A way of printing complex structures using half the concrete required by traditional construction methods has been developed by a team at the University of Zürich’s Digital Building Technology department.
The EHT Zürich method uses “optimisation algorithms” to create the most efficient formwork for the structures, and has also developed a process that allows it to control the setting rate of the concrete filling.
According to the team, this digital control over the setting rate means it can “extrude a fluid concrete that emulates the complex surface of the formwork perfectly, and a fast setting concrete that does not need any additional formwork for the upper structure”.
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