CaCO3 addition (%) | Water absorption performance (g/g) | Salt resistance (g/g) |
4 | 106.41 | 26.46 |
7 | 151.31 | 24.89 |
10 | 219.85 | 29.36 |
13 | 251.37 | 25.37 |
16 | 238.66 | 24.90 |
19 | 218.48 | 26.09 |