| People | Locations | Statistics |
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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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Kaiser, Jozef
Epoka University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2023Fatigue behaviour of titanium scaffolds with hierarchical porosity produced by material extrusion additive manufacturingcitations
- 2023Interlaboratory comparison for quantitative chlorine analysis in cement pastes with laser induced breakdown spectroscopycitations
- 2023Interlaboratory comparison for quantitative chlorine analysis in cement pastes with laser induced breakdown spectroscopycitations
- 2022Degradable magnesium-hydroxyapatite interpenetrating phase composites processed by current assisted metal infiltration in additive-manufactured porous preformscitations
- 2022Contour laser strategy and its benefits for lattice structure manufacturing by selective laser melting technologycitations
- 2021Interface Behavior and Interface Tensile Strength of a Hardened Concrete Mixture with a Coarse Aggregate for Additive Manufacturingcitations
- 2020Strength and fracture mechanism of iron reinforced tricalcium phosphate cermet fabricated by spark plasma sintering ; Pevnost a lomové mechanismy železem zpevněhého trikalcium fosfátového cermetu vyrobeného metodou spark plasma sinteringcitations
- 2020Influence of Scanning Strategies on Processing of Aluminum Alloy EN AW 2618 Using Selective Laser Meltingcitations
- 2020Heat treatment induced phase transformations in zirconia and yttriastabilized zirconia monolithic aerogelscitations
- 2020High strength, biodegradable and cytocompatible alpha tricalcium phosphate-iron composites for temporal reduction of bone fractures ; Vysoce pevné, biologicky odbouratelné a cytocompatibilní kompozity alfa trikalcium fosfát-železo pro časovou redukci fraktur kostícitations
- 2019Laboratory X-ray tomography for metal additive manufacturingcitations
- 2019SLM process parameters development of Cu-alloy Cu7.2Ni1.8Si1Crcitations
- 2018Accelerated hardening of nanotextured 3D-plotted self-setting calcium phosphate inkscitations
- 2017Fracture Mechanism of Interpenetrating Iron-Tricalcium Phosphate Composite ; Lomové mechanismy inpenetrovaného kompozizu železo - trikalcium fosfátcitations
- 2014Temperature effect on the microstructural development of Al–Ni layered binary couples produced by an unconventional methodcitations
Places of action
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article
Interface Behavior and Interface Tensile Strength of a Hardened Concrete Mixture with a Coarse Aggregate for Additive Manufacturing
Abstract
3D concrete printing technology (3DCP) is a relatively new technology that was first established in the 1990s. The main weakness of the technology is the interface strength between the extruded layers, which are deposited at different time intervals. Consequently, the interface strength is assumed to vary in relation to the time of concrete casting. The proposed experimental study investigated the behavior of a hardened concrete mixture containing coarse aggregates that were up to 8 mm in size, which is rather unusual for 3DCP technology. The resulting direct tensile strength at the layer interface was investigated for various time intervals of deposition from the initial mixing of concrete components. To better understand the material behavior at the layer interface area, computed tomography (CT) scanning was conducted, where the volumetric and area analysis enabled validation of the pore size and count distribution in accordance with the layer deposition process. The analyzed CT data related the macroscopic anisotropy and the resulting crack pattern to the temporal and spatial variability that is inherent to the additive manufacturing process at construction scales while providing additional insights into the porosity formation during the extrusion of the cementitious composite. The observed results contribute to previous investigations in this field by demonstrating the causal relationships, namely, how the interface strength development is determined by time, deposition process, and pore size distribution. Moreover, in regard to the printability of the proposed coarse aggregate mixture, the specific time interval is presented and its interplay with interface roughness and porosity is discussed.