| 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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Romero Rodriguez, Claudia
Delft University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2022Surface effects of molten slag spills on calcium aluminate cement pastecitations
- 2022Modelling of capillary water absorption in sound and cracked concrete using a dual-lattice approachcitations
- 2021Characterization of air-void systems in 3D printed cementitious materials using optical image scanning and X-ray computed tomographycitations
- 2021Assessment of the self-healing capacity of cementitious materials through active thin sectionscitations
- 2021Modeling of microstructural effects on the creep of hardened cement paste using an experimentally informed lattice modelcitations
- 2021Accelerated carbonation of ordinary Portland cement paste and its effects on microstructure and transport properties
- 2020X-Ray Micro Tomography of Water Absorption by Superabsorbent Polymers in Mortarcitations
- 2020Influence of SiO2, TiO2 and Fe2O3 nanoparticles on the properties of fly ash blended cement mortarscitations
- 2020Effect of printing parameters on interlayer bond strength of 3D printed limestone-calcined clay-based cementitious materialscitations
- 2020Fundamental investigation on the frost resistance of mortar with microencapsulated phase change materialscitations
- 20193D Concrete Printing for Structural Applications
- 2019On The Role Of Soft Inclusions On The Fracture Behaviour Of Cement Pastecitations
- 2019Frost Damage Progression Studied Through X-Ray tomography In Mortar With Phase Change Materials
- 2019Numerical investigation of crack self-sealing in cement-based composites with superabsorbent polymerscitations
- 2018Modelling strategies for the study of crack self-sealing in mortar with superabsorbent polymers
- 2018Proceedings of the Symposium on Concrete Modelling
- 2016Induction healing of concrete reinforced by bitumen-coated steel fibrescitations
Places of action
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article
Effect of printing parameters on interlayer bond strength of 3D printed limestone-calcined clay-based cementitious materials
Abstract
<p>For a single batch material, time intervals and nozzle standoff distances between two subsequent layers are two critical printing parameters that influence the mechanical performance of the printed concrete. This paper presents an experimental and numerical study to investigate the impacts of these printing parameters on the interlayer bond strength of the 3D printed limestone and calcined clay-based cementitious materials. All samples were manufactured by a lab-scale 3D printer equipped with a hybrid back- and down-flow nozzle (rectangular opening). The uniaxial tensile test was employed to quantify the interface adhesion of printed specimens. Moreover, the greyscale value image of microstructure, as well as the air void content and distribution of the printed specimens were acquired by X-ray computed tomography and characterized by image analysis. The experimental results showed that extending the time interval between construction of two layers could decrease the bond strength, whereas only increasing the nozzle standoff distance exhibited limited effects on that. The weak bond strength could be attributed to the high local porosity at the interface of the specimen. Additionally, numerical simulations of the uniaxial tensile test were conducted using a 2D lattice fracture model, which can predict the bond strength of printed specimens for different void content in the interface layer.</p>