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R.Y. Sheng, J.-L. Zhang, Y. Rong, J.-P. Yu, Y. Yuan, "Application of a Multiscale Model for 3D Printed Concrete", in P. Ivanyi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Seventeenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 6, Paper 4.2, 2023, doi:10.4203/ccc.6.4.2

Keywords: 3DPC, hydration degree, compressive strength, continuum micromechanics, multiscale model.

Abstract

3D printing of concrete is a rapidly growing technology in the construction industry because of its numerous benefits such as reducing wastes, improving material efficiency, and increasing design flexibility. Nonetheless, the 3D printing process and mix design can lead to differences in microstructure, which may have significant implications on its macroscopic mechanical properties. To investigate the relationship between microstructure and mechanical behavior, a multiscale model based on continuum micromechanics was applied to predict the mechanical properties of single-layer 3D printed concrete (3DPC). The computational results demonstrate a correlation relationship between the macroscopic mechanical properties and the volume fraction and morphology of the microstructural constitutions of 3DPC. Furthermore, it is found that some kind of external admixtures can alter the mapping between the mechanical properties and the age of 3DPC, while the mapping between its mechanical properties and hydration degree remains unchanged. These findings highlight the importance of understanding the distinct microstructure of 3DPC and the potential of multiscale modeling in term of predicting its mechanical behavior and enhancing the design of 3D printed structures.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 6 PROCEEDINGS OF THE SEVENTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: P. Ivanyi, J. Kruis and B.H.V. Topping Paper 4.2 Application of a Multiscale Model for 3D Printed Concrete R.Y. Sheng¹, J.-L. Zhang¹, Y. Rong², J.-P. Yu² and Y. Yuan¹ ¹Department of Geotechnical Engineering, Tongji University, Shanghai, China ²Jiangxi Transportation Instutute Limited Company, Nanchang, China doi:10.4203/ccc.6.4.2 Full Bibliographic Reference for this paper R.Y. Sheng, J.-L. Zhang, Y. Rong, J.-P. Yu, Y. Yuan, "Application of a Multiscale Model for 3D Printed Concrete", in P. Ivanyi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Seventeenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 6, Paper 4.2, 2023, doi:10.4203/ccc.6.4.2 Keywords: 3DPC, hydration degree, compressive strength, continuum micromechanics, multiscale model. Abstract 3D printing of concrete is a rapidly growing technology in the construction industry because of its numerous benefits such as reducing wastes, improving material efficiency, and increasing design flexibility. Nonetheless, the 3D printing process and mix design can lead to differences in microstructure, which may have significant implications on its macroscopic mechanical properties. To investigate the relationship between microstructure and mechanical behavior, a multiscale model based on continuum micromechanics was applied to predict the mechanical properties of single-layer 3D printed concrete (3DPC). The computational results demonstrate a correlation relationship between the macroscopic mechanical properties and the volume fraction and morphology of the microstructural constitutions of 3DPC. Furthermore, it is found that some kind of external admixtures can alter the mapping between the mechanical properties and the age of 3DPC, while the mapping between its mechanical properties and hydration degree remains unchanged. These findings highlight the importance of understanding the distinct microstructure of 3DPC and the potential of multiscale modeling in term of predicting its mechanical behavior and enhancing the design of 3D printed structures. download the full-text of this paper (PDF, 8 pages, 1281 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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