According to Abram's law, the compressive strength of workable concrete generally increases when the water-cement ratio is
Correct answer: A. Decreased, provided compaction is adequate
- A. Decreased, provided compaction is adequate
- B. Increased within the same curing period
- C. Kept equal to the aggregate-cement ratio
- D. Raised until bleeding completely stops
Explanation
For a properly compacted mix, a lower water-cement ratio usually produces higher compressive strength because it leaves fewer capillary voids after hydration. Excessive reduction, however, can reduce workability and cause incomplete compaction.
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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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