PHYSICAL, GEOMETRICAL, CHEMICAL AND MECHANICAL PROPERTIES OF SOME SELECTED REINFORCING STEEL BARS FROM STEEL PLANTS.
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| Title: | PHYSICAL, GEOMETRICAL, CHEMICAL AND MECHANICAL PROPERTIES OF SOME SELECTED REINFORCING STEEL BARS FROM STEEL PLANTS. |
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| Authors: | Onuigbo, O. C.1 ositadimma.onuigbo@gmail.com, Edokpia, R. O.1 ralph.edokpia@uniben.edu, Eboigbe, C. I.1 christopher.eboigbe@uniben.edu |
| Source: | Academic Journal of Manufacturing Engineering. 2026, Vol. 24 Issue 1, p132-141. 10p. |
| Subjects: | Reinforcing bars, Tensile strength, Geometry, Properties of matter, Chemical structure, American Society for Testing Materials, Mechanical behavior of materials, Buildings safety measures |
| Geographic Terms: | Nigeria |
| Abstract: | This study critically examined the quality of reinforcing steel bars in Nigeria due to frequent building collapses. It investigated five sizes (10-25 mm) from six local brands (A-F) for compliance with necessary standards. Testing included mechanical (tensile), hardness, chemical, geometrical, physical properties, and SEM-EDS analysis. Yield Strength showed significant variation, ranging from 360.96 MPa to 634.99 MPa. Ultimate Tensile Strength (UTS) ranged from 573.62 MPa to 791.43 MPa, and Elongation showed adequate ductility (16.66% to 41.31%). Only sample A25 failed the NIS and ASTM yield strength standards. Only a few samples (A10, B10, B12, E20) met the stricter BS 4449 yield strength standard.8All brands met the ASTMA706 and NIS 117 standards for UTS, but A10 and A20 failed the BS 4449 threshold. In terms of chemical composition (C, Mn, P, S, CEV), only Brand A consistently met all (BS 4449, NIS, ASTM A706) requirements. Brands B, C, D, E, and F showed inconsistent adherence to the required chemical composition standards. [ABSTRACT FROM AUTHOR] |
| Copyright of Academic Journal of Manufacturing Engineering is the property of Academic Association for Manufacturing Engineering and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 192718225 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: PHYSICAL, GEOMETRICAL, CHEMICAL AND MECHANICAL PROPERTIES OF SOME SELECTED REINFORCING STEEL BARS FROM STEEL PLANTS. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Onuigbo%2C+O%2E+C%2E%22">Onuigbo, O. C.</searchLink><relatesTo>1</relatesTo><i> ositadimma.onuigbo@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Edokpia%2C+R%2E+O%2E%22">Edokpia, R. O.</searchLink><relatesTo>1</relatesTo><i> ralph.edokpia@uniben.edu</i><br /><searchLink fieldCode="AR" term="%22Eboigbe%2C+C%2E+I%2E%22">Eboigbe, C. I.</searchLink><relatesTo>1</relatesTo><i> christopher.eboigbe@uniben.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Academic+Journal+of+Manufacturing+Engineering%22">Academic Journal of Manufacturing Engineering</searchLink>. 2026, Vol. 24 Issue 1, p132-141. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Reinforcing+bars%22">Reinforcing bars</searchLink><br /><searchLink fieldCode="DE" term="%22Tensile+strength%22">Tensile strength</searchLink><br /><searchLink fieldCode="DE" term="%22Geometry%22">Geometry</searchLink><br /><searchLink fieldCode="DE" term="%22Properties+of+matter%22">Properties of matter</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+structure%22">Chemical structure</searchLink><br /><searchLink fieldCode="DE" term="%22American+Society+for+Testing+Materials%22">American Society for Testing Materials</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+behavior+of+materials%22">Mechanical behavior of materials</searchLink><br /><searchLink fieldCode="DE" term="%22Buildings+safety+measures%22">Buildings safety measures</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Nigeria%22">Nigeria</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This study critically examined the quality of reinforcing steel bars in Nigeria due to frequent building collapses. It investigated five sizes (10-25 mm) from six local brands (A-F) for compliance with necessary standards. Testing included mechanical (tensile), hardness, chemical, geometrical, physical properties, and SEM-EDS analysis. Yield Strength showed significant variation, ranging from 360.96 MPa to 634.99 MPa. Ultimate Tensile Strength (UTS) ranged from 573.62 MPa to 791.43 MPa, and Elongation showed adequate ductility (16.66% to 41.31%). Only sample A25 failed the NIS and ASTM yield strength standards. Only a few samples (A10, B10, B12, E20) met the stricter BS 4449 yield strength standard.8All brands met the ASTMA706 and NIS 117 standards for UTS, but A10 and A20 failed the BS 4449 threshold. In terms of chemical composition (C, Mn, P, S, CEV), only Brand A consistently met all (BS 4449, NIS, ASTM A706) requirements. Brands B, C, D, E, and F showed inconsistent adherence to the required chemical composition standards. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Academic Journal of Manufacturing Engineering is the property of Academic Association for Manufacturing Engineering and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.5281/zenodo.19219011 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 132 Subjects: – SubjectFull: Reinforcing bars Type: general – SubjectFull: Tensile strength Type: general – SubjectFull: Geometry Type: general – SubjectFull: Properties of matter Type: general – SubjectFull: Chemical structure Type: general – SubjectFull: American Society for Testing Materials Type: general – SubjectFull: Mechanical behavior of materials Type: general – SubjectFull: Buildings safety measures Type: general – SubjectFull: Nigeria Type: general Titles: – TitleFull: PHYSICAL, GEOMETRICAL, CHEMICAL AND MECHANICAL PROPERTIES OF SOME SELECTED REINFORCING STEEL BARS FROM STEEL PLANTS. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Onuigbo, O. C. – PersonEntity: Name: NameFull: Edokpia, R. O. – PersonEntity: Name: NameFull: Eboigbe, C. I. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: 2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 15837904 Numbering: – Type: volume Value: 24 – Type: issue Value: 1 Titles: – TitleFull: Academic Journal of Manufacturing Engineering Type: main |
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