The objective of this research project is to provide the essential fundaments for a product-related substitution of steel materials by Ultra High Performance Concrete (UHPC). This represents an essential contribution to sustainable construction because steel is significantly more intensive in terms of cost and CO2 emissions than UHPC. Further, raw materials available in Austria and the micro steel fibers of company Voestalpine CPA Filament GmbH will be used. To achieve the goal of this project, in addition to the development of materials, questions about some basic issues such as the introduction of the prestressing force in thin UHPC components, the bond between normal concrete and UHPC, the connection between UHPC and steel, the confinement effect of UHPC by steel reinforcement and the shear capacity of thin-walled prestressed UHPC panels will be answered. For this purpose, detailed studies using non-linear finite element modeling, engineering models and model experiments are planned. In addition to the investigation into the mechanical relations, studies for the production technology are also scheduled. The results of the basic research should be verified by laboratory tests to demonstrate the basic feasibility of this idea into practice and also to achieve the first reference values for an economic and ecological assessment in terms of product development in further research steps. The productions of the structural components and the tests will be carried out at the precast plant of Kirchdorfer Fertigteilholding GmbH. The consortium consisting of TU Graz, FH Kärnten, Kirchdorfer Fertigteilholding GmbH and Voestalpine CPA Filament GmbH has high competence in various fields. Through mutual complement the best requirement for a successful implementation of the proposed research project is created.
|Effective start/end date||1/10/14 → 30/09/17|
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