| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Kunther, W.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2024Mapping circular economy practices for steel, cement, glass, brick, insulation, and wood – A review for climate mitigation modelingcitations
- 2023Phase changes in cementitious materials exposed to saline solutionscitations
- 2023Thermodynamics of calcined clays used in cementitious binders: origin to service life considerations
- 2018Improved volume stability of mortar bars exposed to magnesium sulfate in the presence of bicarbonate ionscitations
- 2015Influence of the Ca/Si ratio of the C-S-H phase on the interaction with sulfate ions and its impact on the ettringite crystallization pressurecitations
- 2015Durability of portland cement blends including calcined clay and limestone: Interactions with sulfate, chloride and carbonate ionscitations
- 2013Influence of bicarbonate ions on the deterioration of mortar bars in sulfate solutionscitations
- 2012Thermodynamic modeling of sulfate interaction
Places of action
| Organizations | Location | People |
|---|
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.