Gypsum Addition an overview ScienceDirect Topics
While naturalgypsumas used in a cementmillis usually a combination of CaSO 4 ⋅2H 2 O and CaSO 4 (gypsumand anhydrite respectively), synthetic alternatives may consist of a slurry of CaSO 4 ⋅2H 2 O, a dry plasterboard product (also CaSO 4 ⋅2H 2 O) or a powder or cake of anhydrite.
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