A Two-Phase Design-Strategy Based on the Composite of Mortar and Coarse Aggregate for 3D Printable Concrete with Coarse Aggregate (2022-05)¶

10.1016/j.jobe.2022.104672

Zhang Chao, Jia Zijian, Wang Xianggang, Jia Lutao, Deng Zhicong, Wang Zhibin, Zhang Yamei, Mechtcherine Viktor
Journal Article - Journal of Building Engineering, Vol. 54

Abstract

In this investigation, a two-phase design strategy based on the composite of mortar phase and coarse aggregate phase is proposed for designing 3D printable concrete (3DPC) with coarse aggregate. Coussot model and Krieger-Dougherty model were utilized to establish a quantitative relationship between the rheological property of 3DPC and the volume fraction of coarse aggregate, aiming to design 3DPC with coarse aggregate based on the mix proportion of printable mortar and thus facilitate the mixture design. It is found that the plastic viscosity of 3DPC with coarse aggregate is excessively high when the volume fraction of coarse aggregate reaches to a certain value, which is the main reason restricting the printability of 3DPC with coarse aggregate. The printability of 3DPC with coarse aggregate cannot be solely evaluated by yield stress, the plastic viscosity should be taken into consideration together with yield stress for evaluation as well.

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28 References

33 Citations

BibTeX

@article{zhan_jia_wang_jia.2022.ATPDSBotCoMaCAf3PCwCA,
  author            = "Chao Zhang and Zijian Jia and Xianggang Wang and Lutao Jia and Zhicong Deng and Zhibin Wang and Yamei Zhang and Viktor Mechtcherine",
  title             = "A Two-Phase Design-Strategy Based on the Composite of Mortar and Coarse Aggregate for 3D Printable Concrete with Coarse Aggregate",
  doi               = "10.1016/j.jobe.2022.104672",
  year              = "2022",
  journal           = "Journal of Building Engineering",
  volume            = "54",
}

Formatted Citation

IEEE

C. Zhang, “A Two-Phase Design-Strategy Based on the Composite of Mortar and Coarse Aggregate for 3D Printable Concrete with Coarse Aggregate”, Journal of Building Engineering, vol. 54, 2022, doi: 10.1016/j.jobe.2022.104672.

CMOS

Zhang, Chao, Zijian Jia, Xianggang Wang, Lutao Jia, Zhicong Deng, Zhibin Wang, Yamei Zhang, and Viktor Mechtcherine. “A Two-Phase Design-Strategy Based on the Composite of Mortar and Coarse Aggregate for 3D Printable Concrete with Coarse Aggregate”. Journal of Building Engineering 54 (2022). https://doi.org/10.1016/j.jobe.2022.104672.