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Optimization of a Hybrid-Fiber-Reinforced High-Strength Concrete

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Mechanics of Composite Materials Aims and scope

The fracture performance of a high-strength concrete reinforced with steel fibers was studied. Tests of notched beams subjected to fracture in the three-point bend configuration were conducted in accordance with RILEM recommendations TC 162-TDF. The R-curve concepts based on load–CMOD responses and the RILEM criteria were used for the performance evaluation of concrete beams reinforced with steel fiber mixtures and loaded up to fracture. Steel fibers of different types (regular and microfibers), in different proportions were employed as the reinforcement. The hybrid-fiber-reinforced concrete demonstrated a superior performance regarding their resistance and toughness properties as a result of interaction between the fibers.

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Acknowledgments

The authors express their gratitude to FAPESP, Fundação de Amparo à Pesquisa do Estado de São Paulo, for the continued support received for the development of their research, and, in particular, for the investigation of cementitious composites reinforced with hybrid steel fibers.

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Authors and Affiliations

  1. University Center of the Associate Faculties-UNIFAE, São João da B. Vista, SP, Brazil

    L. E. T. Ferreira

  2. School of Engineering of São Carlos, University of São Paulo, São Carlos, SP, Brazil

    J. B. de Hanai

  3. State University of Maringá, Maringá, PR, Brazil

    V. J. Ferrari

Authors
  1. L. E. T. Ferreira
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  2. J. B. de Hanai
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  3. V. J. Ferrari
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Corresponding author

Correspondence to L. E. T. Ferreira.

Additional information

Russian translation published in Mekhanika Kompozitnykh Materialov, Vol. 52, No. 3, pp. 423-436 , May-June, 2016.

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Ferreira, L.E.T., de Hanai, J.B. & Ferrari, V.J. Optimization of a Hybrid-Fiber-Reinforced High-Strength Concrete. Mech Compos Mater 52, 295–304 (2016). https://doi.org/10.1007/s11029-016-9582-3

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  • DOI: https://doi.org/10.1007/s11029-016-9582-3

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