Question
The approximate composition of CaO in Portland cement is in the range of:
The correct answer is
60%-65%
Portland Cement CaO Composition Explained
Calcium Oxide (CaO) is a primary component in Portland cement, crucial for its binding properties and strength development.
The typical composition of CaO in Portland cement falls within a specific range.
Key CaO Composition Range
- The approximate percentage of CaO in Portland cement is generally between 60% and 65%.
- This range is essential for achieving the desired clinkering process during manufacturing and ensuring the cement's performance characteristics, such as setting time and compressive strength.
Therefore, the correct range representing the approximate composition of CaO in Portland cement is 60%-65%.
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Important Questions from Testing, Types of Cement
- Which one of the following statements is $not$ correct regarding the fineness of cement?
- Match the following lists:Select the correct answer using the code given below:
List-I (Types of cement) List-II (Uses) P. Rapid hardening 1. Repair of bridges Q. Quick-setting 2. Dams R. High alumina 3. Concrete under water S. Low-heat 4. Refractory concrete in industries - The percentage of MgO in cement is calculated using:
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