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Question : The approximate amount of silica present in cement is:

Option 1: between 27% and 35%

Option 2: between 37% and 45%

Option 3: between 17% and 25%

Option 4: between 47% and 55%


Team Careers360 14th Jan, 2024
Answer (1)
Team Careers360 18th Jan, 2024

Correct Answer: between 17% and 25%


Solution : The correct option is between 17% and 25% .

Silica, often known as silicon dioxide, is the second most common cement ingredient, accounting for 17 to 25%. Cement is mixed with lime to increase setting time and serve as a binding agent. Because silica and calcium oxide combine to generate calcium silicates, the primary constituent of cement, silica plays a significant role in the composition of cement.

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