What is the normal consistency of opc?

The normal consistency of ordinary portland cement is about 30%.

Solution

Normal consistency is the consistency of cement paste which allows penetration of the 10 mm diameter needle of Vicat plunger to 5 to 7 mm from the bottom of the standard Vicat apparatus.

• Normal consistency is also known as standard consistency of cement.
• Normal consistency for ordinary Portland cement generally varies between 26-33%.

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