Neuartige 3D-Bewehrungen für den Betonbau Teil 2: Entwicklung des Materials

Novel 3D Reinforcements for concrete structures part 2: Material Development. With “Mesh”, an innovative, three-dimensional reinforcement structure made of carbon fibers, which can be produced fully automatically, new possibilities arise for construction and reinforcement concepts in concrete construction. After the first part of this publication series introduced the concept, development, and potential of this novel reinforcement technology, this paper summarizes the material characteristics determined through small-scale experimental investigations. The various process steps in the development of the reinforcement up to the final version are presented. In particular, the tensile load-bearing behavior of the reinforcement structure, investigated using fiber strand tensile tests, as well as the shape and compactness of the fiber strands formed the basis for selecting the preferred variant. Additionally, the test setup and obtained results are described in detail, demonstrating that the manufacturing method has a significant impact on the mechanical properties and quality of the reinforcement structure. In the upcoming parts of this publication series, further experimental investigations will be presented, focusing particularly on the bond behavior of the structure in concrete and large-scale component tests to analyze the shear load-bearing capacity.