Which risk increases in a prestressed concrete beam exposed to prolonged chloride-rich environments?

💡 Explanation

When chloride penetrates prestressed concrete, chloride-induced corrosion occurs because destroys the passivating layer on the steel, creating local sites for hydrogen absorption within prestressing steel leading to crack propagation. Therefore hydrogen embrittlement risk increases, rather than creep, alkali-silica reaction, or carbonation which require other mechanisms.

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