Blockage-Mechanism-Analysis and Optimization Design of 3D Concrete Print-Head (2024-04)¶
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Journal Article - Journal of Sustainable Cement-Based Materials, Vol. 13, Iss. 5, pp. 786-798
Abstract
Fast setting and hardening cement has the advantages of short setting time and high early strength. However, when using screw extrusion for 3D printing, there is often a serious blockage problem, which limits the application. In this study, we presented a novel approach to address this issue. Firstly, the blockage reasons in the printing process were obtained through simulations and experimental tests, then a superhydrophobic coating was applied to reduce the slip coefficient of the screw and the inner surface of the nozzle, the printing performance was improved finally. The results indicated that the pressure gradient in the cylinder decreased by 75.07% compared to the uncoated printhead. The shear rate and the flow velocity at the outlet were homogeneously distributed, and no plug flow was formed in the channel. Even after 60 min of continuous printing, the paste only adhered to the pushing flight flank, and no significant blockage occurred.
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2 Citations
- Wu Changzhong, Lu Yuanyuan, Tian Jiaxin, Zhu Xingyu et al. (2025-01)
Research on 3D Printed Section of Concrete Based on Robot Arm and Structural Design of Sprinkler Head - Wang Yibo, Yan Ming, Yang Kun, Ao Chenyang et al. (2025-01)
Effect of Wall-Slip on the Extrusion-Characteristics of 3D Printing of Cementitious Materials
BibTeX
@article{wang_ren_yan_ao.2024.BMAaODo3CPH,
author = "Yibo Wang and Changzai Ren and Ming Yan and Chenyang Ao",
title = "Blockage-Mechanism-Analysis and Optimization Design of 3D Concrete Print-Head",
doi = "10.1080/21650373.2024.2338526",
year = "2024",
journal = "Journal of Sustainable Cement-Based Materials",
volume = "13",
number = "5",
pages = "786--798",
}
Formatted Citation
Y. Wang, C. Ren, M. Yan and C. Ao, “Blockage-Mechanism-Analysis and Optimization Design of 3D Concrete Print-Head”, Journal of Sustainable Cement-Based Materials, vol. 13, no. 5, pp. 786–798, 2024, doi: 10.1080/21650373.2024.2338526.
Wang, Yibo, Changzai Ren, Ming Yan, and Chenyang Ao. “Blockage-Mechanism-Analysis and Optimization Design of 3D Concrete Print-Head”. Journal of Sustainable Cement-Based Materials 13, no. 5 (2024): 786–98. https://doi.org/10.1080/21650373.2024.2338526.