Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bending Load-Bearing Behaviour of Concrete Components Reinforced with Impregnated Flax Fibre Textiles
https://orcid.org/http://orcid.org/0000-0001-9763-3450
https://orcid.org/http://orcid.org/0000-0003-4109-5133
https://orcid.org/http://orcid.org/0000-0002-7040-8971
https://orcid.org/http://orcid.org/0000-0001-5486-5884
Natural fibres – as flax fibres – are green, economical, and present satisfactory mechanical properties to be used as reinforcement in concrete members. The full sustainability benefits only apply to impregnated fibres when using bio-based or biodegradable resins. Despite the numerous studies on the load-bearing behaviour of concrete members reinforced with textiles (especially, made of synthetic fibres), the design of textiles made of natural fibres – and particularly, flax fibres – still lack robust load-bearing models or design guidelines or provisions. Thus, based on experimental investigations, the bending load-bearing behaviour of concrete components reinforced with impregnated flax fibre textiles are investigated in this paper. To this, a total of 32 tests on multi-layered reinforced (impregnated gauze weave) members were produced and tested in four-point-bending tests while varying specific textile parameters, such as the fineness and spacings of the weft threads or the number of textile layers. The results showed that an increase of the failure load was achieved compared to test specimens without, or even with less, reinforcement. The stress-strain-diagrams could be divided into three areas – State I, State IIa and State IIb – also found in previous tensile tests. The ultimate stresses attained in these tests are comparable to the stresses reached by conventional reinforcements, as reinforcing steel. Also, a finely distributed crack pattern with multiple cracks was observed. These results seem to support the potential of flax fibre textiles as a reinforcement for concrete members bearing uniaxial bending loads and provides means for the development new design models or provisions.
Bending Load-Bearing Behaviour of Concrete Components Reinforced with Impregnated Flax Fibre Textiles
https://orcid.org/http://orcid.org/0000-0001-9763-3450
https://orcid.org/http://orcid.org/0000-0003-4109-5133
https://orcid.org/http://orcid.org/0000-0002-7040-8971
https://orcid.org/http://orcid.org/0000-0001-5486-5884
Natural fibres – as flax fibres – are green, economical, and present satisfactory mechanical properties to be used as reinforcement in concrete members. The full sustainability benefits only apply to impregnated fibres when using bio-based or biodegradable resins. Despite the numerous studies on the load-bearing behaviour of concrete members reinforced with textiles (especially, made of synthetic fibres), the design of textiles made of natural fibres – and particularly, flax fibres – still lack robust load-bearing models or design guidelines or provisions. Thus, based on experimental investigations, the bending load-bearing behaviour of concrete components reinforced with impregnated flax fibre textiles are investigated in this paper. To this, a total of 32 tests on multi-layered reinforced (impregnated gauze weave) members were produced and tested in four-point-bending tests while varying specific textile parameters, such as the fineness and spacings of the weft threads or the number of textile layers. The results showed that an increase of the failure load was achieved compared to test specimens without, or even with less, reinforcement. The stress-strain-diagrams could be divided into three areas – State I, State IIa and State IIb – also found in previous tensile tests. The ultimate stresses attained in these tests are comparable to the stresses reached by conventional reinforcements, as reinforcing steel. Also, a finely distributed crack pattern with multiple cracks was observed. These results seem to support the potential of flax fibre textiles as a reinforcement for concrete members bearing uniaxial bending loads and provides means for the development new design models or provisions.
Bending Load-Bearing Behaviour of Concrete Components Reinforced with Impregnated Flax Fibre Textiles
https://orcid.org/http://orcid.org/0000-0001-9763-3450
https://orcid.org/http://orcid.org/0000-0003-4109-5133
https://orcid.org/http://orcid.org/0000-0002-7040-8971
https://orcid.org/http://orcid.org/0000-0001-5486-5884
Natural fibres – as flax fibres – are green, economical, and present satisfactory mechanical properties to be used as reinforcement in concrete members. The full sustainability benefits only apply to impregnated fibres when using bio-based or biodegradable resins. Despite the numerous studies on the load-bearing behaviour of concrete members reinforced with textiles (especially, made of synthetic fibres), the design of textiles made of natural fibres – and particularly, flax fibres – still lack robust load-bearing models or design guidelines or provisions. Thus, based on experimental investigations, the bending load-bearing behaviour of concrete components reinforced with impregnated flax fibre textiles are investigated in this paper. To this, a total of 32 tests on multi-layered reinforced (impregnated gauze weave) members were produced and tested in four-point-bending tests while varying specific textile parameters, such as the fineness and spacings of the weft threads or the number of textile layers. The results showed that an increase of the failure load was achieved compared to test specimens without, or even with less, reinforcement. The stress-strain-diagrams could be divided into three areas – State I, State IIa and State IIb – also found in previous tensile tests. The ultimate stresses attained in these tests are comparable to the stresses reached by conventional reinforcements, as reinforcing steel. Also, a finely distributed crack pattern with multiple cracks was observed. These results seem to support the potential of flax fibre textiles as a reinforcement for concrete members bearing uniaxial bending loads and provides means for the development new design models or provisions.
Bending Load-Bearing Behaviour of Concrete Components Reinforced with Impregnated Flax Fibre Textiles
Lecture Notes in Civil Engineering
Ilki, Alper (Herausgeber:in) / Çavunt, Derya (Herausgeber:in) / Çavunt, Yavuz Selim (Herausgeber:in) / Zecherle, Katrin (Autor:in) / Ricker, Marcus (Autor:in) / Feiri, Tânia (Autor:in) / Binde, Jan (Autor:in)
International Symposium of the International Federation for Structural Concrete ; 2023 ; Istanbul, Türkiye
01.06.2023
12 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Load-bearing behaviour of polymer-impregnated textiles in concrete
| British Library Conference Proceedings | 2007
Epoxy-impregnated textiles in concrete - load bearing capacity and durability
| Tema Archiv | 2006
Epoxy-impregnated textiles in concrete - Load bearing capacity and durability
| British Library Conference Proceedings | 2006
Flexural Toughness of Flax Fibre Reinforced Concrete
| British Library Conference Proceedings | 2001
Compressive behaviour of flax FRP double tube confined coconut fibre reinforced concrete
| Online Contents | 2016