The function of 2% potassium sulphate in a gypsum product is_____________?
(A) To regulate the setting expansion
(B) Regulate setting time
(C) Acts as retarder
(D) None
The function of 2% potassium sulphate in a gypsum product is_____________?
(A) To regulate the setting expansion
(B) Regulate setting time
(C) Acts as retarder
(D) None
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