Influences of Air-Voids on the Performance of 3D Printing Cementitious Materials (2021-08)¶

10.3390/ma14164438

Che Yujun, Tang Shengwen, Yang Huashan, Li Weiwei, Shi Mengyuan
Journal Article - Materials, Vol. 14, Iss. 16

Abstract

This paper focuses on inspecting the influences of anti-foaming agent (AFA) on the performance of 3D printing cementitious materials (3DPC). The mini-slump, spreading diameter, yield stress, and strength of 3DPC were evaluated. Additionally, the air-void content, air-void morphology, and air-void size distribution of mortar with and without 0.05% AFA were assessed through image analysis. The mechanical performance and air-void structure of 3D printed samples were also investigated and compared to that of conventionally mould cast samples. Test results show that an optimal AFA content enables 3DPC to achieve favorable workability and mechanical performance. The addition of AFA exhibits lower air-void content in 3DPC than that of the sample without the AFA addition. This reduction in air-void content is further strengthened by the results of strength analysis. Electron microscope analysis shows that the use of AFA results in the suppressed formation of large air-voids during the process of fresh 3DPC. Moreover, the air-void morphology substantially influenced the mechanical performance of hardened 3DPC.

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34 References

6 Citations

BibTeX

@article{che_tang_yang_li.2021.IoAVotPo3PCM,
  author            = "Yujun Che and Shengwen Tang and Huashan Yang and Weiwei Li and Mengyuan Shi",
  title             = "Influences of Air-Voids on the Performance of 3D Printing Cementitious Materials",
  doi               = "10.3390/ma14164438",
  year              = "2021",
  journal           = "Materials",
  volume            = "14",
  number            = "16",
}

Formatted Citation

IEEE

Y. Che, S. Tang, H. Yang, W. Li and M. Shi, “Influences of Air-Voids on the Performance of 3D Printing Cementitious Materials”, Materials, vol. 14, no. 16, 2021, doi: 10.3390/ma14164438.

CMOS

Che, Yujun, Shengwen Tang, Huashan Yang, Weiwei Li, and Mengyuan Shi. “Influences of Air-Voids on the Performance of 3D Printing Cementitious Materials”. Materials 14, no. 16 (2021). https://doi.org/10.3390/ma14164438.