Performance of Concrete Reinforced With Recycled Tyre Steel Fibres at Elevated Temperatures
Article Sidebar
Main Article Content
Abstract: Concrete is very low in ductility; to improve this property, the use of steel fibres spread in all its sections to reinforce it, has been studied by many researchers. Steel fibres are short metallic materials of small diameter, manufactured from steel ore, in the absence of adequate manufacturing steel factories in a third world country like Nigeria, the utilization of steel fibres derived from recycled waste tyre wire as reinforcement in concrete has been investigated in this study, focusing on its impact on the mechanical properties of concrete after exposure to elevated temperatures. Concrete specimens with varying fibre dosages (0%, 0.5%, 1%, and 1.5%) were evaluated for compressive, split tensile, and flexural strengths after 28days curing, at ambient temperature and high temperatures. Furthermore, concrete reinforced with steel fibres exhibited improved compressive strength retention after exposure to temperatures ranging from 200°C to 800°C compared to control concrete. However, there was no significant strength retention of split tensile strength at elevated temperatures. There was a direct correlation between flexural strength loss after elevated temperature exposure, and increase in fibre dosage. Microstructural analysis revealed differences in the morphology of concrete specimens before and after exposure to high temperatures. Overall, this study underscores the beneficial effects of incorporating recycled waste tyre wire as fibre reinforcement in concrete, offering a sustainable solution for enhancing the mechanical properties and resilience of concrete structures in both normal and high-temperature environments.
Downloads
References
C. R. Gagg, "Cement and concrete as an engineering material: an historic appraisal and case study analysis.," Engineering Failure Analysis, vol. 40, pp. 114-140, 2014.
A. A. Shah and Y. Ribakov, "Recent trends in steel fibered high-strength concrete," Materials & Design, p. 4122–4151, 2011.
N. B. Siraj, A. Dinku and N. S. Kedir, "Synthesis and characterization of pyrolised recycled steel fibers for use in reinforced concrete," International Journal of Engineering Sciences & Management Research, vol. 4, no. 6, pp. 21-32, 2017.
H. M. Fawzy, A. A. Mustafa and A. E. Abd El Badie, "Effect of Elevated Temperature on Concrete Containing Waste Tires Rubber," The Egyptian International Journal of Engineering Sciences and Technology, vol. 29, pp. 1-13, 2020.
C. N. Harrison-Obi, "Environmental impact of end of life tyre (ELT) or scrap tyre waste pollution and the need for sustainable waste tyre disposal and transformation mechanism in Nigeria," Nnamdi Azikiwe University Journal of International Law and Jurisprudence, vol. 10, no. 2, pp. 60-70, 2019.
Y. Li, P. Pimienta, N. Pinoteau and K. Tan, "Effect of aggregate size and inclusion of polypropylene and steel fibers on explosive spalling and pore pressure in ultra-high-performance concrete (UHPC) at elevated temperature," Cement and Concrete Composites, vol. 99, pp. 62-71, 2019.
S. Rawat, C. K. Lee and Y. X. Zhang, "Performance of fibre-reinforced cementitious composites at elevated temperatures: A review," Construction and Building Materials, vol. 292, p. 123382, 2021.
S. Anumala and U. Sharma, "Residual Mechanical Properties of Fibre Reinforced Concrete after Exposure to Elevated Temperature," Journal of Structural Fire Engineering, vol. 2, no. 2, pp. 123-137, 2011.
W. Khalil, "Influence of High Temperature on Steel Fiber Reinforced Concrete," Journal of Engineering and Development, vol. 10, no. 2, pp. 139-150, 2006.
G. S. Gondokusumo, A. Venkateshwaran, S. Li and J. Y. Liew, "Residual flexural tensile strength of normal-weight and lightweight steel fibre-reinforced concrete at elevated temperatures," Construction and Building Materials , vol. 367, 2023.
Q. Ma, R. Guo, R. Zhao, Z. Lin and K. He, "Mechanical properties of concrete at high temperature—A review," Construction and Building Materials, vol. 93, pp. 371-383, 2015.
J. Novák and A. Kohoutková, "Fibre reinforced concrete exposed to elevated temperature," in IOP Conference Series: Materials science and engineering, Honolulu, 2017.
K. K. Sideris, P. Manita and E. Chaniotakis, "Performance of thermally damaged fibre reinforced concrete," Construction and Building Materials, vol. 23, pp. 1232-1239, 2009.
H. Wu, X. Lin and A. Zhou, "A review of mechanical properties of fibre reinforced concrete at elevated temperatures," Cement and Concrete Research, vol. 135, p. 21, 2020.
British Standards Institution, "BS EN 197-1 Cement Part 1: Composition, Specifications and Conformity Criteria for Common Cements.," BSI Standards, London, 2011.
British Standards Institution, "BS EN 12620: Aggregates for Concrete," BSI, London, 2013.
British Standard Institution, "BS EN 1008: Mixing water for concrete - Specification for sampling, testing and assessing the suitability of water," BSI Publishing, 2015.
American Society for Testing and Materials, "A820/A820M: Standard Specification for Steel Fibres for FibreReinforced," ASTM International, 2011.
British Standards Institution, "BS EN 14889-1, Fibres for concrete. Steel fibres. Definition, specifications and conformity," BSI, 2006.
British Standards Institution, "BS EN 12350-2:2019 Testing fresh concrete. Slump test," The British Standards Institution, London, 2019.
British Standards Institution, "BS EN 12390-3:2019 Testing hardened concrete. Compressive strength of test specimens," The British Standards Institution, London, 2019.
British Standards Institution, "BS EN 12390-5:2019 Testing hardened concrete. Flexural strength of test specimens," The British Standards Institution, 2019.
S. Gambo, K. Ibrahim, A. Aliyu, A. G. Ibrahim and H. Abdulsalam, "Performance of Metakaolin-Based Geopolymer Concrete at Elevated Temperature," Nigerian Journal of Technology , vol. 39, no. 3, p. 732 – 737, 2020.
ACI Committee 544, "State of The Art Report on Fiber Reinforced Concrete," American Concrete Institute, Detroit, 2002.
P. Shinkar, D. Kakade and A. Wadekar, "Effect of Elevated Temperature on Compressive Strength and Flexural Strength of Fiber Reinforced Concrete," International Journal of Concrete Technology , vol. 3, no. 1, 2017.
British Standards Institution, "BS 812-2: Testing aggregates - Methods for determination of density," London: BSI, 1995.
British Standards Institution, "BS EN 12390-6: Testing hardened concrete. Tensile splitting strength of test specimens," The British Standards Institution, London, 2020.
This work is licensed under a Creative Commons Attribution 4.0 International License.
All articles published in our journal are licensed under CC-BY 4.0, which permits authors to retain copyright of their work. This license allows for unrestricted use, sharing, and reproduction of the articles, provided that proper credit is given to the original authors and the source.