Completely Replace Natural Gypsum As Cement Retarder

This article reports on the use of alternative calcium sulfate-bearing materials, notably anhydrite, as cement retarders in cement pastes of CEM-I and CEM-II types. The aim of the study is to inquire the extent of natural gypsum replacement by natural anhydrite. The result of the hydration process has been expressed by the setting time and the ...

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