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

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Study for the NHI Bridge Inspection Course 130055. Prepare with flashcards and multiple choice questions, each question includes hints and explanations. Ensure you're ready for your 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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