ACI Adhesive Anchor Installer Practice Questions - ACI CRSI Adhesive Anchor Installer Exam

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The 2006 ceiling collapse in Boston's I-90 Connector tunnel (Big Dig) that killed a motorist was caused primarily by what failure mechanism?

Corrosion of stainless steel anchors Creep failure of adhesive anchors under sustained overhead tension Fatigue cracking of steel plates Fire damage to the ceiling panels

Correct Answer:

Creep failure of adhesive anchors under sustained overhead tension

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