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What is the purpose of adding gypsum to cement ? (1) To facilitate the hydration of cement (2) To slow down the process of setting (3) To give a hard mass (4) To speed up the process of setting

1. To facilitate the hydration of cement
2. To slow down the process of setting
3. To give a hard mass
4. To speed up the process of setting

Correct answer: To slow down the process of setting

Solution

Gypsum is added to cement primarily to slow down the setting process, allowing for better workability and manipulation of the cement before it hardens.

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