Fig. 23

CaSO4-H2O in a plot of relative humidity versus temperature, where: (a) gypsum-anhydrite equilibrium curve, (b) gypsum–hemihydrate equilibrium curve76.
CaSO4-H2O in a plot of relative humidity versus temperature, where: (a) gypsum-anhydrite equilibrium curve, (b) gypsum–hemihydrate equilibrium curve76.