Which risk increases when improperly supported rebar cages are dropped during concrete pouring operations?

💡 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.

• Which outcome occurs when shear strain resists prestressing?
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