Mechanical Properties of 3D Printed Concrete with 2D Infill Patterns Including Print Path Crossings (2025-05)¶

10.1016/j.conbuildmat.2025.141764

Zhang Bo, Tao Yaxin, Zhang Yi, Shields Yasmina, de Corte Wouter, Wan-Wendner Roman
Journal Article - Construction and Building Materials, Vol. 483, No. 141764

Abstract

Infill patterns have been employed to optimize structural design, with the mechanical properties at the intersections within the pattern being crucial to its overall performance. This study investigates the impact of print path crossings in infill patterns on the mechanical properties of printed samples. Firstly, prisms and small cubic domains cut from printed single crosses are subjected to bending and uniaxial compression tests. Subsequently, large specimens featuring selected print path crossing strategies are printed and tested in compression. Crosses can be formed by an intersection between two orthogonal layers, a next layer "riding" on the last previous layer (C), or by sideways contacts between two orthogonal layers at turns (HC or H). Compression tests on smaller specimens containing only the cross indicate that deformations are influenced by both the mechanical properties of the crosses and the matrix. For specimens with 21.5 mm layer widths, the relationship between infill density and compressive strength is approximately linear. However, this linearity breaks down in specimens with 14 mm layer widths. The reason is that in large specimens incorporating an infill pattern, the effective compressive strength versus infill density relationship exhibits significant nonlinearities compared to the anticipated linear trend. This deviation arises from buckling caused by the separation of individual structural components at cross junctions during loading. Conversely, the relationship between infill density and elastic modulus is nearly linear.

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36 References

1 Citations

Tarhan İsmail, Tarhan Yeşim (2025-09)
Nonlinear In-Plane Response of 3D-Printed Concrete Walls with Varied Infill Patterns:
Experimental Mix Design and Numerical Structural Assessment

BibTeX

@article{zhan_tao_zhan_shie.2025.MPo3PCw2IPIPPC,
  author            = "Bo Zhang and Yaxin Tao and Yi Zhang and Yasmina Shields and Wouter de Corte and Roman Wan-Wendner",
  title             = "Mechanical Properties of 3D Printed Concrete with 2D Infill Patterns Including Print Path Crossings",
  doi               = "10.1016/j.conbuildmat.2025.141764",
  year              = "2025",
  journal           = "Construction and Building Materials",
  volume            = "483",
  pages             = "141764",
}

Formatted Citation

IEEE

B. Zhang, Y. Tao, Y. Zhang, Y. Shields, W. de Corte and R. Wan-Wendner, “Mechanical Properties of 3D Printed Concrete with 2D Infill Patterns Including Print Path Crossings”, Construction and Building Materials, vol. 483, p. 141764, 2025, doi: 10.1016/j.conbuildmat.2025.141764.

CMOS

Zhang, Bo, Yaxin Tao, Yi Zhang, Yasmina Shields, Wouter de Corte, and Roman Wan-Wendner. “Mechanical Properties of 3D Printed Concrete with 2D Infill Patterns Including Print Path Crossings”. Construction and Building Materials 483 (2025): 141764. https://doi.org/10.1016/j.conbuildmat.2025.141764.