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- Title
Extrusion faserverstärkter Textilbetone: Entwicklung einer geeigneten Feinbetonrezeptur und einer prozessintegrierten Textilzuführung.
- Authors
Janissen, Lisa; Raupach, Michael; Hartung‐Mott, Rebecca
- Abstract
Extrusion of textile reinforced concrete with short fibers – development of a suitable fine concrete mix and a process integrated textile feed Because of the high formwork and manufacturing costs of conventional manufacturing processes for textile reinforced concrete, such as casting, laminating, spraying or centrifuging, these processes are only suitable for serial batch production or for individual applications. However the extrusion has the economic and technological potential to continuously produce complex and filigree components without time‐ and cost‐intensive formwork and an integrated process of reinforcing. Currently, the extrusion process is successfully used in different branches with varying materials in order to manufacture products in numerous geometries in high qualities and quantities. The extrusion process is also gaining more importance in the construction industry, due to the progressive digitalisation of production processes, such as the 3D printing of concrete. Through the use of technical textiles as reinforcement the structural elements can be made even thinner‐walled with a significant increase of its tensile strength. The use of short fibres can have an additional positive effect on the formation of microcracks, the mechanical properties and the ductility of the material, due to the ideal orientation of the fibres in the direction of extrusion. In the following article, the requirements for an extrudable fine concrete mix with short fibres are clarified and the development process of a suitable textile feed into the extrusion process is described.
- Subjects
MANUFACTURING processes; EXTRUSION process; MECHANICAL behavior of materials; CONCRETE mixing; TECHNICAL textiles; MICROCRACKS
- Publication
Bautechnik, 2019, Vol 96, Issue 10, p723
- ISSN
0932-8351
- Publication type
Article
- DOI
10.1002/bate.201900050