A Study of the Flexural Behavior of Fiber-Reinforced Concretes Exposed to Moderate Temperatures
comunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
comunitat-uji-handle4:
INVESTIGACIONMetadades
Títol
A Study of the Flexural Behavior of Fiber-Reinforced Concretes Exposed to Moderate TemperaturesData de publicació
2021-06-24Editor
Multidisciplinary Digital Publishing InstituteISSN
1996-1944Cita bibliogràfica
Caballero-Jorna, M.; Roig-Flores, M.; Serna, P. A Study of the Flexural Behavior of Fiber-Reinforced Concretes Exposed to Moderate Temperatures. Materials 2021, 14, 3522. https://doi.org/10.3390/ma14133522Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
https://www.mdpi.com/1996-1944/14/13/3522#citeVersió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
The use of synthetic fibers in fiber-reinforced concretes (FRCs) is often avoided due to the
mistrust of lower performance at changing temperatures. This work examines the effect of moderate
temperatures on the ... [+]
The use of synthetic fibers in fiber-reinforced concretes (FRCs) is often avoided due to the
mistrust of lower performance at changing temperatures. This work examines the effect of moderate
temperatures on the flexural strengths of FRCs. Two types of polypropylene fibers were tested, and
one steel fiber was employed as a reference. Three-point bending tests were carried out following
an adapted methodology based on the standard EN 14651. This adapted procedure included an
insulation system that allowed the assessment of FRC flexural behavior after being exposed for two
months at temperatures of 5, 20, 35 and 50 C. In addition, the interaction of temperature with a
pre-cracked state was also analyzed. To do this, several specimens were pre-cracked to 0.5 mm after
28 days and conditioned in their respective temperature until testing. The findings suggest that this
range of moderate temperatures did not degrade the behavior of FRCs to a great extent since the
analysis of variances showed that temperature is not always a significant factor; however, it did have
an influence on the pre-cracked specimens at 35 and 50 C. [-]
Publicat a
Materials, 14 (2021)Entitat finançadora
Ministerio de Ciencia, Innovación y Universidades de España.
Codi del projecte o subvenció
FPU18/06145
Drets d'accés
info:eu-repo/semantics/openAccess
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