Bao Ta Minh Phuong, Yeakleang Muy, Abdelouhab Sandra, Courard Luc
Urban and Environmental Engineering, Building Materials, University of Liège, 4000 Liège, Belgium.
Belgian Ceramic Research Center, 7000 Mons, Belgium.
Materials (Basel). 2024 Oct 12;17(20):5002. doi: 10.3390/ma17205002.
Three-dimensionally printed concrete is a transformative technology that addresses housing shortages due to population growth and enables innovative architectural designs. The objective of this study is to investigate the connection between a conventional test and the rheological properties of 3D-printed concrete. A more precise assessment of material quality based on traditional evaluation techniques is proposed. Standard tests are conducted to evaluate the consistency of 3D-printed concrete materials. Complementarily, a rheometer is employed to accurately measure key rheological properties, thereby establishing a link with empiric testing methodologies. The correlation between the flow table test and rheological coefficients, such as yield stress and viscosity, has been identified as the most effective in basic experiments for evaluating material behavior. This approach allows for a preliminary assessment of printability without the need for additional complex equipment. The study has successfully established a relationship between flow table tests and rheological parameters. However, further research involving a broader range of materials and print-test experiments is essential to enhance the correlation between other conventional testing methods and rheometer results.
三维打印混凝土是一项变革性技术，可解决因人口增长导致的住房短缺问题，并实现创新的建筑设计。本研究的目的是探究传统测试与3D打印混凝土流变特性之间的联系。提出了一种基于传统评估技术对材料质量进行更精确评估的方法。进行标准测试以评估3D打印混凝土材料的稠度。作为补充，使用流变仪精确测量关键流变特性，从而与经验测试方法建立联系。在评估材料性能的基础实验中，流动台试验与流变系数（如屈服应力和粘度）之间的相关性已被确定为最有效。这种方法无需额外的复杂设备即可对可打印性进行初步评估。该研究成功建立了流动台试验与流变参数之间的关系。然而，要加强其他传统测试方法与流变仪结果之间的相关性，还需要开展涉及更广泛材料和打印测试实验的进一步研究。
