NM CID GF-2 Practice Questions - New Mexico CID GF-2 Bridges Contractor Examination Exam

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NMDOT Section 207 requires the top of the finished subgrade (top six inches of the roadbed) to be compacted to what density standard?

90 percent of AASHTO T 99 (Standard Proctor) 100 percent of relative density by ASTM D4253, oven-dry 95 percent of maximum density by AASHTO T 180 (Modified Proctor) No density test; proof-roll only

Correct Answer:

95 percent of maximum density by AASHTO T 180 (Modified Proctor)

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