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2022 | OriginalPaper | Chapter

Selected Test Methods for Assessing Fresh and Plastic-State 3D Concrete Printing Materials

Authors : John Temitope Kolawole, Danny De-Becker, Jie Xu, James Dobrzanski, Sergio Cavalaro, Simon Austin, Nicolas Roussel, Richard Buswell

Published in: Third RILEM International Conference on Concrete and Digital Fabrication

Publisher: Springer International Publishing

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Abstract

Materials’ requirements for 3D concrete printing centre around printability and buildability. The concrete must be pumpable, extrudable, yet retain its shape after extrusion (fresh state) and stack over each other without yielding and buckling failure (plastic state). The nature of 3D printed concrete materials has driven research into adapting various test methods to assess these requirements. This study reports selected test methods evaluated for 3DCP in its fresh and plastic state – rheometry, unconfined compression tests, gravity-driven (slug) tests and slow penetration tests. The study further highlights their correlations, applications, and practicality for the two main types of printable materials – enhanced-thixotropic and accelerated-hydration concrete.

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previous chapter Automated Visual Inspection of Near Nozzle Droplet Formation for Quality Control of Additive Manufacturing

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Roussel, N., Buswell, R., Ducoulombier, N., et al.: Assessing the fresh properties of printable cement-based materials: high potential tests for quality control. Cem. Concr. Res. 157, 106800 (2022)CrossRef

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Title: Selected Test Methods for Assessing Fresh and Plastic-State 3D Concrete Printing Materials
Authors: John Temitope Kolawole
Danny De-Becker
Jie Xu
James Dobrzanski
Sergio Cavalaro
Simon Austin
Nicolas Roussel
Richard Buswell
Publisher: Springer International Publishing
Book: Third RILEM International Conference on Concrete and Digital Fabrication
Print ISBN: 978-3-031-06115-8

Electronic ISBN: 978-3-031-06116-5

Copyright Year: 2022
DOI: https://doi.org/10.1007/978-3-031-06116-5_68

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