Additive Flow Production of Lightweight Precision Concrete Elements (2024-09)¶

In the context of Industry 4.0, the focus in modern flow production is on the end-to-end digitally controlled value chain. In particular, the combination of lightweight construction principles with a thin shotcrete layer and ribbed support structures, e.g. for façade elements, results in highly efficient components with a high load-bearing capacity and high-quality surfaces. The developed combined concrete spraying-extrusion multitool nozzle offers the possibility of both spraying and extrusion. In addition, the automated integration of anchors is the focus of flow production, for which special anchors and tool systems have been developed. Based on the characteristic values determined, the practicability and the increase in productivity could be proven. This data forms the basis for a digital twin in preparation for Industry 4.0. The increase in productivity in additive manufacturing leads to positive economic effects. Applications of high-strength lightweight structures in the construction industry are becoming more attractive and enable the series implementation of free-form modular designs.