The function of 2% potassium sulphate in a gypsum product is_____________?
Correct answer: A. Regulate setting time
- A. Regulate setting time
- B. To regulate the setting expansion
- C. Acts as retarder
- D. None
Explanation
Potassium sulfate acts as an accelerator in gypsum, so its main role is to regulate or shorten the setting time. It does not function primarily as a retarder.
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