Flexural Performance of 3D Printed Composite Beams with ECC and Recycled Fine Aggregate Concrete (2023-03)¶

Experimental and Numerical Analysis

10.1016/j.engstruct.2023.115865

Liu Haoran, Xiao Jianzhuang, Ding Tao
Journal Article - Engineering Structures, Vol. 283

Abstract

To overcome the difficulties of placing steel bars in 3D-printed concrete (3DPC), a novel reinforcement method combining engineered cementitious composites (ECC) and recycled fine aggregate concrete (RFAC) was proposed. Experiments on the flexural performance of 3D-printed composite beams with various ECC heights (15, 30, and 45 mm) and shear-span ratios (2.0, 2.5, and 3.0) were carried out. The test results indicated that the beams failed by bending, and the load-bearing capacities with ECC heights of 30 and 45 mm are roughly equivalent to those of the reinforced concrete beams with the longitudinal reinforcement ratios of 0.2%. Subsequently, a finite element model considering printed interfaces was established. The effects of interfacial bond strength, ECC height, and ECC strength on flexural performance were explored through a parametric study. The load-bearing capacity improvement by the increase of ECC height and strength may be limited by the bond strength of the printed interfaces.

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23 References

53 Citations

BibTeX

@article{liu_xiao_ding.2023.FPo3PCBwEaRFAC,
  author            = "Haoran Liu and Jianzhuang Xiao and Tao Ding",
  title             = "Flexural Performance of 3D Printed Composite Beams with ECC and Recycled Fine Aggregate Concrete: Experimental and Numerical Analysis",
  doi               = "10.1016/j.engstruct.2023.115865",
  year              = "2023",
  journal           = "Engineering Structures",
  volume            = "283",
}

Formatted Citation

IEEE

H. Liu, J. Xiao and T. Ding, “Flexural Performance of 3D Printed Composite Beams with ECC and Recycled Fine Aggregate Concrete: Experimental and Numerical Analysis”, Engineering Structures, vol. 283, 2023, doi: 10.1016/j.engstruct.2023.115865.

CMOS

Liu, Haoran, Jianzhuang Xiao, and Tao Ding. “Flexural Performance of 3D Printed Composite Beams with ECC and Recycled Fine Aggregate Concrete: Experimental and Numerical Analysis”. Engineering Structures 283 (2023). https://doi.org/10.1016/j.engstruct.2023.115865.