search
arrow-left Previous
Next arrow-right
Q: Which of the following shows the CORRECT decreasing order or rate of hydration of Portland cement compounds?
  • A. C₃A > C4AF > C₃S > C₂S
  • B. C₃A > C₄AF > C₂S > C₃S
  • C. C₃A > C₃S > C₂S > C₄AF
  • D. C₄AF>C₃A>C₃S>C₂S
Correct Answer: Option D - Decreasing order of rate of hydration of C₄AF > C₃A > C₃S > C₂S. The chemical reaction between cement and water is known as hydration of cement. The reaction takes place between the active components of cement (C₄AF,C₃A, C₃S and C₂S) and water.
D. Decreasing order of rate of hydration of C₄AF > C₃A > C₃S > C₂S. The chemical reaction between cement and water is known as hydration of cement. The reaction takes place between the active components of cement (C₄AF,C₃A, C₃S and C₂S) and water.

Explanations:

Decreasing order of rate of hydration of C₄AF > C₃A > C₃S > C₂S. The chemical reaction between cement and water is known as hydration of cement. The reaction takes place between the active components of cement (C₄AF,C₃A, C₃S and C₂S) and water.