Effect of Wollastonite Micro-Fiber Addition on Properties of 3D Printable ‘Just-Add-Water’ Geopolymers (2020-07)¶
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Contribution - Proceedings of the 2nd RILEM International Conference on Concrete and Digital Fabrication, pp. 23-31
Abstract
This paper reports the effects of addition of wollastonite micro-fiber on the properties of a 3D-printable geopolymer for digital construction applications. Having a ‘one-part’ (just-add-water) mixture formulation, the developed 3D-printable geopolymer uses a small amount of activator powder, instead of using a large amount of the commonly used activator solution. A small portion offine sand (10% by weight) was substituted by wollastonite powder. The fresh properties (including shape-retention-ability and yield stress evolution), as well as the hardened properties (including compressive strength and flexural strength) of the mixtures were measured. The results showed that the addition of wollastonite significantly increased the shape-retention-ability and static yield stress of the fresh mixture, which is beneficial in terms of buildability of the material. Furthermore, the results showed that addition of the wollastonite considerably enhanced the flexural strength, while the compressive strength of the hardened specimens remained unchanged
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BibTeX
@inproceedings{bong_nema_arun_xia.2020.EoWMFAoPo3PJAWG,
author = "Shin Hau Bong and Behzad Nematollahi and Arun Ravendran Arunothayan and Ming Xia and Jay Gnananandan Sanjayan",
title = "Effect of Wollastonite Micro-Fiber Addition on Properties of 3D Printable ‘Just-Add-Water’ Geopolymers",
doi = "10.1007/978-3-030-49916-7_3",
year = "2020",
volume = "28",
pages = "23--31",
booktitle = "Proceedings of the 2nd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2020",
editor = "Freek Paul Bos and Sandra Simaria de Oliveira Lucas and Robert Johannes Maria Wolfs and Theo A. M. Salet",
}
Formatted Citation
S. H. Bong, B. Nematollahi, A. R. Arunothayan, M. Xia and J. G. Sanjayan, “Effect of Wollastonite Micro-Fiber Addition on Properties of 3D Printable ‘Just-Add-Water’ Geopolymers”, in Proceedings of the 2nd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2020, 2020, vol. 28, pp. 23–31. doi: 10.1007/978-3-030-49916-7_3.
Bong, Shin Hau, Behzad Nematollahi, Arun Ravendran Arunothayan, Ming Xia, and Jay Gnananandan Sanjayan. “Effect of Wollastonite Micro-Fiber Addition on Properties of 3D Printable ‘Just-Add-Water’ Geopolymers”. In Proceedings of the 2nd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2020, edited by Freek Paul Bos, Sandra Simaria de Oliveira Lucas, Robert Johannes Maria Wolfs, and Theo A. M. Salet, 28:23–31, 2020. https://doi.org/10.1007/978-3-030-49916-7_3.