LOAD-ADAPTED TEXTILE STRUCTURES FOR CONCRETE REINFORCEMENT

摘要

The textile reinforced concrete is a new, innovative and efficient building material. Due to its favourable properties and the scope of design it offers various applications. It is possible to use the textile reinforcement alternatively or in combination with conventional building materials, e. g. steel reinforced concrete on one side and short fibre reinforced concrete on the opposite side. This new building material is qualified for conservation, restoration as well as strengthening the sides of old building fabric and also for the manufacturing of new concrete components. Through the development of textile manufacturing technologies filament yarns can be manufactured into open grid structures which increase the potential of alternative reinforcements. It is currently possible to manufacture load-adapted textile structures. It is essential that the high-performance mechanical properties of the alkali-resistant glass fibres or carbon fibres used are maintained throughout the manufacturing process until the finished component is complete. Therefore the quality of the yarn orientation and the yarn distribution in the yarn layer has to be obtained secured throughout the manufacturing process until the finished textile fabric is complete. Related fundamental research projects about the development of load-adapted textile reinforced concrete has been investigated at the Institute of Textile and Clothing Technology, Dresden University of Technology, Germany since 1993. As a result, several demonstration components have been developed, e. g. formwork systems, sandwich components, sound protection elements, facade and balustrade elements for pre-fabrication as well as subsequent reinforcement of ferro-reinforced masts and implementations of sculptures with novel building materials. In July 1999, the collaborative research centre (SFB 528) "Textile Reinforcement for Structural Strengthening and Retrofitting" has been established at Dresden University of Technology . Since that time many researchers from different departments have worked together in interdisciplinary groups to develop "textile reinforced concrete" further.