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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/6200

    Título
    Fiber-reinforcement and its effects on the mechanical properties of high-workability concretes manufactured with slag as aggregate and binder
    Autor
    Ortega López, VanesaAutoridad UBU Orcid
    García Llona, Aratz
    Revilla Cuesta, VíctorAutoridad UBU Orcid
    Santamaría, Amaia
    San José Lombera, José Tomás
    Publicado en
    Journal of Building Engineering. 2021, V. 43, 102548
    Editorial
    Elsevier
    Fecha de publicación
    2021-11
    ISSN
    2352-7102
    DOI
    10.1016/j.jobe.2021.102548
    Resumen
    The feasibility of manufacturing fiber-reinforced concretes of high workability through additions of high volumes of electric arc furnace steel slag is evaluated in this paper, using sustainable binders with ground granulated blast furnace slag and ladle furnace slag as a supplementary cementitious material. An extensive experimental plan is developed to test four (self-compacting and pumpable) concrete mixtures, some reinforced with 0.5% vol. of (metallic or synthetic) fibers, in both the fresh and the hardened state. Very specific mechanical aspects are examined, such as the evaluation of both longitudinal and transversal stress-strain compressive behavior, and the assessment of direct tensile strength through the “dog-bone” test. The results of testing this sustainable concrete design yielded suitable mechanical strengths, and good toughness, ductility and impact strength, among other properties. Good adhesion between the fibers and the cementitious matrix was also evident from the fiber pull-out test results. Finally, the overall results confirmed that the use of electric arc furnace steel slag can make a real contribution to construction-sector sustainability and that the mechanical behavior of these novel concretes meets the basic design requirements for use in real structures.
    Palabras clave
    Slag Aggregate and binder
    Fiber-reinforced high-workability concrete
    Fracture toughness
    Dog-bone test
    Stress-strain behavior
    Materia
    Ingeniería civil
    Civil engineering
    Materiales de construcción
    Building materials
    Ensayos (Tecnología)
    Testing
    URI
    http://hdl.handle.net/10259/6200
    Versión del editor
    https://doi.org/10.1016/j.jobe.2021.102548
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    Attribution-NonCommercial-NoDerivatives 4.0 Internacional
    Documento(s) sujeto(s) a una licencia Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 Internacional
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    Ortega-jbe_2021.pdf
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