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The effect of aggregate size on the use of the cylinder splitting test as a measure of tensile strength

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Abstract

In the design of concrete mixes for tensile strength it is often assumed that the cylinder splitting strength is a constant proportion of the direct tensile strength and is therefore an acceptable alternative.

It is shown herein that aggregate size can have an important effect on the split cylinder/direct tensile strength ratio which, for the range of mixes examined varies between 0.95 and 1.28 for 102 mm diameter cylinders.

It is suggested that this is caused by the complex compressive stress system immediately beneath the packers and experimental work to test this hypothesis is described.

Résumé

Lorsuq'on dose le béton pour une certaine résistance à la traction, on admet souvent que la résistance au fendage sur cylindre est en rapport constant avec la résistance en traction directe et que, par conséquent, elle constitue une alternative acceptable.

On montre ici que la dimension des granulats peut avoir un effet important sur les rapport résistance au fendage sur cylindre/résistance en traction directe qui, pour les mélanges étudiés, varie de0,95 à1,28 pour des cylindres de102 mm de diamètre.

On suggère que la cause peut en être le système complexe de contrainte en compression qui se situe immédiatement sous les bandes d'interposition; on décrit l'étude expérimentale entreprise pour vérifier cette hypothèse.

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Authors and Affiliations

  1. University of Surrey, Surrey, UK

    D. J. Hannant B.Sc., Ph.D., C.Eng., M.I.C.E. (Lecturer in Concrete Technology), K. J. Buckley B.Sc. & J. Croft B.Sc. (Engineer with Balfour Beatty)

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  1. D. J. Hannant B.Sc., Ph.D., C.Eng., M.I.C.E.
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  2. K. J. Buckley B.Sc.
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  3. J. Croft B.Sc.
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Hannant, D.J., Buckley, K.J. & Croft, J. The effect of aggregate size on the use of the cylinder splitting test as a measure of tensile strength. Mat. Constr. 6, 15–21 (1973). https://doi.org/10.1007/BF02474838

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  • DOI: https://doi.org/10.1007/BF02474838

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