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A platform for research: civil engineering, architecture and urbanism
Chloride transport in unsaturated cement-based materials
The aim of this work is to model the transfer of chlorides in unsaturated cement based materials submitted to humidification—drying cycles. The developed model is multi-species and takes into account the binding isotherms of the chlorides and their convection velocity. The simulations of chloride profile carried out showed in the concrete cover an increase of 14% of free chloride concentration due to the convection and a decrease of 36% due to the chemical interactions. Experimentally, this model was validated by using imbibitions and drying tests. Finally, we have shown that the humidification—drying processes accelerate the chloride ingress and consequently the risk of corrosion.
Chloride transport in unsaturated cement-based materials
The aim of this work is to model the transfer of chlorides in unsaturated cement based materials submitted to humidification—drying cycles. The developed model is multi-species and takes into account the binding isotherms of the chlorides and their convection velocity. The simulations of chloride profile carried out showed in the concrete cover an increase of 14% of free chloride concentration due to the convection and a decrease of 36% due to the chemical interactions. Experimentally, this model was validated by using imbibitions and drying tests. Finally, we have shown that the humidification—drying processes accelerate the chloride ingress and consequently the risk of corrosion.
Chloride transport in unsaturated cement-based materials
Sleiman, Hassan (author) / Amiri, Ouali (author) / Aït-Mokhtar, Abdelkarim (author)
European Journal of Environmental and Civil Engineering ; 13 ; 489-499
2009-04-01
11 pages
Article (Journal)
Electronic Resource
Unknown
Transport properties in unsaturated cement-based materials – A review
| Online Contents | 2014
Transport properties in unsaturated cement-based materials – A review
| Elsevier | 2014