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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Neef, Tobias
in Cooperation with on an Cooperation-Score of 37%
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Publications (3/3 displayed)
- 2024Integrating continuous mineral-impregnated carbon fibers into digital fabrication with concretecitations
- 2023Robot-assisted Manufacturing Technology for 3D Non-metallic Reinforcement Structures in the Construction Applicationscitations
- 2022Integrating mineral-bonded carbon fibers into 3D concrete printing
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article
Integrating continuous mineral-impregnated carbon fibers into digital fabrication with concrete
Abstract
Digital concrete technologies, such as 3D concrete printing, have the potential to be game changers in the<br/>construction industry by reducing material consumption and offering a high level of automation. This not only<br/>provides a solution to the shortage of qualified workers but also makes construction sites more attractive<br/>workplaces. However, a significant challenge lies in integrating reinforcement, as traditional methods quickly<br/>reach their limits, particularly in geometrically complex, material-minimized structures. A potential solution is<br/>the use of mineral-impregnated carbon fibers (MCF) reinforcement, which offers high flexibility for 3D printing<br/>and better bonding to concrete compared to polymer coating, among other advantages. This article presents the<br/>integration of both freshly impregnated and cured MCF into two different concretes in the context of digital<br/>fabrication: 3D-printed concrete (3DPC) and self-compacting concrete (SCC). A particular focus was on the<br/>mechanical performance of MCF and MCF-reinforced concrete, as well as on the bond behavior between MCF and<br/>concrete. The second focus was on the production method. Therefore, samples were conventionally cast with<br/>SCC, while layered pouring or printing were used for producing specimens with 3DPC. It was found that the<br/>cured MCF exhibited a notably better bond, enhanced by 50%, to both 3DPC and SCC compared to freshly<br/>impregnated yarns. Subsequently, when subjected to uniaxial tensile loading, a significantly higher crack density<br/>and more uniform crack distribution could be observed in composites with cured MCF using digital image<br/>correlation (DIC). This effect was particularly pronounced in printed specimens and confirmed with computed<br/>tomography (CT) and environmental scanning electron microscope (ESEM) images.