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Effect of Roughness and Adhesive on the Strength of Concrete-to-Concrete Interfaces Cast from 3D Printed Prefabricated Plastic Formworks (2023-01)

10.1016/j.conbuildmat.2023.130423

 Zhao Kang,  Hu Zhongjun, Wang Boxin, Li Quanheng, Xu Yan
Journal Article - Construction and Building Materials, Vol. 368

Abstract

Increasing interface roughness and using adhesives are two effective methods to improve the bond strength of the concrete-to-concrete interface. In this paper, the influences of interface roughness and adhesives on the splitting tensile strength, bi-surface shear strength, and slant shear strength of the concrete-to-concrete interface were quantitatively studied for 180 specimens. In order to accurately evaluate the bond strength of different adhesives, the repeatable interface roughness specimens were prepared by casting concrete. The roughness of the concrete interface was manufactured based on 3D printing technology and described by the concept of fractal dimension. Test results indicate that the splitting tensile strength and bi-surface shear strength have a good linear correlation with the concrete interfacial fractal dimension. Compared to the slant shear test, adhesives can obtain a better bond performance in the splitting tensile and bi-surface shear tests. Different types of adhesives have different bond effects, while epoxy resin presents the highest bond strength no matter in splitting tensile, bi-surface shear, or slant shear tests.

2 References

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4 Citations

  1. Lan Tian, Yang Shutong, Xu Mingqi, Chen Zhengyuan et al. (2024-10)
    Quantitative Assessment of Interfacial-Fracture-Properties in 3D Printed Alkali-Activated Recycled Sand Concrete Based on a Closed-Form Fracture-Model
  2. Ibrahim Kamoru, Zijl Gideon, Babafemi Adewumi (2024-04)
    Mitigation of Lack-of-Fusion in 3D Printed Limestone-Calcined-Clay-Cement Concrete Induced by Effective Micro-Organisms
  3. Wang Yang, Qiu Liu-Chao, Hu Yan-Ye, Cheng Song-Gui et al. (2023-08)
    Influential Factors on Mechanical Properties and Microscopic Characteristics of Underwater 3D Printing Concrete
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    3D Printed Concrete Permanent Formwork:
    Effect of Post-Cast Concrete Proportion on Interface Bonding

BibTeX 
@article{zhao_hu_wang_li.2023.EoRaAotSoCtCICf3PPPF,
  author            = "Kang Zhao and Zhongjun Hu and Boxin Wang and Quanheng Li and Yan Xu",
  title             = "Effect of Roughness and Adhesive on the Strength of Concrete-to-Concrete Interfaces Cast from 3D Printed Prefabricated Plastic Formworks",
  doi               = "10.1016/j.conbuildmat.2023.130423",
  year              = "2023",
  journal           = "Construction and Building Materials",
  volume            = "368",
}
Formatted Citation

K. Zhao, Z. Hu, B. Wang, Q. Li and Y. Xu, “Effect of Roughness and Adhesive on the Strength of Concrete-to-Concrete Interfaces Cast from 3D Printed Prefabricated Plastic Formworks”, Construction and Building Materials, vol. 368, 2023, doi: 10.1016/j.conbuildmat.2023.130423.

Zhao, Kang, Zhongjun Hu, Boxin Wang, Quanheng Li, and Yan Xu. “Effect of Roughness and Adhesive on the Strength of Concrete-to-Concrete Interfaces Cast from 3D Printed Prefabricated Plastic Formworks”. Construction and Building Materials 368 (2023). https://doi.org/10.1016/j.conbuildmat.2023.130423.