Which outcome occurs when a pre-stressed concrete beam experiences chloride-induced corrosion?

💡 Explanation

When chloride ions penetrate concrete, they cause corrosion of the pre-stressing steel via electrochemical oxidation, reducing the steel's cross-sectional area and tensile strength, causing a prestress force loss. Therefore, prestress loss results, rather than shear failure, increased ductility or spalling, because each of these require different dominant failure mechanisms and conditions.

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