The approximate amount of silica present in cement is:
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. between 17% and 25%
- The amount of silica present in cement can vary depending on the type of cement. In general, ordinary Portland cement (OPC), which is the most commonly used type of cement, typically contains about 17-25% silica.
- However, the exact composition may vary among different brands and types of cement.