Properties of 3D Printable Ductile Fiber-Reinforced Geopolymer Composite for Digital Construction Applications (2019-09)¶

10.1007/978-3-030-22566-7_42

Bong Shin, Nematollahi Behzad, Xia Ming, Nazari Ali, Sanjayan Jay, Pan Jinlong
Contribution - Proceedings of the 2^nd International RILEM Conference on Rheology and Processing of Construction Materials and the 9^th International RILEM Symposium on Self-Compacting Concrete, pp. 363-372

Abstract

Two main limitations of extrusion-based 3D concrete printing process are the incorporation of conventional steel bars and the limited range of printable concretes. To tackle both limitations, this paper investigates feasibility of developing a 3D-printable ductile fibre-reinforced geopolymer composite (DFRGC) for digital construction applications. Instead of the conventional cement binder, a “just-add-water” geopolymer binder was used for production of the 3D-printable DFRGC, which considerably improves its sustainability performance and commercial viability in the construction industry. A series of experiments including bulk density, apparent porosity, compression, and flexural tests were conducted to characterize the mechanical properties of the 3Dprintable DFRGC. The effect of number of printed layers on the mechanical properties of the 3D-printable DFRGC was also investigated. Further, dependency of the compressive strength of the printed sample on the testing direction was also evaluated. The developed 3D-printable DFRGC exhibited deflectionhardening behaviour in flexure with high modulus of rupture of up to 10.2 MPa and deflection capacity of up to 5.3 mm. Therefore, the feasibility of developing 3D-printable deflection-hardening ductile geopolymer composites was established. The results also showed that the compressive and flexural performances of the 3D-printed DFRGC specimens depended on the testing direction and number of printed layers.

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10 References

20 Citations

BibTeX

@inproceedings{bong_nema_xia_naza.2019.Po3PDFRGCfDCA,
  author            = "Shin Hau Bong and Behzad Nematollahi and Ming Xia and Ali Nazari and Jay Gnananandan Sanjayan and Jinlong Pan",
  title             = "Properties of 3D Printable Ductile Fiber-Reinforced Geopolymer Composite for Digital Construction Applications",
  doi               = "10.1007/978-3-030-22566-7_42",
  year              = "2019",
  volume            = "23",
  pages             = "363--372",
  booktitle         = "Proceedings of the 2nd International RILEM Conference on Rheology and Processing of Construction Materials and the 9th International RILEM Symposium on Self-Compacting Concrete",
  editor            = "Viktor Mechtcherine and Kamal H. Khayat and Egor Secrieru",
}

Formatted Citation

IEEE

S. H. Bong, B. Nematollahi, M. Xia, A. Nazari, J. G. Sanjayan and J. Pan, “Properties of 3D Printable Ductile Fiber-Reinforced Geopolymer Composite for Digital Construction Applications”, in Proceedings of the 2^nd International RILEM Conference on Rheology and Processing of Construction Materials and the 9^th International RILEM Symposium on Self-Compacting Concrete, 2019, vol. 23, pp. 363–372. doi: 10.1007/978-3-030-22566-7_42.

CMOS

Bong, Shin Hau, Behzad Nematollahi, Ming Xia, Ali Nazari, Jay Gnananandan Sanjayan, and Jinlong Pan. “Properties of 3D Printable Ductile Fiber-Reinforced Geopolymer Composite for Digital Construction Applications”. In Proceedings of the 2^nd International RILEM Conference on Rheology and Processing of Construction Materials and the 9^th International RILEM Symposium on Self-Compacting Concrete, edited by Viktor Mechtcherine, Kamal H. Khayat, and Egor Secrieru, 23:363–72, 2019. https://doi.org/10.1007/978-3-030-22566-7_42.