Avin Pillay, Mirella Elkadi, Fadi Feghali, Sai Cheong Fok, Ghada Bassioni, Sasi Stephen
Depth profiling studies (laser ICP-MS) of ions (Cl-, Na+, Mg2+) in concrete-based material can be... more Depth profiling studies (laser ICP-MS) of ions (Cl-, Na+, Mg2+) in concrete-based material can be used to provide useful information on the migration paths of these ionic species. In particular, deterioration of concrete through infiltration of chloride could lead to costly corrosion problems with serious impact on the environment. Many modeling studies on concrete matrices depend on the tortuosity of these transport paths. Our work showed that dispersion paths of ionic species in concrete are intermittent and sporadic, suggesting that applications of simplifying assumptions in treatment of such data could lead to appreciable perturbations in related mathematical models. This paper examines the capability of using a high resolution ICP-MS laser ablation technique to track Cl– migration in concrete samples in the presence of other ions such as Na+ and Mg2+. Cationic migration in such materials is underexplored and data in this particular area could contribute to modeling studies. Con...
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Papers by mirella elkadi