Geert De Schütter

Data Availability Statement All data, models, and code generated or used during the study appear in the published article. Acknowledgments This paper is a scientific output of the research actions performed in the framework of the FWO-EOS Project 30439691 “INTERdisciplinary multiscale Assessment of a new generation of Concrete with alkali-activated maTerials” (INTERACT). The financial support by FWO-EOS is gratefully acknowledged.

5. Numerical Results: Effects Based on Service Life Analyses Within this section, the service life of concrete structures with 3D printed formwork is studied in relation to the considered concrete cover thickness and curing conditions. Mind that these reported values are subjected to the limitations of the used model and its parameters. Any changes to the input will alter the outcome. Therefore, the reported results should be seen as indicative values.

3. Results and Discussion 3.1. Flow Curve The rheological behavior of cement-based mixtures is crucial for their flow properties during 3DCP. In this study, four print-enabling pastes were formulated aiming for different evolutions of rheological properties. The objective was to ensure that the mixtures possessed the same initial yield stress but exhibited varying degrees of yield stress development over time, thereby enabling the examination of a distinct range of behaviors.