AL Runway Practice Questions - Alabama Runway Contractor Examination Exam

Unsuitable material discovered in the runway subgrade should generally be:

Left in place and paved over to save time Undercut and replaced or reworked as directed to produce a stable, compactable foundation Covered with geotextile only, with no densification Mixed with liquid asphalt at the subgrade surface

Correct Answer:

Undercut and replaced or reworked as directed to produce a stable, compactable foundation

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