Simple Floor Nail Placement Technique to Reinforce 3D-Printed Concrete (2025-04)¶

An Experimental Investigation

10.1016/j.jobe.2025.112722

Cao Xiangpeng, Cui Hongzhi
Journal Article - Journal of Building Engineering, No. 112722

Abstract

There are no effective reinforcement methods for 3D-printed concrete structures for field applications. This study proposes a simple technique of placing industrial wide-threaded floor nails between printed layers to reinforce 3D-printed concrete with no complex execution mechanisms. Experiments with various nail densities and arrangement patterns demonstrated that the placed nails achieved 16.9% higher pull-out strength than the inserted nails. Notably, 90°-placed nails significantly enhanced the beam flexural strength with a maximum improvement of 219.7%, whereas 45°-placed nails showed a lower maximum improvement of 44.0%. This floor nail placement technique is practical and field-applicable for 3D-printed concrete reinforcement and establishes an experimental foundation for future optimization.

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BibTeX

@article{cao_cui.2025.SFNPTtR3PC,
  author            = "Xiangpeng Cao and Hongzhi Cui",
  title             = "Simple Floor Nail Placement Technique to Reinforce 3D-Printed Concrete: An Experimental Investigation",
  doi               = "10.1016/j.jobe.2025.112722",
  year              = "2025",
  journal           = "Journal of Building Engineering",
  pages             = "112722",
}

Formatted Citation

IEEE

X. Cao and H. Cui, “Simple Floor Nail Placement Technique to Reinforce 3D-Printed Concrete: An Experimental Investigation”, Journal of Building Engineering, p. 112722, 2025, doi: 10.1016/j.jobe.2025.112722.

CMOS

Cao, Xiangpeng, and Hongzhi Cui. “Simple Floor Nail Placement Technique to Reinforce 3D-Printed Concrete: An Experimental Investigation”. Journal of Building Engineering, 2025, 112722. https://doi.org/10.1016/j.jobe.2025.112722.