Implementation of Brucite in Alkali-Activated Materials Intended for 3D Printed Structures (2025-06)¶

A Fractional Factorial Design Approach

10.1007/978-3-031-92044-8_3

Najm Omar, Alhassan Mohammad
Contribution - Proceedings of the International Conferences on Digital Technology Driven Engineering, pp. 24-32

Abstract

This study explores the Taguchi fractional factorial design-ofexperiment methodology to optimize alkali-activated pastes made with groundgranulated blast-furnace slag (GGBFS) and a novel combination of sodium silicate and Brucite slurry as alkali activators. The research aims to respond to the need for greenhouse gas emission reduction in the atmosphere by introducing Brucite slurry as a substitute for traditional caustic alkaline activators, i.e., sodium and potassium hydroxides. Preliminary findings of the study revealed the potential of prepared pastes for solidifications under ambient curing; indicating the higher potential for being optimized using the Taguchi method. An L9 orthogonal array was used to conduct the Taguchi design of the experiment, varying three factors: the sodium silicate-to-Brucite slurry ratio, Brucite slurry concentration, and the curing temperature. While the strength-oriented optimal was reported through the use of the plot of means, the influence of each factor on the strength result was analyzed using the analysis of variance (ANOVA). The study objects to develop a sustainable alternative to Portland cement by revolutionizing construction practices that could be used in 3D printing applications. To the knowledge of the authors, this research is the first to use Brucite slurry in the activation process of GGBFS pastes; offering a promising pathway for reducing the carbon footprint of the concrete industry.

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BibTeX

@inproceedings{najm_alha.2025.IoBiAAMIf3PS,
  author            = "Omar Najm and Mohammad Alhassan",
  title             = "Implementation of Brucite in Alkali-Activated Materials Intended for 3D Printed Structures: A Fractional Factorial Design Approach",
  doi               = "10.1007/978-3-031-92044-8_3",
  year              = "2025",
  volume            = "647",
  pages             = "24--32",
  booktitle         = "Proceedings of the International Conferences on Digital Technology Driven Engineering",
  editor            = "Nikos D. Lagaros and Rajai Z. Alrrousan and Khairedin M. Abdalla and Marios C. Phocas and Giuseppe Carlo Marano",
}

Formatted Citation

IEEE

O. Najm and M. Alhassan, “Implementation of Brucite in Alkali-Activated Materials Intended for 3D Printed Structures: A Fractional Factorial Design Approach”, in Proceedings of the International Conferences on Digital Technology Driven Engineering, 2025, vol. 647, pp. 24–32. doi: 10.1007/978-3-031-92044-8_3.

CMOS

Najm, Omar, and Mohammad Alhassan. “Implementation of Brucite in Alkali-Activated Materials Intended for 3D Printed Structures: A Fractional Factorial Design Approach”. In Proceedings of the International Conferences on Digital Technology Driven Engineering, edited by Nikos D. Lagaros, Rajai Z. Alrrousan, Khairedin M. Abdalla, Marios C. Phocas, and Giuseppe Carlo Marano, 647:24–32, 2025. https://doi.org/10.1007/978-3-031-92044-8_3.