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Q: Which of the following test is done to determine the fineness of cement?
  • A. Conduction calorimeter
  • B. Wagner turbidimeter test
  • C. Blaine water-permeability test
  • D. Gillmore needle or vicat's apparatus
Correct Answer: Option B - Fineness of cement is tested– 1. By sieving 2. By determination of specific surface (total surface area of all the particles in one gram of cement) by air permeability apparatus. Expressed as cm2/gm or m2/kg. Generally Blaine air permeability apparatus is used. 3. Wagner turbidimeter test.
B. Fineness of cement is tested– 1. By sieving 2. By determination of specific surface (total surface area of all the particles in one gram of cement) by air permeability apparatus. Expressed as cm2/gm or m2/kg. Generally Blaine air permeability apparatus is used. 3. Wagner turbidimeter test.

Explanations:

Fineness of cement is tested– 1. By sieving 2. By determination of specific surface (total surface area of all the particles in one gram of cement) by air permeability apparatus. Expressed as cm2/gm or m2/kg. Generally Blaine air permeability apparatus is used. 3. Wagner turbidimeter test.