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Q: In cements, generally the increase in strength during a period of 14 days to 28 days is primarily due to
  • A. C₄AF
  • B. C₃S
  • C. C ₂S
  • D. C₃ A
Correct Answer: Option B - Tricalcium silicate [C₃S-40%] is responsible for 14-28 days strength of primarily contributed by C₃S, • However ultimately both C₃S and C ₂S contributes towards strength.
B. Tricalcium silicate [C₃S-40%] is responsible for 14-28 days strength of primarily contributed by C₃S, • However ultimately both C₃S and C ₂S contributes towards strength.

Explanations:

Tricalcium silicate [C₃S-40%] is responsible for 14-28 days strength of primarily contributed by C₃S, • However ultimately both C₃S and C ₂S contributes towards strength.