Increasing the fineness of Portland cement generally causes the cement to
Correct answer: D. Hydrate more rapidly and gain early strength faster
- A. Become completely resistant to sulphate attack
- B. Require no water for normal consistency
- C. Produce less heat during hydration
- D. Hydrate more rapidly and gain early strength faster
Explanation
Finer cement has a greater surface area in contact with water, so hydration proceeds more rapidly and early strength usually increases. It may also increase water demand and heat generation, so the other options are incorrect.
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About Concrete Technology
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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