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Influence of Textile Orientation on the Quasi-static and Repeated Loading Behavior of Textile Reinforced Cementitious (TRC) Composites
https://orcid.org/http://orcid.org/0000-0003-1353-6739
https://orcid.org/http://orcid.org/0000-0002-8473-994X
Textile Reinforced Cementitious (TRC) composites combine the compressive strength of cement and the tensile resistance of fiber reinforcements. These materials have become increasingly popular in recent years; due to their desirable properties such as high tuneability, slenderness and freedom of form they provide smart solutions for progressive building designs. Currently, a lack of research exists that tackles complex and repeated loading conditions of these promising materials. The objective of this research campaign was threefold. Firstly, the influence of the angle of unalignment between the textile reinforcement and the loading direction was investigated in quasi-static loading conditions (0°, 22.5° and 45° were considered), focusing on the TRC strength, post-cracking stiffness and crack evolution. Secondly, these parameters were investigated after repeated loading conditions. For this purpose, an experimental campaign was performed where the specimens were repeatedly loaded during N = 25 cycles between a residual stress in the pre-cracked stage and 0.5 times the failure load obtained from the quasi-static tests. Thirdly, the residual properties of the beams tested in repeated loading were characterized by means of a quasi-static test until failure.
A total of 18 (500 mm × 150 mm × 15 mm) TRC samples were tested in four-point bending (three for each test series and orientation). The samples were reinforced by means of a single textile reinforcement grid, the longitudinal fiber volume fraction (Vf) was 0.74%. From the experimental results, a clear influence of the angle of unalignment on the quasi-static and repeated loading behavior of the TRCs was observed.
Influence of Textile Orientation on the Quasi-static and Repeated Loading Behavior of Textile Reinforced Cementitious (TRC) Composites
https://orcid.org/http://orcid.org/0000-0003-1353-6739
https://orcid.org/http://orcid.org/0000-0002-8473-994X
Textile Reinforced Cementitious (TRC) composites combine the compressive strength of cement and the tensile resistance of fiber reinforcements. These materials have become increasingly popular in recent years; due to their desirable properties such as high tuneability, slenderness and freedom of form they provide smart solutions for progressive building designs. Currently, a lack of research exists that tackles complex and repeated loading conditions of these promising materials. The objective of this research campaign was threefold. Firstly, the influence of the angle of unalignment between the textile reinforcement and the loading direction was investigated in quasi-static loading conditions (0°, 22.5° and 45° were considered), focusing on the TRC strength, post-cracking stiffness and crack evolution. Secondly, these parameters were investigated after repeated loading conditions. For this purpose, an experimental campaign was performed where the specimens were repeatedly loaded during N = 25 cycles between a residual stress in the pre-cracked stage and 0.5 times the failure load obtained from the quasi-static tests. Thirdly, the residual properties of the beams tested in repeated loading were characterized by means of a quasi-static test until failure.
A total of 18 (500 mm × 150 mm × 15 mm) TRC samples were tested in four-point bending (three for each test series and orientation). The samples were reinforced by means of a single textile reinforcement grid, the longitudinal fiber volume fraction (Vf) was 0.74%. From the experimental results, a clear influence of the angle of unalignment on the quasi-static and repeated loading behavior of the TRCs was observed.
Influence of Textile Orientation on the Quasi-static and Repeated Loading Behavior of Textile Reinforced Cementitious (TRC) Composites
https://orcid.org/http://orcid.org/0000-0003-1353-6739
https://orcid.org/http://orcid.org/0000-0002-8473-994X
Textile Reinforced Cementitious (TRC) composites combine the compressive strength of cement and the tensile resistance of fiber reinforcements. These materials have become increasingly popular in recent years; due to their desirable properties such as high tuneability, slenderness and freedom of form they provide smart solutions for progressive building designs. Currently, a lack of research exists that tackles complex and repeated loading conditions of these promising materials. The objective of this research campaign was threefold. Firstly, the influence of the angle of unalignment between the textile reinforcement and the loading direction was investigated in quasi-static loading conditions (0°, 22.5° and 45° were considered), focusing on the TRC strength, post-cracking stiffness and crack evolution. Secondly, these parameters were investigated after repeated loading conditions. For this purpose, an experimental campaign was performed where the specimens were repeatedly loaded during N = 25 cycles between a residual stress in the pre-cracked stage and 0.5 times the failure load obtained from the quasi-static tests. Thirdly, the residual properties of the beams tested in repeated loading were characterized by means of a quasi-static test until failure.
A total of 18 (500 mm × 150 mm × 15 mm) TRC samples were tested in four-point bending (three for each test series and orientation). The samples were reinforced by means of a single textile reinforcement grid, the longitudinal fiber volume fraction (Vf) was 0.74%. From the experimental results, a clear influence of the angle of unalignment on the quasi-static and repeated loading behavior of the TRCs was observed.
Influence of Textile Orientation on the Quasi-static and Repeated Loading Behavior of Textile Reinforced Cementitious (TRC) Composites
RILEM Bookseries
Escalante-Garcia, J. Ivan (editor) / Castro Borges, Pedro (editor) / Duran-Herrera, Alejandro (editor) / El Kadi, M. (author) / Ahmad, M. (author) / Tysmans, T. (author)
RILEM Annual Week ; 2021 ; Merida, Mexico
Proceedings of the 75th RILEM Annual Week 2021 ; Chapter: 95 ; 897-905
RILEM Bookseries ; 40
2023-03-11
9 pages
Article/Chapter (Book)
Electronic Resource
English
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