A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effect of Fiber Distribution on the Flexural Fatigue Behavior of HPFRC Depending on Specimen Size and Fiber Content
https://orcid.org/http://orcid.org/0000-0002-4269-5299
https://orcid.org/http://orcid.org/0000-0002-9425-6087
https://orcid.org/http://orcid.org/0000-0003-0569-5131
https://orcid.org/http://orcid.org/0000-0001-8740-120X
The fatigue response of high-performance fiber-reinforced concrete (HPFRC) varies with fiber content and specimen size. Due to the heterogeneous nature of concrete, it is possible that these different behaviors can be explained by variations in fiber distribution. Therefore, in this work the correlation between fiber orientation and the flexural fatigue strength of HPFRC is studied, considering different fiber volumes (0.3%, 0.6% and 1%) and specimen sizes (75 × 75 × 300 and 150 × 150 × 600 mm). To analyze the fibers, the specimens were scanned with micro-computed tomography (microCT). The results show a clear correlation between the fiber orientation index and fatigue life, such that the more orthogonal the fibers are to the failure plane, the longer the fatigue life. Moreover, it is observed that this relationship is independent of fiber content, although it changes with specimen size.
Effect of Fiber Distribution on the Flexural Fatigue Behavior of HPFRC Depending on Specimen Size and Fiber Content
https://orcid.org/http://orcid.org/0000-0002-4269-5299
https://orcid.org/http://orcid.org/0000-0002-9425-6087
https://orcid.org/http://orcid.org/0000-0003-0569-5131
https://orcid.org/http://orcid.org/0000-0001-8740-120X
The fatigue response of high-performance fiber-reinforced concrete (HPFRC) varies with fiber content and specimen size. Due to the heterogeneous nature of concrete, it is possible that these different behaviors can be explained by variations in fiber distribution. Therefore, in this work the correlation between fiber orientation and the flexural fatigue strength of HPFRC is studied, considering different fiber volumes (0.3%, 0.6% and 1%) and specimen sizes (75 × 75 × 300 and 150 × 150 × 600 mm). To analyze the fibers, the specimens were scanned with micro-computed tomography (microCT). The results show a clear correlation between the fiber orientation index and fatigue life, such that the more orthogonal the fibers are to the failure plane, the longer the fatigue life. Moreover, it is observed that this relationship is independent of fiber content, although it changes with specimen size.
Effect of Fiber Distribution on the Flexural Fatigue Behavior of HPFRC Depending on Specimen Size and Fiber Content
https://orcid.org/http://orcid.org/0000-0002-4269-5299
https://orcid.org/http://orcid.org/0000-0002-9425-6087
https://orcid.org/http://orcid.org/0000-0003-0569-5131
https://orcid.org/http://orcid.org/0000-0001-8740-120X
The fatigue response of high-performance fiber-reinforced concrete (HPFRC) varies with fiber content and specimen size. Due to the heterogeneous nature of concrete, it is possible that these different behaviors can be explained by variations in fiber distribution. Therefore, in this work the correlation between fiber orientation and the flexural fatigue strength of HPFRC is studied, considering different fiber volumes (0.3%, 0.6% and 1%) and specimen sizes (75 × 75 × 300 and 150 × 150 × 600 mm). To analyze the fibers, the specimens were scanned with micro-computed tomography (microCT). The results show a clear correlation between the fiber orientation index and fatigue life, such that the more orthogonal the fibers are to the failure plane, the longer the fatigue life. Moreover, it is observed that this relationship is independent of fiber content, although it changes with specimen size.
Effect of Fiber Distribution on the Flexural Fatigue Behavior of HPFRC Depending on Specimen Size and Fiber Content
RILEM Bookseries
Mechtcherine, Viktor (editor) / Signorini, Cesare (editor) / Junger, Dominik (editor) / Mena-Alonso, Álvaro (author) / Vicente, Miguel A. (author) / Mínguez, Jesús (author) / González, Dorys C. (author)
RILEM-fib International Symposium on Fibre Reinforced Concrete ; 2024 ; Dresden, Germany
Transforming Construction: Advances in Fiber Reinforced Concrete ; Chapter: 48 ; 390-397
RILEM Bookseries ; 54
2024-09-12
8 pages
Article/Chapter (Book)
Electronic Resource
English
| Elsevier | 2025
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