Investigation into the Mechanical Properties and Microstructure of a Local and an Imported Reinforcement Bar
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Abstract
This study investigates the mechanical properties and microstructure of locally manufactured and imported steel reinforcement bars, which are used in industrial and wastewater settings. Imported Steel (Brazilian steel) and local steel (Land craft industrial Steel) were used for the experiment. Tensile, hardness and impact tests were done and Optical microscope was employed to examine the microstructure of the steels before and after corrosion when immersed in 1 molar of sulphuric acid solution. Ultimate tensile strength for land craft industrial steel was 708.30 MPa, the yield strength 520 MPa while the % elongation was 25.64. However, for the Brazilian steel, ultimate tensile strength was 538.51 MPa, yield strength 525 MPa and % elongation was 16.32. The average hardness value for land craft industrial steel was 194.80 HV, while for Brazilian steel; the average hardness value was 182.38 HV. The impact result for land craft industrial steel and Brazilian steel were 41.03 J and 35.68 J respectively., the Brazilian steel depicted pitting corrosion that is wide, elliptical, and whitish, suggesting that the corrosion has a noticeable elongation in one direction while Local craft industrial steel was observed to have open and deep pits suggesting a localized form of corrosion.
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References
Ede, A.N. (2010). Structural Stability in Nigeria and Worsening Environmental Disorder: the way forward. In Proceedings with the West Africa Built Environment Research Conference Accra Ghana, July 26-28, 489-498
Ashenafi, A. (2017). Mechanical analysis on locally produced re-bars: Analysis on mechanical properties of locally produced reinforcement bars for building construction application. Retrieved from https://www.academia.edu/34321294/mechanical_analysis_on_locally_produced_re_bars_analysis_on_mechanical_properties_of_locally_produced_reinforcement_bars_for_building_construction_application
Frantisek Bahleda, Jozef Prokop, Peter Kotes, & Agnieszka Wdowiak-Postulak (2023). Mechanical Properties of Corroded Reinforcement. Buildings, 13(4), 855. https://doi.org/10.3390/buildings13040855
Ofuyekpone O., Emordi N. & Utu O. G. (2015). Effect of sulphuric acid concentration on the inhibiting action of 0.001M adenine solution during the corrosion of AISI 304L. Advances in Applied Science Research, 6(9):17-26
Leon, Roberto T.; Jeon, Moon-Gu. (1994). Effect of Reinforcing Bar Chemical Composition on Corrosion Resistance. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/156006.
Nwankwo, J. O. & Abubakar, A. (2018). Impact of corrosion on mechanical properties of mild steel reinforcement bars. Nigerian Journal of Technology, 37(3), 686–692.
Katiyar, P. K., Behera, P. K., Misra, S., & Mondal, K. (2019). Effect of Microstructures on the Corrosion Behavior of Reinforcing Bars (Rebar) Embedded in Concrete. Metals and Materials International, 25(5), 1209–1226. Retrieved from https://link.springer.com/article/10.1007/s12540-019-00288-1
Kalfat, R. & Al-Mahaidi, R. (2010). Influence of surface preparation on fatigue behavior of CFRP-retrofitted steel structures. Composite Structures, 92(6), 1245–1255.
Fang, C., Lundgren, K., Chen, L. & Zhu, C. (2004). Corrosion influence on bond in reinforced concrete structures. Cement and Concrete Research, 34(11), 2159–2167.
Ganiyu A., Alabi F., Ayoade A. O, Odusote J. K. & Akanni A.A. (2016). Assessment of Suitability of Nigerian Made Steel Bars for Structural Applications. J. Ass. Prof. Eng. Trinidad and Tobago. 44( 2) 17–23
Harald Rojacz, Markus Varga, & Horst Winkelmann (2013), Deformation Mechanisms at Elevated Temperatures: Influence of Momenta and Energy in the Single Impact Test. World Academy of Science, Engineering and Technology. 77, 5-23
Qiuyue Wang, Zilong Wang, Chengtao Li, Xinglong Qiao, Hao Guan, Zhou Zhou & Dan Song (2024) Research Progress in Corrosion Behavior and Anti-Corrosion Methods of Steel Rebar in Concrete. Metals. 14, 862. https://doi.org/10.3390/met14080862
Shuaib, O.& Mohammed, A. (2015). Mechanical evaluation of steel reinforcement bars produced by local manufacturers. Engineering Review, 35(1), 1–9.
