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

Figure 8

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

(a) Surface change

(b) SEM image