Question

Consider the following statements:
High early strength of cement is obtained as a result of
1. Fine grinding
2. Decreasing the lime content
3. Burning at higher temperature
4. Increasing the quantity of gypsum
Which of the above statements are correct?

• A. 1 and 2
• B. 1 and 3
• C. 2 and 3
• D. 3 and 4

Answer 1

The correct option is B 1 and 3

Finer the cement more is the rate of hydration which results in development of early strength. Burning at higher temperture increases tricalcium sulphate $\left(C_{3}S\right)$ and hence leads to high early strength.