Development of 3D Printed Heavyweight Concrete Containing Magnetite-Aggregate (2023-08)¶

10.1016/j.matdes.2023.112246

Federowicz Karol, Techman Mateusz, Skibicki Szymon, Chougan Mehdi, el Khayatt Ahmed, Saudi H., Błyszko Jarosław, abd Elrahman Mohamed, Chung Sang-Yeop, Sikora Paweł
Journal Article - Materials & Design, Vol. 233, No. 112246

Abstract

The main objective of this study is to develop 3D printed heavyweight concrete (3DPHWC) to produce elements with a dry density of up to 3500 kg/m3 by replacing natural aggregate (SA) with magnetite aggregate (MA) up to 100%. A comprehensive systematic study was conducted to thoroughly assess mixtures’ mechanical properties, physical proficiency, fresh properties, and printing qualities. The inclusion of MA exhibited the desired fresh properties required for 3D printing and promising physical and mechanical properties. Evaluation of the mechanical properties of designed 3DPHWC indicates that replacing SA with MA increases both cast and printed samples’ strengths. The 3D printed M100 sample achieved higher 28 days flexural and compressive strengths by 18 % and 20 %, respectively, compared to printed control mix (M0). Micro-CT study correspondingly demonstrated improvements in the composites’ porosity, pore size, and pore morphologies. The linear attenuation coefficients (LACs) and half-value layer (HVLs) for slow neutron and gamma-ray were measured to assess radiation shielding characteristics. A significant performance improvement was obtained for slow neutrons by introducing the magnetite aggregate. Unlike slow neutrons, no significant difference was observed between cast and printed samples against γ-rays. Moreover, the effect of porosity on the shielding performance was discussed.

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24 References

9 Citations

BibTeX

@article{fede_tech_skib_chou.2023.Do3PHCCMA,
  author            = "Karol Federowicz and Mateusz Techman and Szymon Skibicki and Mehdi Chougan and Ahmed M. El Khayatt and H. A. Saudi and Jarosław Błyszko and Mohamed Abd Elrahman and Sang-Yeop Chung and Paweł Sikora",
  title             = "Development of 3D Printed Heavyweight Concrete Containing Magnetite-Aggregate",
  doi               = "10.1016/j.matdes.2023.112246",
  year              = "2023",
  journal           = "Materials & Design",
  volume            = "233",
  pages             = "112246",
}

Formatted Citation

IEEE

K. Federowicz, “Development of 3D Printed Heavyweight Concrete Containing Magnetite-Aggregate”, Materials & Design, vol. 233, p. 112246, 2023, doi: 10.1016/j.matdes.2023.112246.

CMOS

Federowicz, Karol, Mateusz Techman, Szymon Skibicki, Mehdi Chougan, Ahmed M. El Khayatt, H. A. Saudi, Jarosław Błyszko, Mohamed Abd Elrahman, Sang-Yeop Chung, and Paweł Sikora. “Development of 3D Printed Heavyweight Concrete Containing Magnetite-Aggregate”. Materials & Design 233 (2023): 112246. https://doi.org/10.1016/j.matdes.2023.112246.