A Framework for Performance-Based Testing of Fresh Mixtures for Construction-Scale 3D Printing

A step-by-step procedure for performance-based testing of mixtures for construction-scale 3D printing is proposed. Workability of a fresh “printing mixture” is described in terms of print quality, shape stability, robustness, and printability window. To demonstrate the proposed procedure and test methods, an experimental program is carried out using four different mixtures. The experimental results are used as the basis for discussion and comparison of performance of developed mixtures for use in construction-scale 3D printing. Finally, perspectives on the future research areas as critical steps for advancement of construction-scale 3D printing are provided.

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