Addition of 2% gypsum in cement leads to:
Correct answer: C. Preventing of rapid hardening
- A. Hydration
- B. Hydrolysis
- C. Preventing of rapid hardening
- D. All of the above options are correct
Explanation
During the grinding there is added about 2% of gypsum which prevents the cement from hardening too rapidly.The addition of gypsum increases the setting time of cement.
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About Salts and Hydrolysis
Salt hydrolysis explains how ions from weak acids or weak bases react with water and affect the pH of a solution. The content covers acidic, basic and neutral salts, hydrolysis equations, Ka, Kb and Kw relationships, degree of hydrolysis and buffer connections, distinguishing hydrolysis from simple acid-base neutralisation.
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