Skip to content

Fundamental Study on Automated Inter-Layer Reinforcing System with Metal-Fiber-Insertion for 3D Concrete Printer (2022-06)

10.1007/978-3-031-06116-5_61

Asakawa Tomoya,  Nishiwaki Tomoya, Ohno Kazunori, Yokoyama Shigeru, Okada Yoshito, Kojima Shotaro, Satake Youichi, Miyata Yoshihiro, Miyazawa Yuki, Ito Youhei, Kajita Hideyuki
Contribution - Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication, pp. 411-416

Abstract

In recent years, 3D concrete printing (3DCP) systems have been extensively developed in the construction field as a promising new technology. In particular, additive manufacturing (AM) systems using mortar are among the most promising methods. 3DCP has great advantages such as labor work saving at labor-intensive construction sites and creating complex-shaped members with high accuracy that are difficult to create using conventional construction methods. However, printed members using AM-based 3DCP systems inevitably include discontinuous interlayers, such as cold joints of concrete structures. The presence of such defects causes strength degradation in printed structures. In addition, it is challenging to introduce reinforcing steel bars as in general RC structures for AM-based 3DCP systems. Therefore, it is necessary to overcome the defects in the interlayers using new reinforcement methods. In this study, a fundamental investigation was conducted to develop an automatic reinforcing system suitable for AM-based laminate structures by metallic fiber insertion at the interlayers. A prototype automatic metallic fiber insertion system was established. Specimens were obtained and subjected to mechanical tests to confirm the reinforcing effect of metallic fibers. In addition, the interior of the specimen was measured by X-ray CT. It was confirmed that the reinforcing effect of metallic fibers enhanced the mechanical properties of the printed specimens.

7 References

  1. Bos Freek, Ahmed Zeeshan, Jutinov Evgeniy, Salet Theo (2017-11)
    Experimental Exploration of Metal-Cable as Reinforcement in 3D Printed Concrete
  2. Bos Freek, Bosco Emanuela, Salet Theo (2018-11)
    Ductility of 3D Printed Concrete Reinforced with Short Straight Steel-Fibers
  3. Hass Lauri, Bos Freek (2020-07)
    Bending and Pull-Out Tests on a Novel Screw Type Reinforcement for Extrusion-Based 3D Printed Concrete
  4. Mechtcherine Viktor, Grafe Jasmin, Nerella Venkatesh, Spaniol Erik et al. (2018-05)
    3D Printed Steel-Reinforcement for Digital Concrete Construction:
    Manufacture, Mechanical Properties and Bond Behavior
  5. Nishiwaki Tomoya, Miyata Yoshihiro, Furue Shoko, Fukatsu Shiko et al. (2021-11)
    Reinforcing Interlayers of Three-Dimensional-Printed Mortar Using Metal-Fiber-Insertion
  6. Perrot Arnaud, Jacquet Yohan, Rangeard Damien, Courteille Eric et al. (2020-03)
    Nailing of Layers:
    A Promising Way to Reinforce Concrete 3D Printing Structures
  7. Wangler Timothy, Roussel Nicolas, Bos Freek, Salet Theo et al. (2019-06)
    Digital Concrete:
    A Review

4 Citations

  1. Kobayashi Noriyuki, Asakawa Tomoya, Nishiwaki Tomoya, Egawa Ryo et al. (2024-09)
    An Automated Pin Insertion Method for 3DCP and Its Reinforcement Effects on Beam Specimens
  2. Tasaki Haruto, Asakawa Tomoya, Kobayashi Noriyuki, Nishiwaki Tomoya et al. (2024-09)
    A Direction-Independent Reinforcement by Combination of Fiber-Reinforced Cementitious Composite and Automated Pin Insertion
  3. Li Yeou-Fong, Tsai Pei-Jen, Syu Jin-Yuan, Lok Man-Hoi et al. (2023-12)
    Mechanical Properties of 3D Printed Carbon Fiber-Reinforced Cement Mortar
  4. Kulkarni Omkar, Thakur Manideep, Kamakshi Tippabhotla, Paritala Spandana et al. (2023-09)
    Evaluation of Tensile Behavior of 3D Printed Concrete Assemblies with Reinforcement

BibTeX 
@inproceedings{asak_nish_ohno_yoko.2022.FSoAILRSwMFIf3CP,
  author            = "Tomoya Asakawa and Tomoya Nishiwaki and Kazunori Ohno and Shigeru Yokoyama and Yoshito Okada and Shotaro Kojima and Youichi Satake and Yoshihiro Miyata and Yuki Miyazawa and Youhei Ito and Hideyuki Kajita",
  title             = "Fundamental Study on Automated Inter-Layer Reinforcing System with Metal-Fiber-Insertion for 3D Concrete Printer",
  doi               = "10.1007/978-3-031-06116-5_61",
  year              = "2022",
  volume            = "37",
  pages             = "411--416",
  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

T. Asakawa, “Fundamental Study on Automated Inter-Layer Reinforcing System with Metal-Fiber-Insertion for 3D Concrete Printer”, in Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2022, 2022, vol. 37, pp. 411–416. doi: 10.1007/978-3-031-06116-5_61.

Asakawa, Tomoya, Tomoya Nishiwaki, Kazunori Ohno, Shigeru Yokoyama, Yoshito Okada, Shotaro Kojima, Youichi Satake, et al.. “Fundamental Study on Automated Inter-Layer Reinforcing System with Metal-Fiber-Insertion for 3D Concrete Printer”. 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, 37:411–16, 2022. https://doi.org/10.1007/978-3-031-06116-5_61.