Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Textile reinforced concrete (TRC) for integrated formworks
It is generally possible to cast elements for moulds using textile reinforced concrete. This new technology allows the usage of very light elements which remain in the structure after casting the concrete on site. A lot of advantages arise when using the integrated formwork for concrete structures. They are very light due to the small thickness of the textile reinforced concrete elements, the free surface of the elements has a high quality compared to normal concrete, and the matrix of the textile reinforced concrete is very dense leading to a high durability. Very economic is the aspect of curing. The integrated formwork remains in the structure, therefore demoulding and curing of the concrete is not necessary. Nevertheless, there remain some uncertainties that should be cleared in a research project. In the first step, an integrated formwork had been developed to understand the load-deformation behaviour when the matrix or the textiles are changed in their properties. A design model has been developed to calculate the load-carrying capacity of the formworks, which had an U-shaped cross-section. However the calculated values agree well with the experimental data except for a distinct concrete/textile combination. For this combination no bending failure has been observed but a break down of the connection between flanges and plate of the U-shaped structure. Based on this first step a new geometry has been developed. Results with the new integrated formwork are described in this contribution.
Textile reinforced concrete (TRC) for integrated formworks
It is generally possible to cast elements for moulds using textile reinforced concrete. This new technology allows the usage of very light elements which remain in the structure after casting the concrete on site. A lot of advantages arise when using the integrated formwork for concrete structures. They are very light due to the small thickness of the textile reinforced concrete elements, the free surface of the elements has a high quality compared to normal concrete, and the matrix of the textile reinforced concrete is very dense leading to a high durability. Very economic is the aspect of curing. The integrated formwork remains in the structure, therefore demoulding and curing of the concrete is not necessary. Nevertheless, there remain some uncertainties that should be cleared in a research project. In the first step, an integrated formwork had been developed to understand the load-deformation behaviour when the matrix or the textiles are changed in their properties. A design model has been developed to calculate the load-carrying capacity of the formworks, which had an U-shaped cross-section. However the calculated values agree well with the experimental data except for a distinct concrete/textile combination. For this combination no bending failure has been observed but a break down of the connection between flanges and plate of the U-shaped structure. Based on this first step a new geometry has been developed. Results with the new integrated formwork are described in this contribution.
Textile reinforced concrete (TRC) for integrated formworks
Textilverstärkter Beton für integrierte Gießformen
Brameshuber, W. (Autor:in) / Koster, M. (Autor:in) / Hegger, J. (Autor:in) / Voss, S. (Autor:in) / Gries, T. (Autor:in) / Barle, M. (Autor:in) / Reinhardt, H.W. (Autor:in) / Krüger, M. (Autor:in)
2003
6 Seiten, 7 Bilder, 1 Tabelle, 2 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
SP-224-4: Textile Reinforced Concrete (TRC) for Integrated Formworks
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