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← TechnologyWhich outcome is LEAST likely when a reinforced concrete column experiences chloride-induced corrosion of the rebar?
A)Spalling of concrete cover occurs
B)Increase in the concrete tensile strength✓
C)Reduction in column load capacity
D)Bond strength between steel and concrete decreasing
💡 Explanation
When chloride ions penetrate concrete, the passive layer protecting the rebar breaks down causing corrosion because of electrochemical reactions. Resulting rust expands, causing spalling and reduced bond strength decreasing column capacity. Therefore B is least likely, because corrosion does not increase concrete tensile strength.
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