Which risk increases when concrete column reinforcement steel experiences hydrogen embrittlement?

💡 Explanation

When hydrogen embrittlement occurs, the steel's ductility decreases becausethe hydrogen atoms diffuse into the steel lattice, reducing the critical stress for crack propagation, thus leading to premature failure. Therefore buckling risk increases, rather than cracking, creep, or spalling, that depend on concrete matrix properties, or freeze induced expansion.

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