Question

The compound of Portland cement which contributes to the strength after two to three year is

• A. Tricalcium silicate
• B. Dicalcium silicate
• C. Tricalcium silicate
• D. Tetracalcium alumino ferrite

Answer 1

Answer:

B. Dicalcium silicate

In cement Tricalcium aluminate(C3A)- responsible for initial set, high heat of hydration. Tricalcium silicate(C3S)-responsible for early strength and hardness. Dicalcium silicate(C2S) - responsible for final strength.