Structural Strengths of Concrete Beams Reinforced With Various Types of Steel Reinforcements

Authors

  • AUDU Mohammed Taiwo Department of Civil Engineering, University of Abuja, FCT, Abuja, Nigeria
  • Kolade Oluwole Olarewaju Department of Civil and Environmental Engineering, University of Lagos, Nigeria

DOI:

https://doi.org/10.30564/jaeser.v2i1.384

Abstract

The recurrent premature failures of public infrastructure which render most constructed facilities structurally deficient and functionally obsolete require urgent attention. This paper presents the results of the investigated properties and durability of both local and imported steel reinforcing bars in Nigeria. Flexural strengths of concrete structures reinforced with steel rebar specimens and subjected to third-point loading of 150 mm × 150 mm × 750 mm beam specimens of grade 20 N/mm2 concrete in accordance with BS 1881. The flexural stiffness of imported bars for 12 mm and 16 mm were 22.3 kN/mm2 and 49.9 kN/mm2 respectively, while the local and TMT imported bars were 11.5% and 7.5% lower. In conclusion, though the imported bars marginally satisfied the ASTM and BS standards in strength except durability, while local bars did not meet the two requirements. Hence, the development of National Building Codes that reflect the actual material characteristics is imperative to avert premature failure.

Keywords:

Steel; local; Imported; Reinforcements; Concrete; Modulus of rupture;

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How to Cite

Taiwo, A. M., & Olarewaju, K. O. (2019). Structural Strengths of Concrete Beams Reinforced With Various Types of Steel Reinforcements. Journal of Architectural Environment & Structural Engineering Research, 2(1), 1–5. https://doi.org/10.30564/jaeser.v2i1.384

Issue

Vol. 2 , Iss. 1 (January 2019)

Article Type

Article

License

Copyright © 2019 AUDU Mohammed Taiwo, Kolade Oluwole Olarewaju

Creative Commons License

This is an open access article under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) License.

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