Determining Printable Zone of Three-Dimensional-Printable Mortar Using Flow Table Tests
In this study, 12 mortar mixtures were designed to have different flow properties using a highly flowable, rapid-set crack repair grout (CRG) for cement replacements and different water-binder ratios (w/b). Their flowability was measured using flow table tests at 0, 40, and 60 minutes after mortar mixing, corresponding to the time spent on different three-dimensional (3D) printing stages (feeding, printer setup/pre-printing, and actual printing). Feedability of all mortar mixtures and the extrudability, buildability, and printing quality of the printable mixtures were evaluated qualitatively. A printable zone was developed based on these results, and it was expressed in terms of initial (D0) and final (D25) diameters. This printable zone was then used to adjust the flow properties of a different mixture proportion containing river sand (RS). It was verified that the object printed with the mixture that met the printable zone criteria was easy to print and showed very good printing quality.
- Record URL:
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/13846872
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Supplemental Notes:
- Abstract reprinted with permission from the American Concrete Institute.
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Authors:
- Wi, Kwangwoo
- Hong, Jinxiang
- Wang, Kejin
- Publication Date: 2021-11
Language
- English
Media Info
- Media Type: Web
- Pagination: pp 75-85
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Serial:
- ACI Materials Journal
- Volume: 118
- Issue Number: 6
- Publisher: American Concrete Institute (ACI)
- ISSN: 0889-325X
- Serial URL: https://www.concrete.org/publications/acimaterialsjournal.aspx
Subject/Index Terms
- TRT Terms: Flow; Grout; Mortar; Quality control; Sand; Three dimensional printing
- Subject Areas: Highways; Materials;
Filing Info
- Accession Number: 01851724
- Record Type: Publication
- Files: TRIS
- Created Date: Jul 18 2022 11:25AM