Which risk increases when concrete bridge column reinforcement steel experiences chloride-induced corrosion?

💡 Explanation

When chloride ions penetrate the concrete, induced corrosion of the reinforcement steel occurs because the chloride changes the electrochemical potential, causing oxidation of the steel and expansion which leads to spalling and loss of structural integrity directly impairing the capacity. Therefore spalling and reduced load capacity results, rather than thermal expansion, vibration, or EM interference which have different root causes.

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