| 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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Bernard, Ellina
Swiss Federal Laboratories for Materials Science and Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024A critical review of magnesium silicate hydrate (M-S-H) phases for binder applicationscitations
- 2023Phase changes in cementitious materials exposed to saline solutionscitations
- 2023MgO-based binderscitations
- 2023Effect of Carbonates on the Formation of Magnesium Silicate Hydrates (M-S-H) and Magnesium Alumino Silicate Hydrates (M-A-S-H)citations
- 2023MgO‐based cements – Current status and opportunitiescitations
- 2022Effect of carbonates on the formation of magnesium silicate hydratescitations
- 2022Research progress on magnesium silicate hydrate phases and future opportunitiescitations
- 2022Stability of hydrotalcite (Mg-Al layered double hydroxide) in presence of different anionscitations
- 2021Immobilization of (Aqueous) Cations in Low pH M-S-H Cementcitations
- 2019Alkali binding by magnesium silicate hydratescitations
- 2017Formation of magnesium silicate hydrates (M-S-H)citations
- 2017Magnesium silicate hydrate (M-S-H) characterization : temperature, calcium, aluminium and alkali ; Caractérisation de phases silico-magnésiennes (M-S-H et M-A-S-H) en fonction de la température, de la présence de calcium et en condition alcalines
Places of action
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article
Phase changes in cementitious materials exposed to saline solutions
Abstract
This article summarizes long-term degradation mechanisms of cementitious materials in contact with fresh and saline solutions based on a review of experimental observations in field and laboratory studies. In addition, a simplified thermodynamic modelling approach was used to calculate the effect of the solution composition, ranging from river water to sea water, on the intensity of leaching and the kind and quantity of phases formed at the interface with the environment. This study shows that leaching is the main underlying degradation mechanism for all investigated exposure solutions. The presence of carbonates and sulphates in the solution increases leaching and decalcification of Ca-rich phases leading to the precipitation of calcium carbonate and calcium sulfate, while the presence of chloride has little influence on the intensity of leaching. Carbonates in the interacting solution can suppress ettringite formation. If present, magnesium precipitates as brucite, M-S-H or hydrotalcite-like phase.