Innovation of Quick Concrete Mix Processes for 3D Printing

The rheological contradiction between buildability and pumpability poses significant challenges in 3D Concrete Printing. This doctoral thesis innovates Quick Nozzle Mixing Technology as an alternative solution to these challenges. It comprehensively investigates the effects of raw materials and mixture proportions on concrete mixing efficiency (i.e., mixing duration and energy consumption). This innovation, the first of its kind, allows for direct production of fresh concrete from dry raw materials in the nozzle and achieves printing without the need for pumping. The success of this technology is expected to promote the automated process of 3D concrete printing, paving the way for more efficient construction methods.