Show simple item record 2019-09-10T12:54:10Z 2019-09-10T12:54:10Z
dc.title Long-term behavior of cracked fiber reinforced concrete under service conditions en
dc.type Artículo es
dcterms.abstract This paper presents an experimental study on creep behavior of cracked Fiber Reinforced Concrete (FRC). To this end, a conventional strength concrete incorporating hooked-end steel fibers was used. In order to represent service conditions, specimens under low sustained loads with small pre-cracking damage (lower than 0.5 mm) were tested and analyzed. Taking as a reference the residual stress fR,1 determined according to EN 14651:2007, different stress levels for the creep tests were applied: 25%, 35% and 45% of fR,1. For the pre-cracking damage, several initial crack openings were considered: 0.05, 0.1, 0.2, 0.3 and 0.5 mm. The specimens were tested under a four-point bending scheme for 180 days in controlled environmental conditions. The Crack Opening Rate (COR) was used as parameter to characterize the creep behavior of cracked FRC. After the creep tests, conventional flexural tests were carried out to evaluate the residual capacity and to survey the fiber density of each specimen. Both the stress level and the initial crack opening factors affected significantly the creep behavior. In all cases, the measured increases in crack openings resulted compatible with service conditions, and no negative effects on the residual post-creep behavior were observed. An expression to predict Crack Opening Rate values is proposed. en
dcterms.extent 649–658 es
dcterms.issued 2019
dcterms.language Inglés es
dcterms.license Attribution-NonCommercial-ShareAlike 4.0 International (BY-NC-SA 4.0) es
dcterms.publisher Elsevier es
dcterms.subject Creep en
dcterms.subject Fiber-reinforced concrete en
dcterms.subject Steel fiber en
dcterms.subject Bending en
dcterms.subject Crack opening en
cic.version info:eu-repo/semantics/submittedVersion es Monetti, D.H. es Llano-Torre, A. es Torrijos, María Celeste es Giaccio, Graciela Marta es Zerbino, Raúl es Martí-Vargas, J.R. es Serna, P. es
cic.lugarDesarrollo Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica es
dcterms.subject.materia Ingenierías y Tecnologías es
dcterms.identifier.url Recurso Completo es
dcterms.isPartOf.issue vol. 196 es
dcterms.isPartOf.series Construction and Building Materials es
cic.isPeerReviewed true es
cic.isFulltext true es
cic.institucionOrigen Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica es


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