Table 9 - 4 Layers Properties for Flexible Pavement Structures
Layer Type FAA Specification Item (^) Thickness (mm)
HMA Surface^1 Asphalt (HMA) P-401, HotPavements Mix^ 101.6 mm
Stabilized HMA Base^2
P- 401
127 mm
Crushed Aggregate Base3,^ P-209, CrushedBase Course^ Aggregate 236.9 mm
Subgrade CBR 47 Natural ground 0
Notes:
- Item P-401 is to be used as the surface course for pavements serving aircraft
weighing more than 12,500 pounds (5,670 kg). - If aircraft in the design traffic mix have gross loads of 100,000 pounds (45,359
kg) or more then the use of a stabilized base is required. - P-209, Crushed Aggregate Base Course.