Circular carbon fiber reinforcements (E02*)

• Subject Area: Construction Material Sciences, Chemistry, Building Physics ; Physical Chemistry of Solids and Surfaces, Material Characterisation ; Polymeric and Biogenic Materials and Derived Composites
• Term: since 2024
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 417002380

In this project, two approaches are being pursued to enable the complete circular use of carbon fiber reinforcements (CF). In the first approach, commercially available polymer-impregnated CFs reinforcements are separated electrochemically and broken down into their individual components. In the second approach, mineral-impregnated carbon fiber reinforcements (MCF) based on magnesium oxychloride cement are being investigated. Both processes are characterized by a favorable environmental balance and improved recyclability. Based on these studies, experimental methods are investigated to weaken the interphase of carbon-reinforced concrete in order to achieve an easier separation of the reinforcement from the surrounding concrete.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 280: Design Strategies for Material-Minimised Carbon Reinforced Concrete Structures—Principles of a New Approach to Construction
• Applicant Institution: Technische Universität Dresden, since 7/2024
• Project Heads: Professor Dr.-Ing. Marco Liebscher, since 7/2024; Professorin Dr. Inez Weidinger, since 7/2024