Textile reinforcements have established themselves as a convincing alternative to conventional steel reinforcements in the building industry. Due to their high load-bearing capacities in addition to a smaller concrete cross section required, the bond between textile and concrete is extremely important. In contrast to ribbed steel bars ensuring a stable mechanical interlock with concrete (form fit), the bond force of carbon rovings has so far been transmitted primarily via the coating of the textile, i.e. by a cohesive adhesive bond with the concrete matrix (material fit). However, this material fit does not enable the efficient use of the mechanical load capacity of the textile reinforcement. Solutions involving profiled rovings promise significant
improvements in the bonding behaviour by creating an additional mechanical interlock with the concrete matrix. In order to achieve a form-fit effect between roving and concrete, a defined roving geometry based on ribbed steel bars has to be created. For this purpose, an innovative profiling process was developed and implemented; this included a reshaping-process with a uniform reorientation of all filaments, yet ensuring a linear orientation of each filament in the roving for minimizing yarn elongation under load.