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Flow-Based Pultrusion of Anisotropic Concrete (2022-06)

Mechanical Properties at Hardened State

10.1007/978-3-031-06116-5_57

 Demont Léo, Charrier Malo,  Margerit Pierre,  Ducoulombier Nicolas,  Mesnil Romain,  Caron Jean-François
Contribution - Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication, pp. 385-390

Abstract

The issue of reinforcement for 3D concrete printing has received considerable attention, as constructions have to comply with reliability principles and building standards. Here a specific process called Flow-Based Pultrusion for additive manufacturing (FBP), inspired by pultruded composite manufacturing and built on existing extrusion-based 3D printing technology, permits to impregnate numerous continuous fiber rovings pulled by the extrusion flowofa fine mortar [4]. The resulting extruded material, an Anisotropic Concrete, is isotropic transverse like unidirectional long fibers composite. The mechanical properties are greatly influenced by the quantity of fibres (reinforcement ratio) and their impregnation quality [2]. These factors are related to the process parameters [3], the mortar rheology for impregnation and the fibre dosage (roving thickness, roving count) for reinforcement ratio. Full-scale experiments are presented, using fibre rovings to increase the reinforcement ratio up to 3%, which is comparable to the steel/concrete ratios in traditional rebarreinforced concrete elements. The influence of reinforcement ratio on the tensile strength and ductility of the hardened material is presented.

5 References

  1. Bos Freek, Dezaire Steven, Ahmed Zeeshan, Hoekstra Anne et al. (2020-07)
    Bond of Reinforcement-Cable in 3D Printed Concrete
  2. Caron Jean-François, Demont Léo, Ducoulombier Nicolas, Mesnil Romain (2021-06)
    3D Printing of Mortar with Continuous Fibers:
    Principle, Properties and Potential for Application
  3. Demont Léo, Ducoulombier Nicolas, Mesnil Romain, Caron Jean-François (2021-01)
    Flow-Based Pultrusion of Continuous Fibers for Cement-Based Composite Material and Additive Manufacturing:
    Rheological and Technological Requirements
  4. Ducoulombier Nicolas, Demont Léo, Chateau Camille, Bornert Michel et al. (2020-04)
    Additive Manufacturing of Anisotropic Concrete:
    A Flow-Based Pultrusion of Continuous Fibers in a Cementitious Matrix
  5. Wu Zhengyu, Memari Ali, Duarte José (2022-01)
    State of the Art Review of Reinforcement-Strategies and Technologies for 3D Printing of Concrete

1 Citations

  1. Bono Victor, Demont Léo, Ducoulombier Nicolas, Mesnil Romain et al. (2024-09)
    Large-Scale 3D Printing of a Shell Structure Reinforced by the Flow-Based Pultrusion Process

BibTeX 
@inproceedings{demo_char_marg_duco.2022.FBPoAC,
  author            = "Léo Demont and Malo Charrier and Pierre Margerit and Nicolas Ducoulombier and Romain Mesnil and Jean-François Caron",
  title             = "Flow-Based Pultrusion of Anisotropic Concrete: Mechanical Properties at Hardened State",
  doi               = "10.1007/978-3-031-06116-5_57",
  year              = "2022",
  volume            = "37",
  pages             = "385--390",
  booktitle         = "Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2022",
  editor            = "Richard A. Buswell and Ana Blanco and Sergio Cavalaro and Peter Kinnell",
}
Formatted Citation

L. Demont, M. Charrier, P. Margerit, N. Ducoulombier, R. Mesnil and J.-F. Caron, “Flow-Based Pultrusion of Anisotropic Concrete: Mechanical Properties at Hardened State”, in Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2022, 2022, vol. 37, pp. 385–390. doi: 10.1007/978-3-031-06116-5_57.

Demont, Léo, Malo Charrier, Pierre Margerit, Nicolas Ducoulombier, Romain Mesnil, and Jean-François Caron. “Flow-Based Pultrusion of Anisotropic Concrete: Mechanical Properties at Hardened State”. In Proceedings of the 3rd RILEM International Conference on Concrete and Digital Fabrication: Digital Concrete 2022, edited by Richard A. Buswell, Ana Blanco, Sergio Cavalaro, and Peter Kinnell, 37:385–90, 2022. https://doi.org/10.1007/978-3-031-06116-5_57.