A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Effect of Wollastonite Micro-Fiber Addition on Properties of 3D-Printable ‘Just-Add-Water’ Geopolymers
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 of fine 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.
Effect of Wollastonite Micro-Fiber Addition on Properties of 3D-Printable ‘Just-Add-Water’ Geopolymers
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 of fine 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.
Effect of Wollastonite Micro-Fiber Addition on Properties of 3D-Printable ‘Just-Add-Water’ Geopolymers
RILEM Bookseries
Bos, Freek P. (editor) / Lucas, Sandra S. (editor) / Wolfs, Rob J.M. (editor) / Salet, Theo A.M. (editor) / Bong, Shin Hau (author) / Nematollahi, Behzad (author) / Arunothayan, Arun R. (author) / Xia, Ming (author) / Sanjayan, Jay (author)
RILEM International Conference on Concrete and Digital Fabrication ; 2020 ; Eindhoven, The Netherlands
Second RILEM International Conference on Concrete and Digital Fabrication ; Chapter: 3 ; 23-31
RILEM Bookseries ; 28
2020-07-08
9 pages
Article/Chapter (Book)
Electronic Resource
English
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