What is a direct consequence of reinforcement corrosion at the steel-concrete interface?

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Multiple Choice

What is a direct consequence of reinforcement corrosion at the steel-concrete interface?

Explanation:
Corrosion products occupy more volume than the steel, so as the rebar rusts, it expands and pushes on the surrounding concrete at the steel–concrete interface. This creates tensile stresses in the concrete, leading to crack formation. Over time those cracks can grow and the concrete can spall (fl ake off), which further weakens the bond and exposes more steel to moisture, accelerating deterioration. This sequence is why crack formation and spalling are the direct consequences of reinforcement corrosion.

Corrosion products occupy more volume than the steel, so as the rebar rusts, it expands and pushes on the surrounding concrete at the steel–concrete interface. This creates tensile stresses in the concrete, leading to crack formation. Over time those cracks can grow and the concrete can spall (fl ake off), which further weakens the bond and exposes more steel to moisture, accelerating deterioration. This sequence is why crack formation and spalling are the direct consequences of reinforcement corrosion.

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