Abstract
The increasing interest in the strain behaviour of concrete is not restricted to everyday mean compressive strengths but now extends to very high values. In this paper it is shown that the various proposals for assessing the value ε0 of the strain at the peak of the compressive strength of concrete appear sufficiently precise, at maximum, for a limited range of strengths, This had led us to estimate ε0 for a wide range of strengths, and the new formula in this paper seems to perform much better when applied to the experimental data obtained in the very wide range of strengths possible today.
Resume
L'intérêt toujours croissant pour le comportement en déformation du béton ne se limite pas aux résistances moyennes en compression normales, mais il s'étend aussi aux valeurs de pointe atteignables aujourd'hui. Dans cet article, on montre que les différentes formules proposées pour l'évaluation de la valeur ε0 de la déformation au pic de la résistance en compression du béton sont tout juste assez précises pour un éventail limité de résistances. Ceci nous a conduits à évaluer ε0 pour un large éventail et la proposition nouvelle exposée ici offre une bien meilleure concordance avec les données expérimentales obtenues dans l'éventail de résistances le plus étendu à ce jour.
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De Nicolo, B., Pani, L. & Pozzo, E. Strain of concrete at peak compressive stress for a wide range of compressive strengths. Materials and Structures 27, 206–210 (1994). https://doi.org/10.1007/BF02473034
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DOI: https://doi.org/10.1007/BF02473034