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Fatigue of cracked high performance fiber reinforced concrete subjected to bending

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journal contribution
posted on 03.07.2019, 08:03 by Debora M. Carlesso, Albert De la Fuente, Sergio Pialarissi-CavalaroSergio Pialarissi-Cavalaro
High performance fiber reinforced concrete (HPFRC) is recognized as suitable material for structural applications. The number of national codes that have approved it is an evidence. Structures where HPFRC is generally used can be subjected to fatigue loads and are expected to resist millions of cycles during their service life. Cyclic loads affect significantly the characteristics of materials and can cause fatigue failures. The most demanded cross-sections being cracked under tensile stresses due to direct loads or imposed deformations. Commonly, publications report fatigue behavior of concrete under compression and are valid for uncracked sections. Imprecision in fatigue prescriptions are reflected through formulation of models that contemplate a probabilistic approach, or introduction of high safety coefficients within construction codes. The aim of the present research is to perform a structural design oriented analysis on the behavior of pre-cracked HPFRC subjected to flexural fatigue loads. Seven load levels were applied by means of three-point bending tests, considering an initial crack width accepted in the service limit state. Results showed that the monotonic load-crack opening displacement curve might be used as deformation failure criterion for HPFRC under flexural fatigue loading. The conducted probabilistic approach allows predicting the fatigue strength of HPFRC cracked sections.


Brazilian National Council for Scientific and Technological Development for the scholarship granted (233980/2014-8). SAES project (BIA2016-78742-C2-1-R) of Spanish Ministerio de Economía, Industria y Competitividad.



  • Architecture, Building and Civil Engineering

Published in

Construction and Building Materials




444 - 455


CARLESSO, D.M., DE LA FUENTE, A. and CAVALARO, S.H., 2019. Fatigue of cracked high performance fiber reinforced concrete subjected to bending. Construction and Building Materials, 220, pp.444-455.


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