Effect of Different Grade Levels of Calcined Clays on Fresh and Hardened Properties of Ternary-Blended Cementitious Materials for 3D Printing (2020-07)¶

10.1016/j.cemconcomp.2020.103708

Chen Yu, Rodríguez Claudia, Li Zhenming, Chen Boyu, Çopuroğlu Oğuzhan, Schlangen Erik
Journal Article - Cement and Concrete Composites, Vol. 114

Abstract

This study aims to investigate the influences of different grades of calcined clay on 3D printability, compressive strength (7 days), and hydration of limestone and calcined clay-based cementitious materials. Calcined clays that contained various amounts of metakaolin were achieved by blending low-grade calcined clay (LGCC) and highgrade calcined clay (HGCC) in three different proportions. The results revealed that increasing the HGCC% ranging from 0 wt% to 50 wt% in calcined clay could: (1) increase the flow consistency; (2) impressively improve the buildability, and reduce the printability window of the fresh mixtures; (3) enhance and accelerate the cement hydration. However, increasing HGCC% led to an increase of air void content in the interface region of the printed sample, which weakened the compressive strength of the printed sample at 7 days. Besides, it confirmed that the cold-joint/weak interface was easily formed by using the fresh mixture with a high structuration rate.

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41 References

94 Citations

BibTeX

@article{chen_rodr_li_chen.2020.EoDGLoCCoFaHPoTBCMf3P,
  author            = "Yu Chen and Claudia Romero Rodríguez and Zhenming Li and Boyu Chen and Oğuzhan Çopuroğlu and Erik Schlangen",
  title             = "Effect of Different Grade Levels of Calcined Clays on Fresh and Hardened Properties of Ternary-Blended Cementitious Materials for 3D Printing",
  doi               = "10.1016/j.cemconcomp.2020.103708",
  year              = "2020",
  journal           = "Cement and Concrete Composites",
  volume            = "114",
}

Formatted Citation

IEEE

Y. Chen, C. R. Rodríguez, Z. Li, B. Chen, O. Çopuroğlu and E. Schlangen, “Effect of Different Grade Levels of Calcined Clays on Fresh and Hardened Properties of Ternary-Blended Cementitious Materials for 3D Printing”, Cement and Concrete Composites, vol. 114, 2020, doi: 10.1016/j.cemconcomp.2020.103708.

CMOS

Chen, Yu, Claudia Romero Rodríguez, Zhenming Li, Boyu Chen, Oğuzhan Çopuroğlu, and Erik Schlangen. “Effect of Different Grade Levels of Calcined Clays on Fresh and Hardened Properties of Ternary-Blended Cementitious Materials for 3D Printing”. Cement and Concrete Composites 114 (2020). https://doi.org/10.1016/j.cemconcomp.2020.103708.