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Feasibility of Using Ultra-High-Ductile Concrete to Print Self-Reinforced Hollow Structures (2022-06)

10.1007/978-3-031-06116-5_20

 Ye Junhong,  Weng Yiwei,  Du Hongjian,  Li Mingyang, Yu Jiangtao,  Uddin Md
Contribution - Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication, pp. 133-138

Abstract

3D concrete printing (3DCP) is facing the challenge of introducing steel reinforcement. Using ultra-high ductile concrete (UHDC) to print selfreinforced structures is a potential method to address the challenge. However, few researches have been conducted in this area. This work aims to demonstrate the feasibility of using UHDC to print self-reinforced structures with hollow sections. 6 different hollowbeamswithout steel reinforcement were printed and tested under four-point loading. The results indicate that the printed beams with hollow sections have multiple cracking, flexural hardening, and ductile failure mode despite the absence of steel reinforcement. The flexural strength of hollow beams ranged from 6.06 MPa to 7.86 MPa. The deflection to span ratio of all printed beams was higher than 1/50 at the ultimate state. The combination of UHDC and hollow structures provides a new concept for 3DCP without steel reinforcement.

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BibTeX 
@inproceedings{ye_weng_du_li.2022.FoUUHDCtPSRHS,
  author            = "Junhong Ye and Yiwei Weng and Hongjian Du and Mingyang Li and Jiangtao Yu and Md Nasir Uddin",
  title             = "Feasibility of Using Ultra-High-Ductile Concrete to Print Self-Reinforced Hollow Structures",
  doi               = "10.1007/978-3-031-06116-5_20",
  year              = "2022",
  volume            = "37",
  pages             = "133--138",
  booktitle         = "Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2022",
  editor            = "Richard A. Buswell and Ana Blanco and Sergio Cavalaro and Peter Kinnell",
}
Formatted Citation

J. Ye, Y. Weng, H. Du, M. Li, J. Yu and M. N. Uddin, “Feasibility of Using Ultra-High-Ductile Concrete to Print Self-Reinforced Hollow Structures”, in Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2022, 2022, vol. 37, pp. 133–138. doi: 10.1007/978-3-031-06116-5_20.

Ye, Junhong, Yiwei Weng, Hongjian Du, Mingyang Li, Jiangtao Yu, and Md Nasir Uddin. “Feasibility of Using Ultra-High-Ductile Concrete to Print Self-Reinforced Hollow Structures”. In Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2022, edited by Richard A. Buswell, Ana Blanco, Sergio Cavalaro, and Peter Kinnell, 37:133–38, 2022. https://doi.org/10.1007/978-3-031-06116-5_20.