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← ScienceWhich outcome weakens structural integrity when chloride ions permeate reinforced concrete foundations?
A)Corrosion initiating on the rebar✓
B)Accelerated carbonation of concrete
C)Sulfate attack of the cement
D)Alkali-silica reaction occurrence
💡 Explanation
Chloride ions in concrete lead to rebar corrosion because they disrupt the passive protective oxide layer through **localized corrosion**, therefore steel oxidation occurs rather than maintaining protection because the iron ions form soluble compounds.
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