In concrete filled-grid steel decks, corrosion can cause joints to:

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Prepare for the NHI Bridge Inspection Course with quizzes. Review key concepts with multiple choice questions, complete with hints and explanations. Sharpen your skills and boost your confidence for the exam!

Multiple Choice

In concrete filled-grid steel decks, corrosion can cause joints to:

Explanation:
Corrosion causes the metal to expand. When steel corrodes, the corrosion products (rust) occupy much more volume than the original metal, generating expansive forces. In a concrete filled-grid steel deck, those expanding corrosion products push against the surrounding concrete and joint interfaces, causing the joints to widen or open. This is the primary visible effect on joints from corrosion, even though corrosion can also lead to reduced cross-section and other damage over time.

Corrosion causes the metal to expand. When steel corrodes, the corrosion products (rust) occupy much more volume than the original metal, generating expansive forces. In a concrete filled-grid steel deck, those expanding corrosion products push against the surrounding concrete and joint interfaces, causing the joints to widen or open. This is the primary visible effect on joints from corrosion, even though corrosion can also lead to reduced cross-section and other damage over time.

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