A nuclear density test on a utility trench backfill lift fails the specified compaction. The next truckload of base course is already waiting. What should happen?
Correct Answer
B) Rework moisture and density, recompact the lift, and retest before placing the next lift
A failed backfill lift must be corrected and retested before it is covered, because later lifts cannot reliably fix inadequate density below. Other choices bury the deficiency or average away a localized failure.
Why This Is the Correct Answer
A failed backfill lift must be corrected and retested before it is covered, because later lifts cannot reliably fix inadequate density below. Other choices bury the deficiency or average away a localized failure.
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