Developing Low-pH 3D Printing Concrete Using Solid Wastes (2023-02)¶

10.3390/buildings13020454

Li Xiao-Sheng, Li Long, Zou Shuai
Journal Article - Buildings, Vol. 13, Iss. 2

Abstract

Three-dimensional concrete printing technology provides the possibility to fabricate specific and eco-friendly concrete components for application on shorelines or in other areas, providing environmental protection. In this study, solid wastes in Hong Kong are employed for low-pH 3D printing concrete to further decrease the impact on the environment. The results indicate that WGP replacement in a classic low-pH recipe leads to lower yield stress and surface pH, as well as volume stability. The employment of slag improves workability and printability, but maintains the surface pH and drying shrinkage. The printing height is not merely determined by slump flow, and contributions from every binder on the surface pH are quantified based on simplified calculations. Reducing OPC and increasing SF in the classic low-pH recipe achieves the best printing performance and improved environmental friendliness.

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22 References

3 Citations

BibTeX

@article{li_li_zou.2023.DLp3PCUSW,
  author            = "Xiao-Sheng Li and Long Li and Shuai Zou",
  title             = "Developing Low-pH 3D Printing Concrete Using Solid Wastes",
  doi               = "10.3390/buildings13020454",
  year              = "2023",
  journal           = "Buildings",
  volume            = "13",
  number            = "2",
}

Formatted Citation

IEEE

X.-S. Li, L. Li and S. Zou, “Developing Low-pH 3D Printing Concrete Using Solid Wastes”, Buildings, vol. 13, no. 2, 2023, doi: 10.3390/buildings13020454.

CMOS

Li, Xiao-Sheng, Long Li, and Shuai Zou. “Developing Low-pH 3D Printing Concrete Using Solid Wastes”. Buildings 13, no. 2 (2023). https://doi.org/10.3390/buildings13020454.