AZ ROC CR-66 Seal Coating Practice Questions - Arizona ROC CR-66 Seal Coating Examination Exam

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What is the standard minimum relative compaction requirement for subgrade soil prior to placing aggregate base course for flexible pavement?

95% of maximum dry density (ASTM D698 / D1557) 85% of maximum dry density (ASTM D698 / D1557) 90% of field wet density 100% of uncompacted loose weight

Correct Answer:

95% of maximum dry density (ASTM D698 / D1557)

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