A three-step development strategy for 3D printable concrete containing coarse aggregates
The use of coarse aggregates in 3D printable concrete (3DPC) reduces the amount of cement. However, it presents challenges for 3D printing process. In this study, a three-step strategy is proposed for the development of 3DPC, containing coarse aggregates with a maximum particle size of 20 mm. This s...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509525003389 |
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| author | Yong Yuan Ruyi Sheng Xupeng Yao Bernhard Pichler Herbert A. Mang Jiao-Long Zhang |
| author_facet | Yong Yuan Ruyi Sheng Xupeng Yao Bernhard Pichler Herbert A. Mang Jiao-Long Zhang |
| author_sort | Yong Yuan |
| collection | DOAJ |
| description | The use of coarse aggregates in 3D printable concrete (3DPC) reduces the amount of cement. However, it presents challenges for 3D printing process. In this study, a three-step strategy is proposed for the development of 3DPC, containing coarse aggregates with a maximum particle size of 20 mm. This strategy integrates all stages of the 3D printing process, categorizing the stages of the concrete into the flow-state stage, the structural build-up stage, and the hardened-state stage. The 3DPC mix ratio is determined on the basis of experimental testing and predictive modeling. Experimental studies are conducted, using the mix ratios obtained from this strategy, followed by trial printing tests. The results indicate the usefulness of the three-step strategy. It is efficient to control the flowability in the flow-state stage and the mechanical properties in the structural build-up stage of 3DPC by adjusting the dosage of polycarboxylate ether superplasticizer and aluminum sulfate-based accelerator. |
| format | Article |
| id | doaj-art-62dcfc0ba897460b8e8d1cc00a6c140c |
| institution | DOAJ |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-62dcfc0ba897460b8e8d1cc00a6c140c2025-08-20T02:41:27ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e0454010.1016/j.cscm.2025.e04540A three-step development strategy for 3D printable concrete containing coarse aggregatesYong Yuan0Ruyi Sheng1Xupeng Yao2Bernhard Pichler3Herbert A. Mang4Jiao-Long Zhang5College of Civil Engineering, Tongji University, 200092 Shanghai, China; State Key Laboratory of Disaster Prevention in Civil Engineering, 200092 Shanghai, ChinaCollege of Civil Engineering, Tongji University, 200092 Shanghai, ChinaCollege of Civil Engineering, Tongji University, 200092 Shanghai, ChinaInstitute of Mechanics for Materials and Structures, TU Wien (Vienna University of Technology), 1040 Vienna, AustriaCollege of Civil Engineering, Tongji University, 200092 Shanghai, China; Institute of Mechanics for Materials and Structures, TU Wien (Vienna University of Technology), 1040 Vienna, AustriaCollege of Civil Engineering, Tongji University, 200092 Shanghai, China; Corresponding author.The use of coarse aggregates in 3D printable concrete (3DPC) reduces the amount of cement. However, it presents challenges for 3D printing process. In this study, a three-step strategy is proposed for the development of 3DPC, containing coarse aggregates with a maximum particle size of 20 mm. This strategy integrates all stages of the 3D printing process, categorizing the stages of the concrete into the flow-state stage, the structural build-up stage, and the hardened-state stage. The 3DPC mix ratio is determined on the basis of experimental testing and predictive modeling. Experimental studies are conducted, using the mix ratios obtained from this strategy, followed by trial printing tests. The results indicate the usefulness of the three-step strategy. It is efficient to control the flowability in the flow-state stage and the mechanical properties in the structural build-up stage of 3DPC by adjusting the dosage of polycarboxylate ether superplasticizer and aluminum sulfate-based accelerator.http://www.sciencedirect.com/science/article/pii/S22145095250033893D printable concreteThree-step development strategyFlowabilityCoarse aggregatesMultiscale model |
| spellingShingle | Yong Yuan Ruyi Sheng Xupeng Yao Bernhard Pichler Herbert A. Mang Jiao-Long Zhang A three-step development strategy for 3D printable concrete containing coarse aggregates Case Studies in Construction Materials 3D printable concrete Three-step development strategy Flowability Coarse aggregates Multiscale model |
| title | A three-step development strategy for 3D printable concrete containing coarse aggregates |
| title_full | A three-step development strategy for 3D printable concrete containing coarse aggregates |
| title_fullStr | A three-step development strategy for 3D printable concrete containing coarse aggregates |
| title_full_unstemmed | A three-step development strategy for 3D printable concrete containing coarse aggregates |
| title_short | A three-step development strategy for 3D printable concrete containing coarse aggregates |
| title_sort | three step development strategy for 3d printable concrete containing coarse aggregates |
| topic | 3D printable concrete Three-step development strategy Flowability Coarse aggregates Multiscale model |
| url | http://www.sciencedirect.com/science/article/pii/S2214509525003389 |
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