Hardened Properties of 3D Printable One-Part Geopolymer for Construction Applications (2018-09)¶

10.1007/978-3-319-99519-9_17

Nematollahi Behzad, Xia Ming, Bong Shin, Sanjayan Jay
Contribution - Proceedings of the 1^st RILEM International Conference on Concrete and Digital Fabrication, pp. 190-199

Abstract

This paper reports the hardened properties of an extrusion-based 3D printable ‘one-part’ geopolymer for construction applications. To date, all of the 3D printable geopolymers reported in the literature had ‘two-part’ mix formulations, made by using liquid activators. In contrast, the 3D printable geopolymer developed in this study has a ‘one-part’ (just-add-water) mix formulation, made by using a small amount of solid activator instead of the commonly used liquid activators. Handling a small amount of solid activators instead of large quantities of user-hostile liquid activators significantly enhances commercial viability and large-scale application of the 3D printable geopolymers in construction industry. Effects of print-time interval on the inter-layer strength, along with compressive and flexural strengths of the developed 3D printed ‘one-part’ geopolymer in different directions were investigated. Specimens were printed with 2 and 15 min delay times (print-time intervals). Compressive, flexural and inter-layer strengths of the 3D printed ‘one-part’ geopolymer were measured. The results showed that the print-time interval had a significant effect on the inter-layer strength of the 3D printed ‘one-part’ geopolymer. However, the effect of the print-time interval on the compressive and flexural strengths of the 3D printed ‘one-part’ geopolymer was negligible. The results also showed that the compressive and flexural strengths of the 3D printed ‘one-part’ geopolymer depended on the loading direction.

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6 References

35 Citations

BibTeX

@inproceedings{nema_xia_bong_sanj.2019.HPo3POPGfCA,
  author            = "Behzad Nematollahi and Ming Xia and Shin Hau Bong and Jay Gnananandan Sanjayan",
  title             = "Hardened Properties of 3D Printable One-Part Geopolymer for Construction Applications",
  doi               = "10.1007/978-3-319-99519-9_17",
  year              = "2019",
  volume            = "19",
  pages             = "190--199",
  booktitle         = "Proceedings of the 1st RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2018",
  editor            = "Timothy Paul Wangler and Robert Johann Flatt",
}

Formatted Citation

IEEE

B. Nematollahi, M. Xia, S. H. Bong and J. G. Sanjayan, “Hardened Properties of 3D Printable One-Part Geopolymer for Construction Applications”, in Proceedings of the 1^st RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2018, 2019, vol. 19, pp. 190–199. doi: 10.1007/978-3-319-99519-9_17.

CMOS

Nematollahi, Behzad, Ming Xia, Shin Hau Bong, and Jay Gnananandan Sanjayan. “Hardened Properties of 3D Printable One-Part Geopolymer for Construction Applications”. In Proceedings of the 1^st RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2018, edited by Timothy Paul Wangler and Robert Johann Flatt, 19:190–99, 2019. https://doi.org/10.1007/978-3-319-99519-9_17.