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← TechnologyWhich risk increases when improperly supported rebar cages are dropped during concrete pouring operations?
A)Reduced concrete compressive strength
B)Accelerated rebar corrosion initiation
C)Localized reduction in concrete cover✓
D)Increased risk of thermal cracking
💡 Explanation
When rebar cages deform during concrete pouring, concrete displacement occurs because movement of rebar reduces the intended spacing, leading to localized thin concrete coverage. Therefore, reduced concrete cover results, rather than reduced concrete compressive strength, accelerated corrosion, or increased cracking which arise from other failure mechanisms.
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