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← TechnologyWhich risk increases when concrete curing of a high-rise building support column is prematurely halted?
A)Increased carbonation penetration reducing alkalinity✓
B)Reduced rebar corrosion due to heat stress
C)Higher chloride ingress blocking the concrete
D)Decreased spalling resistance lowering strength
💡 Explanation
Prematurely halting concrete curing leads to incomplete hydration of cement because this affects the internal capillary structure, increasing carbonation penetration and reducing alkalinity, thus accelerating rebar corrosion. Therefore increased carbonation penetration results rather than other options which require alternate mechanisms of environmental ingress.
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