3D printing of mortar with continuous fibres: Principle, properties and potential for application
| Autor: | Jean-François Caron, Romain Mesnil, Nicolas Ducoulombier, Léo Demont |
|---|---|
| Přispěvatelé: | Laboratoire Navier (NAVIER UMR 8205), École des Ponts ParisTech (ENPC)-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel |
| Rok vydání: | 2021 |
| Předmět: |
Cantilever
Computer science composite materials Composite number 0211 other engineering and technologies 3D printing Mechanical engineering 020101 civil engineering 02 engineering and technology 0201 civil engineering fibre reinforced concrete 021105 building & construction concrete printing anisotropic concrete Reinforcement Ductility Civil and Structural Engineering business.industry pultrusion Building and Construction [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph] Control and Systems Engineering Pultrusion Mortar Routing (electronic design automation) business additive manufacturing |
| Zdroj: | Automation in Construction Automation in Construction, Elsevier, 2021, 129, pp.103806. ⟨10.1016/j.autcon.2021.103806⟩ |
| ISSN: | 0926-5805 |
| DOI: | 10.1016/j.autcon.2021.103806 |
| Popis: | International audience; Important developments in additive manufacturing with concrete have been achieved in the past decades. Yet, printed components usually do not comply with building standards or basic reliability principles, and are not commonly used as load-bearing components. A gap between research and practice exists and despite several attempts, off-the-shelf commercial solutions for the reinforcement of the 3D printed structural components seem always expected. This article presents an alternative (pending for patent [1]) for reinforcement of 3D printed structures. This technology inspired by the composite industry is called Flow-Based Pultrusion for additive manufacturing (FBP). A strict control of the rheological behaviour of the cementitious matrix ensures the routing and impregnation of continuous rovings of thin fibres (glass, basalt, etc.) without any motorization. The resulting material, Anisotropic Concrete, homogeneously reinforced in a single direction, provides new possibilities, may enhance strength and ductility for hardened material but also help to a better handling of the fresh laces during the deposition, permitting inclined or cantilever paths. This paper describes the process, its constraints, first experimental achievements and first investigations about the mechanical performances of such a material. |
| Databáze: | OpenAIRE |
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