Assessment of Concrete Compressive Strength by Destructive Testing: Influence of Strength Correction Factors and Size Effect

Abstract:

This paper highlights the importance of strength correction factors for a correct assessment of concrete compressive strength as a destructive test is performed. Full-scale reinforced concrete columns were prepared and the experiment consists of the extraction of cores (core diameter of 64 mm, 79 mm, and 103 mm) to carry out destructive test. The results show that the assessment of the compressive strength of concrete depends strongly on the aspect ratio and the diameter. Furthermore, the comparison between the core compressive strengths of samples with an aspect ratio of one and two could be considered as non-conventional. In addition, a likely presence of a size effect contributes to complicate the assessment of the actual compressive strength of concrete. A need of codes unification account for correction factors to interpret the equivalent compressive strength of concrete has been discussed.

• Periodical: Advances in Science and Technology (Volume 159)
• Pages: 13-18
• DOI: https://doi.org/10.4028/p-96LXin
• Online since: January 2025
• Authors: Adel Benidir*
• Keywords: Compressive Strength, Hardened Concrete, Size Effect, Strength Correction Factors

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