NM CID GF-9 Practice Questions - New Mexico CID GF-9 Utility Lines Contractor Examination Exam

Controlled low-strength material (flowable fill) is used in a utility trench primarily to:

Replace the need for a pipe gasket Fill irregular voids and reduce settlement where compaction equipment cannot reach, while remaining weak enough to re-excavate later if specified Serve as the potable water inside the main Increase OSHA soil type from C to stable rock

Correct Answer:

Fill irregular voids and reduce settlement where compaction equipment cannot reach, while remaining weak enough to re-excavate later if specified

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