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Title: | A review of 3D printing low-carbon concrete with one-part geopolymer: Engineering, environmental and economic feasibility |
Authors: | Al-Noaimat, YA Ghaffar, SH Chougan, M Al-Kheetan, MJ |
Keywords: | 3D printing;one-part geopolymers;solid activator;fresh properties;hardened properties;environmental impact;cost assessment |
Issue Date: | 30-Dec-2022 |
Publisher: | Elsevier |
Citation: | Al-Noaimat, Y.A. et al. (2023) 'A review of 3D printing low-carbon concrete with one-part geopolymer: Engineering, environmental and economic feasibility', Case Studies in Construction Materials, 18, e01818, pp. 1 - 19. doi: 10.1016/j.cscm.2022.e01818. |
Abstract: | Copyright The Author(s) © 2022. 3D printing is a developing technology that has the ability to use different materials to produce concrete elements with complex shapes. The utilization of geopolymers or alkali-activated materials (AAMs) in 3D printing is receiving significant interest due to the environmental benefits of replacing ordinary Portland cement (OPC). The use of solid activators to produce a one-part geopolymer can help the broader use of geopolymers at large scales, as the corrosive, viscous, and hazardous liquid activators used in two-part geopolymers do not present a feasible large-scale solution for this technology. This paper reviews the 3D printable one-part geopolymers, their compositions, and the effect of different precursor compositions, activator content, and different admixtures on the fresh and hardened properties of the mixtures. The environmental impact and cost assessment of one-part geopolymers produced by conventional and 3D printing methods are also discussed and compared to OPC and two-part geopolymers. This review concluded that one-part geopolymers are easier to mix and use than two-part geopolymers and have a lower carbon footprint than two-part geopolymers and OPC concrete. However, one-part geopolymers may not be as strong as two-part geopolymers, but they are still better than OPC. |
Description: | Data Availability: Data will be made available on request. |
URI: | https://bura.brunel.ac.uk/handle/2438/26157 |
DOI: | https://doi.org/10.1016/j.cscm.2022.e01818 |
Other Identifiers: | ORCID iD: Seyed Hamidreza Ghaffar https://orcid.org/0000-0002-4694-9508 ORCID iD: Mehdi Chougan https://orcid.org/0000-0002-7851-8665 e01818 |
Appears in Collections: | Dept of Civil and Environmental Engineering Research Papers |
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FullText.pdf | Crown Copyright © 2022. Published by Elsevier Ltd. This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/). | 4.29 MB | Adobe PDF | View/Open |
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