Research Article

Carbonation Resistance of Cement-Based Materials Improved by Nitrite

Figure 9

Dynamic vapor isothermal curve of cement paste containing (a) 0%, (b) 1.0%, (c) 2.0%, and (d) 3.0% chemical admixture. The black and blue lines represent relative humidity and moisture content shown on the primary and secondary y-axis.
(a)
(b)
(c)
(d)