Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Thin-Walled Slab Elements Made of FRP-Reinforced HPC and UHPC: Development, Experimental Investigation and LCA
https://orcid.org/http://orcid.org/0000-0002-5715-6861
https://orcid.org/http://orcid.org/0000-0002-9052-577X
https://orcid.org/http://orcid.org/0000-0003-3416-8146
The building sector is a major contributor when considering environmental impact. Hence, the authors investigate if the use of high-performance materials enables the construction of light and thin-walled concrete structures made of fibre reinforced polymer (FRP) reinforcement and (ultra-)high performance concrete ((U)HPC) to lower the environmental impact. Within the research the disadvantageous properties, specifically the low stiffness of the filigree cross sections and low tensile strength of the FRP reinforcement, are counteracted by prestressing the carbon fibre reinforced polymer (CFRP) reinforcement. Using this method, two thin-walled slab elements with a length of 8.4 m, a width of 1 m, and a height of 0.2 m were developed. As secondary and shear reinforcement a CFRP and glass fibre reinforced polymer (GFRP) mesh were installed. Additionally, the materials used within the experiments are described, focussing on their mixture design and mechanical behaviour. The results of three-point bending tests of the two slab elements show the potential of using a GFRP mesh as secondary and shear reinforcement for the slab element instead of a CFRP mesh. In the last part of the paper a life cycle assessment (LCA) of the GWP is conducted to assess the two tested reinforcement configurations and to facilitate a possible comparison of the slab elements with conventional concrete structures. The results give a first insight into the environmental potential and the challenges when using high-performance materials for filigree structures with low concrete covers.
Thin-Walled Slab Elements Made of FRP-Reinforced HPC and UHPC: Development, Experimental Investigation and LCA
https://orcid.org/http://orcid.org/0000-0002-5715-6861
https://orcid.org/http://orcid.org/0000-0002-9052-577X
https://orcid.org/http://orcid.org/0000-0003-3416-8146
The building sector is a major contributor when considering environmental impact. Hence, the authors investigate if the use of high-performance materials enables the construction of light and thin-walled concrete structures made of fibre reinforced polymer (FRP) reinforcement and (ultra-)high performance concrete ((U)HPC) to lower the environmental impact. Within the research the disadvantageous properties, specifically the low stiffness of the filigree cross sections and low tensile strength of the FRP reinforcement, are counteracted by prestressing the carbon fibre reinforced polymer (CFRP) reinforcement. Using this method, two thin-walled slab elements with a length of 8.4 m, a width of 1 m, and a height of 0.2 m were developed. As secondary and shear reinforcement a CFRP and glass fibre reinforced polymer (GFRP) mesh were installed. Additionally, the materials used within the experiments are described, focussing on their mixture design and mechanical behaviour. The results of three-point bending tests of the two slab elements show the potential of using a GFRP mesh as secondary and shear reinforcement for the slab element instead of a CFRP mesh. In the last part of the paper a life cycle assessment (LCA) of the GWP is conducted to assess the two tested reinforcement configurations and to facilitate a possible comparison of the slab elements with conventional concrete structures. The results give a first insight into the environmental potential and the challenges when using high-performance materials for filigree structures with low concrete covers.
Thin-Walled Slab Elements Made of FRP-Reinforced HPC and UHPC: Development, Experimental Investigation and LCA
https://orcid.org/http://orcid.org/0000-0002-5715-6861
https://orcid.org/http://orcid.org/0000-0002-9052-577X
https://orcid.org/http://orcid.org/0000-0003-3416-8146
The building sector is a major contributor when considering environmental impact. Hence, the authors investigate if the use of high-performance materials enables the construction of light and thin-walled concrete structures made of fibre reinforced polymer (FRP) reinforcement and (ultra-)high performance concrete ((U)HPC) to lower the environmental impact. Within the research the disadvantageous properties, specifically the low stiffness of the filigree cross sections and low tensile strength of the FRP reinforcement, are counteracted by prestressing the carbon fibre reinforced polymer (CFRP) reinforcement. Using this method, two thin-walled slab elements with a length of 8.4 m, a width of 1 m, and a height of 0.2 m were developed. As secondary and shear reinforcement a CFRP and glass fibre reinforced polymer (GFRP) mesh were installed. Additionally, the materials used within the experiments are described, focussing on their mixture design and mechanical behaviour. The results of three-point bending tests of the two slab elements show the potential of using a GFRP mesh as secondary and shear reinforcement for the slab element instead of a CFRP mesh. In the last part of the paper a life cycle assessment (LCA) of the GWP is conducted to assess the two tested reinforcement configurations and to facilitate a possible comparison of the slab elements with conventional concrete structures. The results give a first insight into the environmental potential and the challenges when using high-performance materials for filigree structures with low concrete covers.
Thin-Walled Slab Elements Made of FRP-Reinforced HPC and UHPC: Development, Experimental Investigation and LCA
Lecture Notes in Civil Engineering
Ilki, Alper (Herausgeber:in) / Çavunt, Derya (Herausgeber:in) / Çavunt, Yavuz Selim (Herausgeber:in) / Hammerl, Mathias (Autor:in) / Reichenbach, Sara (Autor:in) / Kromoser, Benjamin (Autor:in)
International Symposium of the International Federation for Structural Concrete ; 2023 ; Istanbul, Türkiye
01.06.2023
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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