Water containing a high concentration of chlorides is unsuitable for reinforced concrete mainly because it can
Correct answer: B. Promote corrosion of embedded steel
- A. Increase the specific gravity of cement
- B. Promote corrosion of embedded steel
- C. Prevent aggregate interlocking
- D. Eliminate cement hydration
Explanation
Chloride ions can break down the passive protective film around reinforcing steel and promote corrosion when sufficient moisture and oxygen are present. They do not normally eliminate hydration, although contaminated water may affect other concrete properties as well.
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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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