Which risk increases when chlorides induce corrosion in prestressing steel strands?

💡 Explanation

When chlorides cause corrosion, hydrogen embrittlement can occur in high-strength prestressing steel because the electrochemical reaction produces atomic hydrogen which diffuses into the steel matrix, reducing ductility. Therefore Brittle fracture results, rather than concrete spalling, buckling failure, or increased creep, requiring expansive byproducts or elevated temperatures, respectively.

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