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    MNL67

    Basic Properties

    Published: Jan 2009


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    Abstract

    The basic properties of the phases in the system Ca2SO4H2O, which includes aspects of dihydrate, hemihydrate, soluble anhydrite, such as the solubilities and crystallographic structures. The role of water vapor pressure with regard to soluble anhydrite formation is emphasized. Further discussed are aging and the misconceptions such as the 23 hydrate and colloidal processes during setting.

    Keywords:

    gypsum phases, dihydrate, hemihydrate, soluble anhydrite, aging


    Committee/Subcommittee: C11.01

    DOI: 10.1520/MNL11584M