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dc.creatorRíos Jiménez, José Davides
dc.creatorLeiva Fernández, Carloses
dc.creatorAriza Moreno, María del Pilares
dc.creatorSeitl, Stanislaves
dc.creatorCifuentes-Bulté, Héctores
dc.identifier.citationRíos, J.D., Leiva, C., Ariza Moreno, M. P., Seitl, S. y Cifuentes-Bulté, H. (2019). Analysis of the tensile fracture properties of ultra-high-strength fiber-reinforced concrete with different types of steel fibers by X-ray tomography. Materials and Design, 165, Article number 107582.
dc.description.abstractThis study is concerned with the analysis of the tensile properties of an ultra-high-strength fiber-reinforced concrete manufactured with short and long steel fibers. The analysis involve using different techniques - from mechanical tests to X-ray computed tomography - to relate the observed variation of the mechanical properties of the mixes with their porosity. A comprehensive study of the porosity distribution was conducted on the basis of the analysis of X-ray computed tomography images and porosimetry. The study shows the influence of the type of fiber used in the reinforcement on the pore size and distribution of the concrete matrix and consequently on its tensile properties. The tensile properties are obtained with an inverse analysis method available in the literature that yielded the first-cracking tensile strength (f t ) and the ultimate tensile strength (f tu ) and related with the inner structure of the concrete matrix. Our results prove that the tensile properties, especially the first-cracking strength, vary depending on the fibers used. These findings help mix designers make a decision about the type of fibers that should be used when a high first-cracking tensile strength is needed and make it possible to quantify the effect of the
dc.description.sponsorshipMinisterio de Economía y competitividad BIA2016-75431-Res
dc.description.sponsorshipMinisterio de Economía y Competitividad DPI2015-66534-Res
dc.description.sponsorshipAcademia de Ciencias de la República Checa 16-18702Ses
dc.publisherElsevier Ltdes
dc.relation.ispartofMaterials and Design, 165, Article number 107582.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.subjectUltra-high-strength concretees
dc.subjectX-ray computed tomographyes
dc.subjectSteel fiberses
dc.subjectConcrete matrixes
dc.subjectTensile behaviores
dc.subjectFracture behaviores
dc.titleAnalysis of the tensile fracture properties of ultra-high-strength fiber-reinforced concrete with different types of steel fibers by X-ray tomographyes
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Mecánica de Medios Continuos y Teoría de Estructurases
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Ingeniería Química y Ambientales
dc.contributor.groupUniversidad de Sevilla. TEP972: Mecánica de Materiales y Estructurases
dc.journaltitleMaterials and Designes
dc.publication.initialPageArticle number 107582es

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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as: Attribution-NonCommercial-NoDerivatives 4.0 Internacional