AZ ROC CR-21 Hardscaping & Irrigation Practice Questions - Arizona ROC CR-21 C-21 R-21 Hardscaping And Irrigation Systems Examination Exam

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What is the minimum compaction density required for the dense-graded aggregate base layer beneath a residential paver driveway?

98% Standard Proctor Density (ASTM D698) 85% Standard Proctor Density (ASTM D698) 90% Modified Proctor Density (ASTM D1557) 75% Relative Density (ASTM D4253)

Correct Answer:

98% Standard Proctor Density (ASTM D698)

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