Investigation of the Properties of Alkali-Activated Slag Mixes Involving the Use of Nano-Clay and Nucleation-Seeds for 3D Printing (2020-01)¶

10.1016/j.compositesb.2020.107826

Panda Biranchi, Ruan Shaoqin, Unluer Cise, Tan Ming
Journal Article - Composites Part B: Engineering, Vol. 186

Abstract

This study investigated the properties of alkali activated slag (AAS) binders formulated for extrusion-based 3D printing. The fresh properties of AAS mixes were tailored through the use of nanoclay (NC) and nucleation seeds. The printability criteria employed were the ease of extrusion (extrudability) and the stability of the layered structure (buildability). Introduction of 0.4% NC in AAS mixes led to improved thixotropic properties due to the flocculation effect, which accounted for the extrudability and shape fidelity of the binder. Inclusion of 2% hydromagnesite seeds in this mix design provided additional nucleation sites for the increased precipitation of hydrate phases, resulting in denser microstructures. This enhanced the hydration reaction and improved the structural build-up rate necessary for large-scale 3D printing. The developed AAS mix containing 0.4% NC and 2% hydromagnesite seeds was used in the printing of an actual 3D structure to demonstrate its feasibility to be used in 3D printing applications.

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27 References

103 Citations

BibTeX

@article{pand_ruan_unlu_tan.2020.IotPoAASMItUoNCaNSf3P,
  author            = "Biranchi Narayan Panda and Shaoqin Ruan and Cise Unluer and Ming Jen Tan",
  title             = "Investigation of the Properties of Alkali-Activated Slag Mixes Involving the Use of Nano-Clay and Nucleation-Seeds for 3D Printing",
  doi               = "10.1016/j.compositesb.2020.107826",
  year              = "2020",
  journal           = "Composites Part B: Engineering",
  volume            = "186",
}

Formatted Citation

IEEE

B. N. Panda, S. Ruan, C. Unluer and M. J. Tan, “Investigation of the Properties of Alkali-Activated Slag Mixes Involving the Use of Nano-Clay and Nucleation-Seeds for 3D Printing”, Composites Part B: Engineering, vol. 186, 2020, doi: 10.1016/j.compositesb.2020.107826.

CMOS

Panda, Biranchi Narayan, Shaoqin Ruan, Cise Unluer, and Ming Jen Tan. “Investigation of the Properties of Alkali-Activated Slag Mixes Involving the Use of Nano-Clay and Nucleation-Seeds for 3D Printing”. Composites Part B: Engineering 186 (2020). https://doi.org/10.1016/j.compositesb.2020.107826.