Civil · C-CB5FR

Typical Asphalt Pavement Section

Materials

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A typical asphalt pavement section includes cut and fill slopes. The assembly consists of a 1.5-inch asphalt concrete surface course over an asphalt base course and tack coat, supported by an aggregate base course, a type I separator geotextile, and compacted sub-grade. Layer thicknesses vary depending on the traffic index, with specific schedules provided for parking lots and plant roads. Slopes transition from the centerline outward at 12:1 to 3:1 max slopes at the shoulders. A general note mandates that the surface course and tack coat are placed only after completing all other contract work.

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