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Q: The specific surface of cement is a property cement used to know the _____.
  • A. specific gravity of cement
  • B. soundness of cement
  • C. strength of cement
  • D. fineness of cement
Correct Answer: Option D - Fineness– Fineness or particle size is an important property of portland cement, as it affects hydration rate and thus used to determine the rate of gain of strength. It increases the workability of concrete mix, as due to fineness the mix becomes more cohesive. • In order to find the properly of "fineness" the specific surface of cement is determined. The specific surfaces of cement can be determined by the air permeability method by BS-4550.
D. Fineness– Fineness or particle size is an important property of portland cement, as it affects hydration rate and thus used to determine the rate of gain of strength. It increases the workability of concrete mix, as due to fineness the mix becomes more cohesive. • In order to find the properly of "fineness" the specific surface of cement is determined. The specific surfaces of cement can be determined by the air permeability method by BS-4550.

Explanations:

Fineness– Fineness or particle size is an important property of portland cement, as it affects hydration rate and thus used to determine the rate of gain of strength. It increases the workability of concrete mix, as due to fineness the mix becomes more cohesive. • In order to find the properly of "fineness" the specific surface of cement is determined. The specific surfaces of cement can be determined by the air permeability method by BS-4550.