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← TechnologyWhich outcome occurs when concrete’s water permeability exceeds specification limits in rebar-reinforced columns?
A)Accelerated rebar corrosion✓
B)Increased compressive strength
C)Enhanced bond stiffness
D)Reduced concrete spalling
💡 Explanation
Accelerated rebar corrosion occurs because excessive water infiltration allows chloride ions to penetrate, initiating chloride-induced corrosion of the steel rebar; this is electrochemical reaction, rather than an improvement in strength. Therefore, rebar corrodes; rather than enhanced protection.
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