Akinyele, J. O., Olutoge, F. A. & Adeniyi, D. O. (2016). Evaluation of mechanical properties of locally produced steel reinforcement bars in southwestern Nigeria. Journal of Emerging Trends in Engineering and Applied Sciences, 7(2), 84–90.
Ettu, L. O., Ajoku, T. & Ezeh, J. C. (2013). Variation of mechanical properties of rebars from different steel mills in Nigeria. International Journal of Engineering Science Invention, 2(8), 61–66.
Al-Mahaidi, R. & Kalfat, R. (2012). Fatigue performance of reinforced concrete beams strengthened with CFRP composites. Composite Structures, 94(8), 2430–2437.
Sy El, Keinde Dame & Bodian Malang (2023). Comparative Evaluation of the Chemical Composition and Physical Properties of Reinforced Concrete Steel Bars Used in Construction in Senegal
Open Journal of Civil Engineering. 13. 292-302. 10.4236/ojce.2023.132022.
Leramo R. O., Adekoya L. O., Kilanko O., Oyedepo S. O., Eluwa S. E., Babalola P. O., Adeosun S. O., Leramo N. T., Aiyedun P. O., Ohunakin O. S., Ajayi O. O. & Fayomi O. S. I. (2022). A comparative analysis of the chemical composition and compliance level to established standards of concrete reinforcement steel rods rolled in Nigeria. Heliyon, 8(6): e09597. doi: 10.1016/j.heliyon.2022.e09597
Ahmed, E., Ibrahim, S., Galal, M., Elnekhaily, S. A., & Allam, T. (2021). Microstructure and Mechanical Properties of V-Alloyed Rebars Subjected to Tempcore Process. Metals, 11(2), 246. https://doi.org/10.3390/met11020246
Dan Song, Guowei Wang, Falin Yang, Huande Chen, Ningning Liang, Han Ma, Jinghua Jiang & Xiaolong Ma (2020). Microstructure and deformation behavior of a novel steel rebar: Effect of the heterogeneous microstructure of soft ferrite and Hard bainite, Journal of Materials Research and Technology, 9(6), 12281-12292. https://doi.org/10.1016/j.jmrt.2020.08.085.
Luhembwe B.J., Beya K.M., Ilunga Ndala W., Tshimanga E. & Kalaka Mayur C. (2024). 7354 Evaluation of the Quality of Reinforcing Bars on the Market in the City of Lubumbashi in DR Congo Kunyonga. International Journal of Current Science Research and Review, 7(9), 7344-7354. doi: 10.47191/ijcsrr/V7-i9-52
Annan Ebenezer, Nana Lucas, Damoah Wiredu, Bensah Yaw, Konadu David & Degbezui, Jonathan. (2022). Study of the microstructure and mechanical properties of steel rebars locally produced in Ghana. Geoscience, 16, 1-9.
Fente Tefera Eniyew, Tsegaw Assefa Asmare, Abebe Asmamaw Tegegne & Admasu Bimrew Tamrat (2024). - Investigating the quality of ethiopian steel reinforcing bars through comprehensive analysis. Heliyon, 10(10). doi: 10.1016/j.heliyon.2024.e31661
Muñiz, L., Trinidad, J., & Galdos, L. (2023). Analysis of the Mechanical and Microstructural Fluctuations of High-Strength Steels and Their Effect on Bending Angle. Metals, 13(9), 1603. https://doi.org/10.3390/met13091603
ASTM E8/E8M-22 (2022). Standard Test Methods for Tension Testing of Metallic Materials, ASTM International.
ASTM E23 (2008). Standard Test Method for Izod Bar Impact Testing of Metallic Materials, American Society of Testing and Materials.
ASTM E92-82 (2003). Standard Test Method for Vickers Hardness of Metallic Materials
Alo F. I, Atanda P. O, Daniyan A. A, Abodunrin O. W & Oluwasegun K.M. (2017). An Assessment of Imported and Local Constructional Steel in Nigeria: Analysis by One-Way ANOVA. International Journal of Materials Engineering, 7(3): 45-51. doi: 10.5923/j.ijme.20170703.01
Ehteram A. Noor & Aisha H. Al-Moubaraki (2008). Corrosion Behavior of Mild Steel in Hydrochloric Acid Solutions, International Journal of Electrochemical Science, 3(7), 806 – 818. https://doi.org/10.1016/S1452-3981(23)15485-X.