The fineness of cement is tested by:

Air-content method

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Air-permeability method

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Le-Chatelier method

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Vicat's apparatus

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Solution

The correct option is B Air-permeability method
Fineness of cement is tested in two ways-
1. By sieving, and
2. By determination of specific surface area (total surface area of all the particles in one gram of cement) by air-permeability method.

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