Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hardened properties and durability of large-scale 3D printed cement-based materials
This study systematically investigates the hardened properties, durability and void distribution of large-scale 3D printed cement-based materials (3DPC). Experimental results indicate that 3DPC has higher compressive and flexural strengths, lower drying shrinkage, better resistance against sulfate attack and carbonation than mold-cast cement-based materials, but lower resistance to frost damage and chloride ion penetration. Computed tomography scanning reveals that voids in 3DPC are strongly oriented along the printing direction. Furthermore, the voids are much more inter-connected and even continuous among the printed filaments. This unique void distribution is the origin of anisotropy for 3DPC and can explain the determined directional dependency of mechanical strengths and durability performance. Along the printing direction, the more connected voids render more channels for gas and liquid to penetrate into 3DPC.
Hardened properties and durability of large-scale 3D printed cement-based materials
This study systematically investigates the hardened properties, durability and void distribution of large-scale 3D printed cement-based materials (3DPC). Experimental results indicate that 3DPC has higher compressive and flexural strengths, lower drying shrinkage, better resistance against sulfate attack and carbonation than mold-cast cement-based materials, but lower resistance to frost damage and chloride ion penetration. Computed tomography scanning reveals that voids in 3DPC are strongly oriented along the printing direction. Furthermore, the voids are much more inter-connected and even continuous among the printed filaments. This unique void distribution is the origin of anisotropy for 3DPC and can explain the determined directional dependency of mechanical strengths and durability performance. Along the printing direction, the more connected voids render more channels for gas and liquid to penetrate into 3DPC.
Hardened properties and durability of large-scale 3D printed cement-based materials
Mater Struct
Zhang, Yu (Autor:in) / Zhang, Yunsheng (Autor:in) / Yang, Lin (Autor:in) / Liu, Guojian (Autor:in) / Chen, Yidong (Autor:in) / Yu, Shiwei (Autor:in) / Du, Hongjian (Autor:in)
01.02.2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Hardened properties and durability of large-scale 3D printed cement-based materials
| Online Contents | 2021
Correction to: Hardened properties and durability of large-scale 3D printed cement-based materials
| Online Contents | 2022
Correction to: Hardened properties and durability of large-scale 3D printed cement-based materials
| Springer Verlag | 2022
Properties and Testing of Printed Cement-Based Materials in Hardened State
| Springer Verlag | 2022
IMPREGNATION-TYPE DURABILITY-IMPROVING AGENT FOR HARDENED CEMENT BODY
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