| 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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Jebli, Mouad
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024Experimental evaluation of interface adhesion of a flax fiber composite patch with epoxy and polyurethane adhesives for the reinforcement of steel structurescitations
- 2024Experimental evaluation of interface adhesion of a flax fiber composite patch with epoxy and polyurethane adhesives for the reinforcement of steel structurescitations
- 2023Identification of a cohesive zone model for cement paste-aggregate interface in a shear testcitations
- 2023Experimental evaluation of interface adhesion of a flax fiber composite patch with epoxy and polyurethane adhesives for the reinforcement of steel structurescitations
- 2021Characterization of the expansion due to the delayed ettringite formation at the cement paste-aggregate interfacecitations
- 2021Characterization of the expansion due to the delayed ettringite formation at the cement paste-aggregate interfacecitations
- 2020Identification of a cohesive zone model for cement paste-aggregate interface in a shear testcitations
- 2020Experimental study of the chemo-mechanical properties of the interfacial transition zone of concrete
- 2020Leaching effect on concrete - Part I: characterization of chemical degradation evolution of ITZ ; Efectul levigării asupra betonului -partea I: caracterizarea evoluției degradării chimice a zonei de tranziție inter facială
- 2020Leaching effect on concrete – Part II: mechanical behaviour evolution of ITZ during leaching at the local scale
- 2020Leaching effect on concrete – Part II: mechanical behaviour evolution of ITZ during leaching at the local scale ; Efectul levigării asupra betonului – partea a ii-a: evoluția comportării mecanice a itz în timpul levigării la scară locală
- 2020Caractérisation à l’échelle locale de la dégradation de l’interphase ciment-granulat par un traitement hygrothermique
- 2020Leaching effect on concrete -part I: characterization of chemical degradation evolution of ITZ
- 2019Identification of a cohesive zone model for cement paste-aggregate interface in a shear testcitations
- 2018Leaching effect on mechanical properties of cement-aggregate interfacecitations
- 2018Leaching effect on mechanical properties of cement-aggregate interfacecitations
- 2018Experimental characterization of mechanical properties of the cement-aggregate interface in concretecitations
- 2018Experimental characterization of mechanical properties of the cement-aggregate interface in concretecitations
- 2018Caractérisation de l'expansion due à la réaction sulfatique interne à l'échelle de l'interphase pâte de ciment-granulat
- 2018Caractérisation expérimentale des propriétés chimio-mécaniques de l'interphase pâte de ciment-granulat par MEB et nano-indentation
- 2016Characterization of behavior and cracking of a cement paste confined between spherical aggregate particlescitations
- 2016Characterization of behavior and cracking of a cement paste confined between spherical aggregate particlescitations
- 2016Characterization at the local scale of mechanical properties of the cement paste-aggregate interface : leaching application
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article
Leaching effect on mechanical properties of cement-aggregate interface
Abstract
This study concerns the characterization of the mechanical properties of the cement paste and of the cement-aggregate interface in the degraded state by a chemical leaching mechanism. This study is carried out within the framework of the MIST laboratory. The experimental tests were carried out on cement paste and composites consisting of aggregates bound by the same cement paste prepared with a water/cement ratio of 0.5. The particular experimental devices, designed and produced for the purposes of this study, made it possible to directy solicit the composites at the cement-aggregate interface. As the process of leaching with the deionized water occurs very slowly, the experimental study is accelerated in the laboratory by replacing water by ammonium nitrate solution. To quantify the development and kinetics of chemical degradation at the cemented bond, the concrete leaching fronts are characterized at different times of degradation by using phenolphthalein. The local mechanical tests (tensile and shear) are performed on cement paste and composite at different degradation rate. The experimental results show a fast drop in shear or tensile strength of about 45% at the beginning of degradation. These results confirm the effect of the cement paste-aggregate interface degradation on the mechanical properties.