Effect of Fiber Orientation on the Fatigue Behavior of Steel Fiber-Reinforced Concrete Specimens by Performing Wedge Splitting Tests and Computed Tomography Scanning
Abstract This paper shows the relationship, in steel fiber-reinforced concrete, between fiber orientation and fatigue response through the combined use of computed tomography (CT), digital image processing (DIP) software and wedge splitting test (WST). The WST cubes were extracted from conventional...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-01-01
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| Series: | International Journal of Concrete Structures and Materials |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40069-023-00639-8 |
| _version_ | 1797355951771090944 |
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| author | Dorys C. González Álvaro Mena-Alonso Jesús Mínguez José A. Martínez Miguel A. Vicente |
| author_facet | Dorys C. González Álvaro Mena-Alonso Jesús Mínguez José A. Martínez Miguel A. Vicente |
| author_sort | Dorys C. González |
| collection | DOAJ |
| description | Abstract This paper shows the relationship, in steel fiber-reinforced concrete, between fiber orientation and fatigue response through the combined use of computed tomography (CT), digital image processing (DIP) software and wedge splitting test (WST). The WST cubes were extracted from conventional 150 × 150× 600 concrete prisms and a groove and notch were carved on different faces in such a way that in half of the test specimens the fibers are oriented mostly perpendicular to the breaking surface and, in the other half, the fibers are mostly oriented parallel to the breaking surface. Fiber orientation was obtained using a CT device and DIP software from a miniprism extracted from the previously mentioned concrete prisms. The results show that there is a strong correlation between the crack-sewing fiber orientation on the one hand and fatigue life and crack opening rate per cycle on the other hand. Cubes with a higher percentage of fibers perpendicular to the crack surface (i.e., with a higher efficiency index) show a longer fatigue life and a lower crack opening rate per cycle, while cubes with a lower efficiency index show a shorter fatigue life and a higher crack opening rate per cycle. |
| first_indexed | 2024-03-08T14:18:35Z |
| format | Article |
| id | doaj.art-da2c4f4904974ffd84baf51fe1cf9371 |
| institution | Directory Open Access Journal |
| issn | 2234-1315 |
| language | English |
| last_indexed | 2024-03-08T14:18:35Z |
| publishDate | 2024-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | International Journal of Concrete Structures and Materials |
| spelling | doaj.art-da2c4f4904974ffd84baf51fe1cf93712024-01-14T12:16:10ZengSpringerOpenInternational Journal of Concrete Structures and Materials2234-13152024-01-0118111910.1186/s40069-023-00639-8Effect of Fiber Orientation on the Fatigue Behavior of Steel Fiber-Reinforced Concrete Specimens by Performing Wedge Splitting Tests and Computed Tomography ScanningDorys C. González0Álvaro Mena-Alonso1Jesús Mínguez2José A. Martínez3Miguel A. Vicente4E. Politécnica Superior, Universidad de BurgosE. Politécnica Superior, Universidad de BurgosE. Politécnica Superior, Universidad de BurgosE. Politécnica Superior, Universidad de BurgosE. Politécnica Superior, Universidad de BurgosAbstract This paper shows the relationship, in steel fiber-reinforced concrete, between fiber orientation and fatigue response through the combined use of computed tomography (CT), digital image processing (DIP) software and wedge splitting test (WST). The WST cubes were extracted from conventional 150 × 150× 600 concrete prisms and a groove and notch were carved on different faces in such a way that in half of the test specimens the fibers are oriented mostly perpendicular to the breaking surface and, in the other half, the fibers are mostly oriented parallel to the breaking surface. Fiber orientation was obtained using a CT device and DIP software from a miniprism extracted from the previously mentioned concrete prisms. The results show that there is a strong correlation between the crack-sewing fiber orientation on the one hand and fatigue life and crack opening rate per cycle on the other hand. Cubes with a higher percentage of fibers perpendicular to the crack surface (i.e., with a higher efficiency index) show a longer fatigue life and a lower crack opening rate per cycle, while cubes with a lower efficiency index show a shorter fatigue life and a higher crack opening rate per cycle.https://doi.org/10.1186/s40069-023-00639-8Fiber-reinforced concreteCT-scan technologyCrack patternsWedge splitting testFatigue creep curve |
| spellingShingle | Dorys C. González Álvaro Mena-Alonso Jesús Mínguez José A. Martínez Miguel A. Vicente Effect of Fiber Orientation on the Fatigue Behavior of Steel Fiber-Reinforced Concrete Specimens by Performing Wedge Splitting Tests and Computed Tomography Scanning International Journal of Concrete Structures and Materials Fiber-reinforced concrete CT-scan technology Crack patterns Wedge splitting test Fatigue creep curve |
| title | Effect of Fiber Orientation on the Fatigue Behavior of Steel Fiber-Reinforced Concrete Specimens by Performing Wedge Splitting Tests and Computed Tomography Scanning |
| title_full | Effect of Fiber Orientation on the Fatigue Behavior of Steel Fiber-Reinforced Concrete Specimens by Performing Wedge Splitting Tests and Computed Tomography Scanning |
| title_fullStr | Effect of Fiber Orientation on the Fatigue Behavior of Steel Fiber-Reinforced Concrete Specimens by Performing Wedge Splitting Tests and Computed Tomography Scanning |
| title_full_unstemmed | Effect of Fiber Orientation on the Fatigue Behavior of Steel Fiber-Reinforced Concrete Specimens by Performing Wedge Splitting Tests and Computed Tomography Scanning |
| title_short | Effect of Fiber Orientation on the Fatigue Behavior of Steel Fiber-Reinforced Concrete Specimens by Performing Wedge Splitting Tests and Computed Tomography Scanning |
| title_sort | effect of fiber orientation on the fatigue behavior of steel fiber reinforced concrete specimens by performing wedge splitting tests and computed tomography scanning |
| topic | Fiber-reinforced concrete CT-scan technology Crack patterns Wedge splitting test Fatigue creep curve |
| url | https://doi.org/10.1186/s40069-023-00639-8 |
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