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Hobbs B, Tchoketch Kebir M. Non-destructive testing techniques for the forensic engineering investigation of reinforced concrete buildings. Forensic Sci Int. 2006;167(2):167-72doi: 10.1016/j.forsciint.2006.06.065.
Hobbs, B., & Tchoketch Kebir, M. (2007). Non-destructive testing techniques for the forensic engineering investigation of reinforced concrete buildings. Forensic science international, 167(2), 167-72. https://doi.org/10.1016/j.forsciint.2006.06.065
Hobbs, Brian, and Tchoketch Kebir, Mohamed. "Non-destructive testing techniques for the forensic engineering investigation of reinforced concrete buildings." Forensic science international vol. 167,2 (2007): 167-72. doi: https://doi.org/10.1016/j.forsciint.2006.06.065
Hobbs B, Tchoketch Kebir M. Non-destructive testing techniques for the forensic engineering investigation of reinforced concrete buildings. Forensic Sci Int. 2007 Apr 11;167(2):167-72. doi: 10.1016/j.forsciint.2006.06.065. Epub 2006 Aug 14. PMID: 16904854.
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Forensic Sci Int. 2007 Apr 11;167(2):167-72. doi: 10.1016/j.forsciint.2006.06.065. Epub 2006 Aug 14.

Non-destructive testing techniques for the forensic engineering investigation of reinforced concrete buildings.

Forensic science international

Brian Hobbs, Mohamed Tchoketch Kebir

Affiliations

  1. Centre for Forensic Investigations, School of Science & Technology, University of Teesside, Middlesbrough, UK.

PMID: 16904854 DOI: 10.1016/j.forsciint.2006.06.065

Abstract

This study describes in detail the results of a laboratory investigation where the compressive strength of 150mm side-length cubes was evaluated. Non-destructive testing (NDT) was carried out using ultrasonic pulse velocity (UPV) and impact rebound hammer (IRH) techniques to establish a correlation with the compressive strengths of compression tests. To adapt the Schmidt hammer apparatus and the ultrasonic pulse velocity tester to the type of concrete used in Algeria, concrete mix proportions that are recommended by the Algerian code were chosen. The resulting correlation curve for each test is obtained by changing the level of compaction, water/cement ratio and concrete age of specimens. Unlike other works, the research highlights the significant effect of formwork material on surface hardness of concrete where two different mould materials for specimens were used (plastic and wood). A combined method for the above two tests, reveals an improvement in the strength estimation of concrete. The latter shows more improvement by including the concrete density. The resulting calibration curves for strength estimation were compared with others from previous published literature.

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