Which Portland cement compound is chiefly associated with high heat of hydration?
Correct answer: A. Tricalcium aluminate
- A. Tricalcium aluminate
- B. Dicalcium silicate
- C. Tricalcium silicate
- D. Tetracalcium aluminoferrite
Explanation
Tricalcium aluminate, commonly written as C3A, reacts rapidly with water and contributes substantially to heat generation. Dicalcium silicate reacts more slowly, while the other compounds have different principal effects.
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Concrete technology covers cement, aggregates, water and admixtures, including their properties, proportioning and effect on fresh and hardened concrete. It explains workability, water-cement ratio, setting, hydration, strength, durability, curing, mix design and common defects, while distinguishing segregation and bleeding from general loss of workability.
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