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Impact of Drying of 3D Printed Cementitious Pastes on Their Degree of Hydration (2022-06)

10.1007/978-3-031-06116-5_32

 Ghantous Rita, Valadez-Carranza Yvette, Reese Steven,  Weiss William
Contribution - Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication, pp. 216-221

Abstract

The 3D printing of cementitious materials has been proposed as a method to reduce costs and waste associated with formwork. However, the 3D printing of concrete faces some challenges. One specific obstacle is related to the curing and shrinkage of the printed cementitious materials. These elements often contain a high paste content and poor curing conditions. Information is needed about the drying behavior of cementitious elements with very high surface to volume ratio that are exposed to drying nearly immediately upon placement. This study uses neutron radiography to evaluate the impact of the drying of printed cement paste samples on their degree of hydration. Exposing 3D printed samples to the atmosphere, (i.e., drying) severely limited the hydration. The impact of drying was highly dependent on the surface to volume ratio of the element. The degree of hydration of a material is linearly correlated to the square root of its volume to surface ratio.

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1 Citations

  1. Pierre Maxime, Ghabezloo Siavash, Dangla Patrick, Mesnil Romain et al. (2025-06)
    Multiphysics Modelling of 3D Concrete Printing:
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BibTeX 
@inproceedings{ghan_vala_rees_weis.2022.IoDo3PCPoTDoH,
  author            = "Rita Maria Ghantous and Yvette Valadez-Carranza and Steven R. Reese and William Jason Weiss",
  title             = "Impact of Drying of 3D Printed Cementitious Pastes on Their Degree of Hydration",
  doi               = "10.1007/978-3-031-06116-5_32",
  year              = "2022",
  volume            = "37",
  pages             = "216--221",
  booktitle         = "Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2022",
  editor            = "Richard A. Buswell and Ana Blanco and Sergio Cavalaro and Peter Kinnell",
}
Formatted Citation

R. M. Ghantous, Y. Valadez-Carranza, S. R. Reese and W. J. Weiss, “Impact of Drying of 3D Printed Cementitious Pastes on Their Degree of Hydration”, in Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2022, 2022, vol. 37, pp. 216–221. doi: 10.1007/978-3-031-06116-5_32.

Ghantous, Rita Maria, Yvette Valadez-Carranza, Steven R. Reese, and William Jason Weiss. “Impact of Drying of 3D Printed Cementitious Pastes on Their Degree of Hydration”. In Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2022, edited by Richard A. Buswell, Ana Blanco, Sergio Cavalaro, and Peter Kinnell, 37:216–21, 2022. https://doi.org/10.1007/978-3-031-06116-5_32.