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Clarification of Fracture Behaviour of RC Pillar with 3D Concrete Printing Buried Formwork Based on Elastic Wave Technique (2025-05)

10.2749/tokyo.2025.2762

Asaue Hisafumi,  Shiotani Tomoki, Okude Nobuhiro,  Ogura Hiroki, Yamamoto Yujin, Kinomura Koji
Contribution - Proceedings of the 2025 IABSE Symposium, pp. 2762-2769

Abstract

Three-dimensional concrete printing (3DCP) offers reduced construction time and workforce needs, addressing labour shortages caused by aging populations. However, its structural optimization and durability remain under-researched. This study examines the fracture behaviour of RC pillars, comparing conventional formwork (case 1) with 3DCP buried formwork, varying short-fiber volume ratios to 1% (case 2) and 2% (case 3). Cyclic loading tests and non-destructive tastings, such as Acoustic Emission method, Elastic wave tomography, Surface wave tomography, and Ultrasonic Pulse-echo method, were used to visualize internal damage progression. Results showed 3DCP buried formwork enhances fracture suppression through its confinement effect, highlighting both time efficiency and structural advantages.

1 References

  1. Zhu Binrong, Nematollahi Behzad, Pan Jinlong, Zhang Yang et al. (2021-04)
    3D Concrete Printing of Permanent Formwork for Concrete Column Construction

0 Citations

BibTeX 
@inproceedings{asau_shio_okud_ogur.2025.CoFBoRPw3CPBFBoEWT,
  author            = "Hisafumi Asaue and Tomoki Shiotani and Nobuhiro Okude and Hiroki Ogura and Yujin Yamamoto and Koji Kinomura",
  title             = "Clarification of Fracture Behaviour of RC Pillar with 3D Concrete Printing Buried Formwork Based on Elastic Wave Technique",
  doi               = "10.2749/tokyo.2025.2762",
  year              = "2025",
  pages             = "2762--2769",
  booktitle         = "Proceedings of the 2025 IABSE Symposium: Environmentally Friendly Technologies and Structures",
  editor            = "International Association for Bridge and Structural Engineering",
}
Formatted Citation

H. Asaue, T. Shiotani, N. Okude, H. Ogura, Y. Yamamoto and K. Kinomura, “Clarification of Fracture Behaviour of RC Pillar with 3D Concrete Printing Buried Formwork Based on Elastic Wave Technique”, in Proceedings of the 2025 IABSE Symposium: Environmentally Friendly Technologies and Structures, 2025, pp. 2762–2769. doi: 10.2749/tokyo.2025.2762.

Asaue, Hisafumi, Tomoki Shiotani, Nobuhiro Okude, Hiroki Ogura, Yujin Yamamoto, and Koji Kinomura. “Clarification of Fracture Behaviour of RC Pillar with 3D Concrete Printing Buried Formwork Based on Elastic Wave Technique”. In Proceedings of the 2025 IABSE Symposium: Environmentally Friendly Technologies and Structures, edited by International Association for Bridge and Structural Engineering, 2762–69, 2025. https://doi.org/10.2749/tokyo.2025.2762.