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Mechanical behaviour of self-compacting concrete with hybrid fibre reinforcement

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Abstract

In this study, fibre-reinforced self-compacting concretes were developed for precast building components, incorporating either adherent metal fibres or polymeric synthetic slipping fibres or a combination of both. To achieve the warranted workability, compressive and splitting tensile strengths, compositions were determined by preliminary tests on self-compacting materials with various proportions of metal fibres. Bending tests in controlled deflection confirmed the positive contribution of fibres in the mechanical behaviour of self-compacting concrete. The comparison between vibrated and self-compacting concretes of similar mechanical characteristics indicated a possible better fibre-matrix bond in the case of self-compacting types. The results also showed that the properties of the hybrid fibre-reinforced self-compacting concrete could be inferred from the properties of the individual single-fibre reinforcements and their respective proportions through simple mix-rules.

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Authors and Affiliations

  1. Laboratoire Matériaux et Durabilité des Constructions – Dpt Génie Civil – INSA – UPS – 135, Avenue de Rangueil, 31077, Toulouse Cedex 4, France

    G. Pons, M. Mouret & J. L. Granju

  2. Universidade Estadutal Paulista, Ilha Solteira, SP, Brasil

    M. Alcantara

Authors
  1. G. Pons
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  2. M. Mouret
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  3. M. Alcantara
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  4. J. L. Granju
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Pons, G., Mouret, M., Alcantara, M. et al. Mechanical behaviour of self-compacting concrete with hybrid fibre reinforcement. Mater Struct 40, 201–210 (2007). https://doi.org/10.1617/s11527-006-9131-y

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  • DOI: https://doi.org/10.1617/s11527-006-9131-y

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