm strand with consideration of concrete creep and shrinkage. Mag. Concr. Res., 72(15), 799-810.
https://doi.org/ 10.1680/jmacr.18.00506
[15] Keun-Hyeok Yang, Kyung-Ho Lee, & Hyun-Sub Yoon. (2019). Flexural tests on two-span unbonded post-tensioned lightweight concrete beams. Structural Engineering and Mechanics an International Journal, South korea, 72(5), 631-642. https://doi.org/10.12989/sem.2019.72.5.631
[16] Kulkarni, A. M., & Datta, D. (2019). Probabilistic analysis of RC beams according to IS456: 2000 in limit state of collapse. Struct. Eng. Mech, 71(2), 165-173.
[17] Kumari, & Nayak, A.N., (2019). Strengthening of shear deficient RC deep beams using GFRP sheets and mechanical anchors. Canadian Journal of Civil Engineering, Canada, 48(1). https://doi.org/10.1139/cjce-2019-0333
[18] Mohammad Reza Mohammadizadeh, Mohammad Javad Fadaee, & Hamid Reza Ronagh. (2009). Improving torsional behaviour of reinforced concrete beams strengthened with carbon fibre reinforced polymer composite. Iranian Polymer Journal, 18(4), 315–327.
[19] Mun, J. H., & Yang, K. H. (2019). Flexural behaviour of externally post-tensioned two-span lightweight concrete beams. Magazine of Concrete Research, 71(22), 1193-1203.
[20] Nabil, F. Grace, George Abdel-Sayed, & Wael, F. Ragheb. (2002). Strengthening of Concrete Beams Using Innovative Ductile Fiber-Reinforced Polymer Fabric. ACI Structural journal, 99(5), 692-700. DOI:10.14359/12309
[21] Nadeem, A., & Siddiqui. (2009). Experimental Investigation of RC Beams Strengthened with Externally Bonded FRP Composites. Latin American journal of solid and structures, 6(4), 343-362.
[22] Obaidat, Y., Heyden, S., Dahlblom, O., Abu-Farsakh, G., & Abdel-Jawad, Y. (2011). Retrofitting of reinforced concrete beams using composite laminates. Construction and Building Materials, 25(2), 591-597.
https://doi.org/10.1016/j.conbuildmat.2010.06.082
[23] Ruyue Liu, & Yong Yang. (2019). Analysis on damage of RC frames retrofitted with buckling-restrained braces based on estimation of damage index. Structural Engineering and Mechanics an International Journal, South korea, 70(6), 781-791. DOI: https://doi.org/10.12989/sem.2019.70.6.781
[24] Rameshkumar, U More., Kulkarni, D. B., (2014). Flexural behavioral study on RC beam with externally bonded aramid fiber reinforced polymer. International Journal of Research in Engineering and Technology, 03(7), 316 – 321.
DOI:10.15623/IJRET.2014.0307054
[25] Samer Barakat, Salah Al-Toubat, Moussa Leblouba, & Eman Al Burai. (2020). Behavioral trends of shear strengthened reinforced concrete beams with externally bonded fiber-reinforced polymer. Structural Engineering and Mechanics an International Journal, South korea, 69, 579-589.
DOI:10.12989/sem.2020.76.1.067
[26] Sundarraja, M.C., & Rajamohan, S. (2009). Strengthening of RC Beams in Shear Using GFRP Inclined Strips - An Experimental Study. Construction and Building Materials, 23(2), 856-864.
https://doi.org/10.1016/j.conbuildmat.2008.04.008
[27] Wang, L., He, Z., & Cai, X. (2011). Characterization of pozzolanic reaction and its effect on the CSH Gel in fly Ash-cement paste. Journal of Wuhan University of Technology-Mater. Sci. Ed., 26(2), 319-324.
https://doi.org/10.1007/s11595-011-0222-4
Published
2022-08-16
How to Cite
1.
Mohanraj R, Senthilkumar S, Padmapoorani P. MECHANICAL PROPERTIES OF RC BEAMS WITH AFRP SHEETS UNDER A SUSTAINED LOAD. MatTech [Internet]. 2022Aug.16 [cited 2025Jun.15];56(4):365–372. Available from: https://mater-tehnol.si/index.php/MatTech/article/view/481
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