Characterising Concrete Mixes for 3D Printing (2020-07)¶

10.1007/978-3-030-49916-7_9

Natanzi Atteyeh, McNally Ciaran
Contribution - Proceedings of the 2^nd RILEM International Conference on Concrete and Digital Fabrication, pp. 83-92

Abstract

The construction industry is currently experiencing significant change as building information modeling (BIM), digital design and construction automation are exerting intense pressure on traditional technologies. As an advanced manufacturing technology, three-dimensional (3D) printing has significant potential applications in the construction sector, by utilizing a programmable robotic arm with a nozzle jet, 3D printing can enable us to construct complex concrete structures layer by layer. This new construction technique offers an advanced approach that can potentially accelerate the construction time and improve efficiency. They can work 24/7, even in a hazardous environment while minimising human errors. However, as an advanced cutting-edge technology, there are several remaining challenges to be overcome in comparison to traditional concrete casting, and these include appropriate pumpability, extrudability, buildability, compressive strength and open time for printing concrete. To overcome these challenges this project will investigate the effect of nanoclay to improve the fresh properties of printing concrete. It is considered that by utilizing different amounts of nanoclay and superplasticiser in the mix it will be possible to significantly affect the fresh properties of 3D printed concrete. Printable materials, like any other cementitious materials, flow only when submitted to stresses higher than a critical yield stress. In this project, a shear vane test was used to measure the yield stress of cement-based materials in the lab.

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12 References

12 Citations

BibTeX

@inproceedings{nata_mcna.2020.CCMf3P,
  author            = "Atteyeh S. Natanzi and Ciaran McNally",
  title             = "Characterising Concrete Mixes for 3D Printing",
  doi               = "10.1007/978-3-030-49916-7_9",
  year              = "2020",
  volume            = "28",
  pages             = "83--92",
  booktitle         = "Proceedings of the 2nd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2020",
  editor            = "Freek Paul Bos and Sandra Simaria de Oliveira Lucas and Robert Johannes Maria Wolfs and Theo A. M. Salet",
}

Formatted Citation

IEEE

A. S. Natanzi and C. McNally, “Characterising Concrete Mixes for 3D Printing”, in Proceedings of the 2^nd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2020, 2020, vol. 28, pp. 83–92. doi: 10.1007/978-3-030-49916-7_9.

CMOS

Natanzi, Atteyeh S., and Ciaran McNally. “Characterising Concrete Mixes for 3D Printing”. In Proceedings of the 2^nd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2020, edited by Freek Paul Bos, Sandra Simaria de Oliveira Lucas, Robert Johannes Maria Wolfs, and Theo A. M. Salet, 28:83–92, 2020. https://doi.org/10.1007/978-3-030-49916-7_9.