AZ ROC B B-3 CR-61 General Residential, Remodeling And Carpentry Practice Questions - Arizona ROC B B-3 CR-61 General Residential, Remodeling And Carpentry Examination Exam

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Per IRC R401.4 and standard geotechnical specifications, engineered fill placed under building footings and structural slabs-on-grade must be compacted to what minimum percentage of Maximum Dry Density (MDD) as determined by the Modified Proctor test (ASTM D1557)?

85% Modified Proctor density 90% Modified Proctor density 95% Modified Proctor density 100% Modified Proctor density

Correct Answer:

95% Modified Proctor density

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