3D Concrete Printing - Free Form Geometries with Improved Ductility and Strength

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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 1 × 1 m panel with fibre-reinforced printed concrete, as well as a double curved print bed, reinforced with high strength steel cables.
Original languageEnglish
Title of host publicationSecond RILEM International Conference on Concrete and Digital Fabrication
Subtitle of host publicationDigital Concrete 2020
EditorsFreek Bos, Sandra Lucas, Rob Wolfs, Theo Salet
PublisherSpringer
Pages741-756
Number of pages16
ISBN (Electronic)978-3-030-49916-7
DOIs
Publication statusPublished - 8 Jul 2020
EventSecond RILEM International Conference on Concrete and Digital Fabrication: DIGITAL CONCRETE 2020 - Digital, Eindhoven, Netherlands
Duration: 6 Jul 20208 Jul 2020

Publication series

NameRILEM Bookseries
Volume28
ISSN (Print)2211-0844
ISSN (Electronic)2211-0852

Conference

ConferenceSecond RILEM International Conference on Concrete and Digital Fabrication
CountryNetherlands
CityEindhoven
Period6/07/208/07/20

Keywords

  • 3D concrete printing
  • Fabrication and robotics craft
  • Robotic production

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  • Cite this

    Ahmed, Z. Y., Biffi, A., Hass, L., Bos, F. P., & Salet, T. A. M. (2020). 3D Concrete Printing - Free Form Geometries with Improved Ductility and Strength. In F. Bos, S. Lucas, R. Wolfs, & T. Salet (Eds.), Second RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2020 (pp. 741-756). (RILEM Bookseries; Vol. 28). Springer. https://doi.org/10.1007/978-3-030-49916-7_74