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Title: 3D printable high performance fiber reinforced cementitious composites for large-scale printing
Authors: He, Lewei
Qian, Shunzhi
Weng, Yiwei
Li, Mingyang
Tan, Ming Jen
Keywords: Fiber Reinforced Cementitious Materials
DRNTU::Engineering::Mechanical engineering::Prototyping
3D Printing
Issue Date: 2018
Source: Weng, Y., Qian, S., He, L., Li, M., & Tan, M. J. (2018). 3D printable high performance fiber reinforced cementitious composites for large-scale printing. Proceedings of the 3rd International Conference on Progress in Additive Manufacturing (Pro-AM 2018), 19-24. doi:10.25341/D4B591
Abstract: 3D printing cementitious composites require special rheological properties, which are affected significantly by the materials constituents. In this work, a novel mixture of 3D printable fiber reinforced cementitious composites (3DPFRCC) was developed. The rheological performance, settingtime, and mechanical properties were characterized, a printing test was carried out as well to test the buildability and pumpability. Results indicate that the new material possesses appropriate rheological and mechanical performances. Rheological properties are designed based on previous practical printing test. The static and dynamic yield stress are 3289 Pa and 314.7 Pa, respectively. The plasticity viscosity is 32.5 Pa·s. The initial setting time is 59.2 minutes. The flexural strength and compressive strength are 8.6 MPa and 71.2 MPa, respectively at 28 days. Then, a 78 × 60 × 90 cm (L × W × H) structure was printed successfully in 150 minutes, which demonstrates that this novel 3DPFRCC possesses excellent buildability and pumpability, which is capable of large-scale printing.
Rights: © 2018 Nanyang Technological University. Published by Nanyang Technological University, Singapore.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:Pro-AM Conference Papers

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