Extrusion of Near-Nozzle Mixed Concrete - Towards Functionally Graded 3DCP (A03)

• Subject Area: Construction Material Sciences, Chemistry, Building Physics ; Engineering Design, Machine Elements, Product Development ; Structural Engineering, Building Informatics and Construction Operation
• Term: since 2020
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 414265976

Near-Nozzle-Mixing (NNM) represents an innovative extrusion process in 3D concrete printing developed in the previous funding period and is intended to overcome restrictions of conventional extrusion processes. The focus of further research is on the development of the NNM process with regard to functional grading, fibre integration and process monitoring using inline quality measurement (IQM), the transition of material development from already investigated mortars to extrudable sustainable concretes with the aid of extensive material tests and the investigation of structural properties of specially designed and printed test components.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 277: Additive Manufacturing in Construction (AMC) – The Opportunity for Large Impact
• Applicant Institution: Technische Universität Braunschweig
• Project Heads: Dr. Freek Bos; Professor Dr.-Ing. Johannes Fottner; Professor Dr.-Ing. Christoph Gehlen