| 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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Rocha, João
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2023A hybrid double perovskite ferroelastic exhibiting the highest number of orientation statescitations
- 2023Parylene-Sealed Perovskite Nanocrystals Down-Shifting Layer for Luminescent Spectral Matching in Thin Film Photovoltaicscitations
- 2023Parylene-Sealed Perovskite Nanocrystals Down-Shifting Layer for Luminescent Spectral Matching in Thin Film Photovoltaicscitations
- 2022Through-space hopping transport in an iodinedoped perylene-based metal–organic frameworkcitations
- 2022Tensile and flexural strength of flax fiber reinforced composites with and without chemical treatment
- 2022Structure-Dependent Photoluminescence in Two Low-Dimensional Organic–Inorganic Hybrids
- 2021Statics and dynamics of ferroelectric domains in molecular multiaxial ferroelectric (Me3NOH)2[KCo(CN)6]citations
- 2021The influence of manufacturing factors in the short-fiber non-woven chestnut hedgehog spine-reinforced polyester composite performancecitations
- 2020Photoresponsive Organic–Inorganic Hybrid Ferroelectric Designed at the Molecular Levelcitations
- 2019Gd- and Eu-loaded iron oxide@silica core–shell nanocomposites as trimodal contrast agents for magnetic resonance imaging and optical imagingcitations
- 2016Mechanical characterisation of cytisus scoparius natural fibres – a preliminary
- 2014Monitoring hydration in lime-metakaolin composites using electrochemical impedance spectroscopy and nuclear magnetic resonance spectroscopycitations
- 2012Series of metal organic frameworks assembled from Ln(III), Na(I), and chiral flexible-achiral rigid dicarboxylates exhibiting tunable UV-vis-IR light emissioncitations
- 2005Hydrothermal synthesis and structural characterisation of a Ge-pmida binuclear complex : X-Ray diffraction and HETCOR MAS NMR with FS-LG decouplingcitations
Places of action
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article
Monitoring hydration in lime-metakaolin composites using electrochemical impedance spectroscopy and nuclear magnetic resonance spectroscopy
Abstract
This paper describes a study of the hydraulic reactions between metakaolin (MK) and air lime using electrochemical impedance spectroscopy (EIS) and nuclear magnetic resonance spectroscopy (NMR). Tests were carried out at 20, 25 and 30°C on lime-MK pastes with 10:1 w/w ratio. Tests over 28 days allowed identification of relevant changes in the EIS signals and characterization of pastes using thermal analysis (TGA/DSC), scanning electron microscopy (SEM), mercury intrusion porosimetry (MIP) and uni-axial compressive tests. Tests over shorter periods of time (up to 42 h) allowed more detailed studies of the hydraulic phases formed at the very beginning of the reactions.<br/><br/> Results of thermal analyses demonstrate formation of hydraulic compounds such as CSH, C4AH13 and C3ASH6 and show their evolution over time. MIP analysis demonstrates changes in pore size distribution related to the formation and trasformation of hydraulic phases. Variations of impedance response with time are shown to be associated with reaction kinetics. Changes in the NMR signal within the first 42 h of reaction are shown to be associated with the dissolution of calcium hydroxide in the pore solution. Overall, this paper demonstrates the importance of NMR in the study of hydraulic reactions in lime based materials and the ability of EIS to detect the formation of hydraulic compounds and the end of the calcium hydroxide dissolution process.