AL Concrete Practice Questions - Alabama Concrete Contractor Examination Exam

What is the main purpose of a keyway cast in the top of a footing?

To drain groundwater from under the slab To provide a shear key interlock between footing and wall for lateral resistance To hold the vapor retarder in place To mark the location of control joints

Correct Answer:

To provide a shear key interlock between footing and wall for lateral resistance

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