Which curing method is particularly suitable where continuous water curing is difficult and a sealed surface is required?
Correct answer: C. Membrane curing
- A. Open-air exposure
- B. Dry-air curing
- C. Membrane curing
- D. Repeated heating
Explanation
Membrane curing seals the concrete surface and reduces moisture loss when ponding or continuous sprinkling is impractical. Dry exposure promotes moisture loss, while uncontrolled heating can cause cracking and does not replace proper curing.
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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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