Surface Corrosion and Microstructure Degradation of Calcium Sulfoaluminate Cement Subjected to Wet-Dry Cycles in Sulfate Solution

Figure 7

SAC 0.50 w/c specimen subjected to 46 wet-dry cycles in 3% Na₂SO₄ + 1.80% MgSO₄ solution.

(a) Surface change

(b) SEM image