The Influence of Basalt and Steel Fibers on the Flexural Behavior of RC Beams

Authors: Yasmin Z. Murad, Haneen M. Abdl-Jabbar

Abstract:

An experimental program is conducted in this research to investigate the influence of basalt fibers and steel fibers on the flexural behavior of RC beams. Reinforced concrete beams are constructed using steel fiber concrete and basalt fiber concrete. Steel and basalt fibers are included in a percentage of 15% and 2.5% of the total cement weight, respectively. Test results have shown that basalt fibers have increased the load carrying capacity of the beams up to 30% and the maximum deflection to almost 2.4 times that measured in the control specimen. It has also shown that steel fibers have increased the load carrying capacity of the beams up to 47% and the ultimate deflection is almost duplicated compared to the control beam. Steel and basalt fibers have increased the ductility of the reinforced concrete beams.

Keywords: Basalt fiber, steel fiber, reinforced concrete beams, flexural behavior.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.3455747

References:

[1] L. L. Away, “Key issues in the use of fibre reinforced polymer (FRP) composites in the rehabilitation and retrofitting of concrete structures.”
[2] Y. Murad, “The influence of CFRP orientation angle on the shear strength of RC beams,” Open Constr. Build. Technol. J., vol. 12, 2018.
[3] Yasmin Murad, “An experimental study on flexural strengthening of RC beams using CFRP sheets,” Int. J. Eng. Technol., vol. 7, pp. 2075–2080, 2018.
[4] A. Mofidi and O. Chaallal, “Tests and Design Provisions for Reinforced-Concrete Beams Strengthened in Shear Using FRP Sheets and Strips,” Int. J. Concr. Struct. Mater., vol. 8, no. 2, pp. 117–128, Jun. 2014.
[5] A. K. Samanta, D. K. Singha Roy, J. V Thanikal, N. Aravind, and S. Roy, “Retrofitting of reinforced concrete beams using fibre reinforced polymer (FRP) composites – A review,” J. Urban Environ. Eng. J. Urban Environ. Eng. J. Urban Environ. Eng., no. 71, pp. 164–175, 2013.
[6] J. Dong, Q. Wang, D. He, and Zhongwei Guan, “CFRP sheets for flexural strengthening of RC beams,” in 2011 International Conference on Multimedia Technology, 2011, pp. 1000–1003.
[7] A. Ashour, S. El-Refaie, and S. Garrity, “Flexural strengthening of RC continuous beams using CFRP laminates,” Cem. Concr. Compos., vol. 26, no. 7, pp. 765–775, Oct. 2004.
[8] M. M. Önal, “Strengthening Reinforced Concrete Beams with CFRP and GFRP,” Adv. Mater. Sci. Eng., vol. 2014, pp. 1–8, Jul. 2014.
[9] R. Kharatmol, P. Sananse, R. Tambe, M. Raksha, and J. Khare, “Strengthening of Beams Using Carbon Fibre Reinforced Polymer,” Int. J. Emerg. Eng. Res. Technol., vol. 2, no. 3, pp. 119–125, 2014.
[10] T. Norris, H. Saadatmanesh, and M. R. Ehsani, “Shear and Flexural Strengthening of R/C Beams with Carbon Fiber Sheets,” J. Struct. Eng., vol. 123, no. 7, pp. 903–911, Jul. 1997.
[11] H. P. Behbahani, B. Nematollahi, A. R. Mohd, and F. C. L. Sam, International journal of sustainable construction engineering technology. Penerbit UTHM, Universiti Tun Hussein Onn Malaysia.
[12] F. Altun, T. Haktanir, and K. Ari, “Effects of steel fiber addition on mechanical properties of concrete and RC beams,” Constr. Build. Mater., vol. 21, no. 3, pp. 654–661, Mar. 2007.
[13] M. Abdulhadi, “A comparative Study of Basalt and Polypropylene Fibers Reinforced Concrete on Compressive and Tensile Behavior,” Int. J. Eng. Trends Technol., vol. 9, no. 6, 2014.
[14] R Singaravadivelan, P.Chinnadurai, KL.Muthuramu, and P.Vincent, “Flexural Behaviour of Basalt Chopped Strands Fiber Reinforced Concrete Beams,” in 2nd International Conference on Chemical, Ecology and Environmental Science, 2013.
[15] J. Krassowska and A. Lapko, “The Influence of Steel and Basalt Fibers on the Shear and Flexural Capacity of Reinforced Concrete Beams,” 2013.
[16] D. Fadil, N. Taysi, and A. Ahmed, “The Investigation of Basalt and Glass Fibers on the Behavior of Reinforced Concrete Beams,” 2018.