Dimensional accuracy, flowability, wettability, and porosity in inkjet 3DP for gypsum and cement mortar materials

Shakor, P; Nejadi, S; Paul, G; Sanjayan, J

Dimensional accuracy, flowability, wettability, and porosity in inkjet 3DP for gypsum and cement mortar materials

Shakor, P

Nejadi, S Paul, G

Sanjayan, J

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Publication Type:: Journal Article
Citation:: Automation in Construction, 2020, 110
Issue Date:: 2020-02-01

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Field	Value	Language
dc.contributor.author	Shakor, P https://orcid.org/0000-0002-6617-261X	en_US
dc.contributor.author	Nejadi, S	en_US
dc.contributor.author	Paul, G https://orcid.org/0000-0002-3478-0020	en_US
dc.contributor.author	Sanjayan, J	en_US
dc.date.issued	2020-02-01	en_US
dc.identifier.citation	Automation in Construction, 2020, 110	en_US
dc.identifier.issn	0926-5805	en_US
dc.identifier.uri	http://hdl.handle.net/10453/137173
dc.description.abstract	© 2019 Inkjet (powder-based) 3D Printing is a popular and widely used technology, which can be applied to print a wide range of specimens using different powder materials. This paper discusses the use of inkjet 3DP technology for construction applications using custom-made powder instead of commercial gypsum powder (ZP 151). The paper aims to address the differences between ZP 151 and CP (a custom-made construction-specific cement mortar powder) with regard to powder flowability, wettability, powder bed porosity and apparent porosity in 3DP specimens. An inkjet 3D printer is employed and experimental results verify that ZP 151 has a lower angle of repose, a higher contact angle and noticeably less porosity in the powder bed compared with the CP powder. Additionally, specimens printed with ZP 151 have a lower apparent porosity compared with CP specimens. The wettability for each of the powders was tested using contact angle goniometer, while the Optronis Cam-Recorder was used at 1000 fps at 800 × 600 pixel resolution images for the powder flowability tests. The bulk density tester was utilised to find the apparent porosity in the printed specimens. The paper also discusses the details of the printing procedure and dimensional accuracy of printed specimens.	en_US
dc.relation.ispartof	Automation in Construction	en_US
dc.relation.isbasedon	10.1016/j.autcon.2019.102964	en_US
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Building & Construction	en_US
dc.title	Dimensional accuracy, flowability, wettability, and porosity in inkjet 3DP for gypsum and cement mortar materials	en_US
dc.type	Journal Article
utslib.citation.volume	110	en_US
utslib.for	09 Engineering	en_US
utslib.for	12 Built Environment and Design	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CAS - Centre for Autonomous Systems
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	open_access	*
pubs.declined	2019-12-09T16:38:05.201+1100
utslib.copyright.embargo	2022-02-01T00:00:00+1100
pubs.publication-status	Published	en_US
pubs.volume	110	en_US

Abstract:

© 2019 Inkjet (powder-based) 3D Printing is a popular and widely used technology, which can be applied to print a wide range of specimens using different powder materials. This paper discusses the use of inkjet 3DP technology for construction applications using custom-made powder instead of commercial gypsum powder (ZP 151). The paper aims to address the differences between ZP 151 and CP (a custom-made construction-specific cement mortar powder) with regard to powder flowability, wettability, powder bed porosity and apparent porosity in 3DP specimens. An inkjet 3D printer is employed and experimental results verify that ZP 151 has a lower angle of repose, a higher contact angle and noticeably less porosity in the powder bed compared with the CP powder. Additionally, specimens printed with ZP 151 have a lower apparent porosity compared with CP specimens. The wettability for each of the powders was tested using contact angle goniometer, while the Optronis Cam-Recorder was used at 1000 fps at 800 × 600 pixel resolution images for the powder flowability tests. The bulk density tester was utilised to find the apparent porosity in the printed specimens. The paper also discusses the details of the printing procedure and dimensional accuracy of printed specimens.

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http://hdl.handle.net/10453/137173