Discussion
State whether the following is true or false.
Prolonged exposure of stored clinker to damp air is harmless.
Answer: B
Correct answer: False
Clinker is anhydrous and prehydrates on exposure to moisture, the free lime slaking and the aluminate and silicates reacting at their surfaces. The result is a cement of lower strength and altered setting, so clinker is stored under cover and stock is rotated rather than left indefinitely.
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