Rheological Parameters and Building Time of 3D Printing Sulphoaluminate-Cement-Paste Modified by Retarder and Diatomite (2019-10)¶

10.1016/j.conbuildmat.2019.117391

Chen Mingxu, Li Laibo, Wang Jiaao, Huang Yongbo, Wang Shoude, Zhao Piqi, Lu Lingchao, Cheng Xin
Journal Article - Construction and Building Materials, Vol. 234

Abstract

Recent advances have proposed new requirements on the controlling of the hydration, the rheology, and the structural build-up of 3D printing (3DP) sulphoaluminate cement (SAC) paste. In this study, the boric acid (BA), the sodium gluconate (SG), and the diatomite were used to control these behaviors of 3DP SAC paste, and the printed structures could be well built based on the extrusion system. The results show that the building time and printability can be improved by the introduction of BA and SG into SAC paste, but the excessive dosage will cause the structural failure. To decrease the structural deformation of 3DP SAC paste, the diatomite was applied to increase the static yield stress and elasticity modulus. Meanwhile, a paste sample with the structural deformation less than 10% can be achieved when the static and dynamic yield stress was controlled in the range of 590–895 Pa, and 509–722 Pa, respectively. In conclusion, the 3D printed structures and rheology could be well controlled by the introduction of retarders and diotomite in the 3DP SAC paste.

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19 References

71 Citations

BibTeX

@article{chen_li_wang_huan.2020.RPaBTo3PSCPMbRaD,
  author            = "Mingxu Chen and Laibo Li and Jiaao Wang and Yongbo Huang and Shoude Wang and Piqi Zhao and Lingchao Lu and Xin Cheng",
  title             = "Rheological Parameters and Building Time of 3D Printing Sulphoaluminate-Cement-Paste Modified by Retarder and Diatomite",
  doi               = "10.1016/j.conbuildmat.2019.117391",
  year              = "2020",
  journal           = "Construction and Building Materials",
  volume            = "234",
}

Formatted Citation

IEEE

M. Chen, “Rheological Parameters and Building Time of 3D Printing Sulphoaluminate-Cement-Paste Modified by Retarder and Diatomite”, Construction and Building Materials, vol. 234, 2020, doi: 10.1016/j.conbuildmat.2019.117391.

CMOS

Chen, Mingxu, Laibo Li, Jiaao Wang, Yongbo Huang, Shoude Wang, Piqi Zhao, Lingchao Lu, and Xin Cheng. “Rheological Parameters and Building Time of 3D Printing Sulphoaluminate-Cement-Paste Modified by Retarder and Diatomite”. Construction and Building Materials 234 (2020). https://doi.org/10.1016/j.conbuildmat.2019.117391.