3D Concrete Printing (2020-07)¶

Free-Form Geometries with Improved Ductility and Strength

Ahmed Zeeshan, Biffi Alessia, Hass Lauri, Bos Freek, Salet Theo
Contribution - Proceedings of the 2^nd RILEM International Conference on Concrete and Digital Fabrication, pp. 741-756

Abstract

Additive manufacturing (AM) or 3D printing is a rapid prototyping process that has captured the attention of architects and designers worldwide in the last few years. Multiple research groups and commercial entities are exploring different areas of 3D concrete printing (3DCP) with one of the main topics being the potential to improve the design freedom, while simultaneously achieving sufficient structural ductility. Based on the target design impression of a free form 3DCP structure, this study presents a number of 3DCP strategies to print arbitrary double-curved geometries with improved concrete ductility. A digital design-to-fabrication workflow was applied, consisting of defining parameters at various stages of the process. Two case study objects have been printed, both featuring double-curved surfaces achieved through cantilevered printing with support material, and by printing on a curved support surface, respectively. The former object acted as support for the latter. Entrained cables and secondarily added glass fibres were used to obtain ductility. The result is a double-curved 11 m panel with fibre-reinforced printed concrete, as well as a double curved print bed, reinforced with high strength steel cables.

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22 References

10 Citations

BibTeX

@inproceedings{ahme_biff_hass_bos.2020.3CP,
  author            = "Zeeshan Yunus Ahmed and Alessia Biffi and Lauri Hass and Freek Paul Bos and Theo A. M. Salet",
  title             = "3D Concrete Printing: Free-Form Geometries with Improved Ductility and Strength",
  doi               = "10.1007/978-3-030-49916-7_74",
  year              = "2020",
  volume            = "28",
  pages             = "741--756",
  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

Z. Y. Ahmed, A. Biffi, L. Hass, F. P. Bos and T. A. M. Salet, “3D Concrete Printing: Free-Form Geometries with Improved Ductility and Strength”, in Proceedings of the 2^nd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2020, 2020, vol. 28, pp. 741–756. doi: 10.1007/978-3-030-49916-7_74.

CMOS

Ahmed, Zeeshan Yunus, Alessia Biffi, Lauri Hass, Freek Paul Bos, and Theo A. M. Salet. “3D Concrete Printing: Free-Form Geometries with Improved Ductility and Strength”. 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, 28:741–56, 2020. https://doi.org/10.1007/978-3-030-49916-7_74.