Fig. 23

Phase diagram for the system CaSO4-H2O in a plot of relative humidity versus temperature, where: a gypsum-anhydrite equilibrium curve; b gypsum–hemihydrate equilibrium curve [42]
Phase diagram for the system CaSO4-H2O in a plot of relative humidity versus temperature, where: a gypsum-anhydrite equilibrium curve; b gypsum–hemihydrate equilibrium curve [42]