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Ballistic Impact Resistance of UHPC Plates Made with Hybrid Fibers and Low Binder Content

Author

Listed:
  • Paulo Rodrigo Dapper

    (Polytechnical School, UNISINOS University, São Leopoldo 93040-230, Brazil)

  • Hinoel Zamis Ehrendring

    (Polytechnical School, UNISINOS University, São Leopoldo 93040-230, Brazil)

  • Fernanda Pacheco

    (Polytechnical School, UNISINOS University, São Leopoldo 93040-230, Brazil)

  • Roberto Christ

    (Polytechnical School, UNISINOS University, São Leopoldo 93040-230, Brazil
    Department of Civil and Environmental, Universidad de la Costa, Calle 58 #55-66, Barranquilla 080002, Colombia)

  • Giovanna Costella Menegussi

    (Polytechnical School, UNISINOS University, São Leopoldo 93040-230, Brazil)

  • Maria Fernanda de Oliveira

    (Polytechnical School, UNISINOS University, São Leopoldo 93040-230, Brazil)

  • Bernardo Fonseca Tutikian

    (Polytechnical School, UNISINOS University, São Leopoldo 93040-230, Brazil)

Abstract

This study assesses the ballistic impact strength of thin plates made of ultra-high-performance concrete (UHPC) with low cement content (250 kg/m 3 ) and volumes of 80% steel and 20% polypropylene (PP) hybrid fibers. The plates were prepared with thicknesses of 30, 50, and 70 mm and fiber volume ratios of 1.5% and 3.0%. Compressive strength, flexural tensile strength, residual strength, and ballistic impact strength were determined using experimental methods. Test results showed that regardless of fiber content, the UHPC specimens prepared with the hybrid fibers showed similar performance against ballistic impact, exerting relatively low impact energy below 1000 J. The UHPC3.0 mixture made with 3.0% hybrid fiber content exhibited the best performance in terms of energy absorption and spalling resistance at impact energy levels greater than 4000 J. Plate sections with thicknesses of 7 mm showed class III performance (highest level), as recommended for military-based applications.

Suggested Citation

  • Paulo Rodrigo Dapper & Hinoel Zamis Ehrendring & Fernanda Pacheco & Roberto Christ & Giovanna Costella Menegussi & Maria Fernanda de Oliveira & Bernardo Fonseca Tutikian, 2021. "Ballistic Impact Resistance of UHPC Plates Made with Hybrid Fibers and Low Binder Content," Sustainability, MDPI, vol. 13(23), pages 1-15, December.
    • Handle: RePEc:gam:jsusta:v:13:y:2021:i:23:p:13410-:d:694478
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    Cited by:

    1. Luis F. O. Silva & Hongya Niu, 2022. "Editorial: Nano- and Micro-Contaminants and Their Effect on the Humans and Environment," Sustainability, MDPI, vol. 14(10), pages 1-5, May.

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