AL Runway Practice Questions - Alabama Runway Contractor Examination Exam

Select fill placed in a utility trench under future runway pavement should be compacted:

Only at the surface after a single deep dump In thin lifts to specified density so the trench does not settle under aircraft loads By flooding only, with no mechanical compaction With frozen chunks for speed

Correct Answer:

In thin lifts to specified density so the trench does not settle under aircraft loads

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