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Correlations in the behaviour of fibre reinforced shotcrete beam and panel specimens

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Abstract

Satisfactory structural performance of Fibre Reinforced Shotcrete (FRS) in applications such as tunnel linings is dependent on an ability to support load after cracking. At present, both beam and panel specimens are used to measure the post-crack flexural capacity of this material. Although these tests have been widely used to develop improved fibres and FRS mix designs, the relationship between performance data produced in beam and panel tests is unclear. This investigation was therefore undertaken to examine possible correlations in behaviour between beam and panel specimens and determine which was the most appropriate type of test for a given FRS application.

Résumé

La performance structurale du béton projeté renforcé de fibres (BPRF) pour des utilisations telles que le support et le renforcement de tunnels dépend de l'aptitude du matériau à supporter les charges après fissuration. À l'heure actuelle, des échantillons de poutre ou de petites dalles sont utilisées pour mesurer la résistance en flexion après fissuration du BPRF. Même si de nombreux essais ont été réalisés pour développer de meilleures fibres et améliorer la composition des mélanges de BPRF, la correspondance entre les résultats obtenus par l'essai sur poutre et ceux sur dalle est ambiguë. La présent étude a donc été réalisée afin d'examiner les relations possibles entre les résultats des essais sur dalle et ceux sur poutre pour déterminer la configuration d'essai la plus appropriée pour une utilisation donnée de BPRF.

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  1. School of Engineering and Industrial Design, University of Western Sydney, Australia

    E. S. Bernard

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  1. E. S. Bernard
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Bernard, E.S. Correlations in the behaviour of fibre reinforced shotcrete beam and panel specimens. Mat. Struct. 35, 156–164 (2002). https://doi.org/10.1007/BF02533584

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  • DOI: https://doi.org/10.1007/BF02533584

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