30 June 2001
AC surface over 152 millimeters (6 inches) of 80 CBR base. Blast protection pavement design should
be checked for adequacy for crash rescue vehicles.
(a) Fixed-wing aircraft. Pave the first 3 meters (10 feet) of runway shoulders. Design the
pavement thickness for 75 percent of the gross weight of the design aircraft at 200 passes. Surface with
50 millimeters (2 inches) of AC on a minimum 152-millimeter (6-inch) base of 80 CBR. Provide the outer
43 meters (140 feet) of runway shoulders and all taxiway shoulders with dust and erosion control using
vegetative cover, liquid palliative, such as asphalt, or a combination of methods.
(b) Rotary-wing aircraft. Pave the first 7.5 meters (25 feet) of shoulder adjacent to
helicopter pads, runways, and taxiways with 50 millimeters (2 inches) of AC on a minimum
152-millimeter (6-inch) base course of 60 CBR. Provide the outer 15 meters (50 feet) of shoulder with a
liquid palliative or vegetative cover, or a combination of methods.
JUNCTURE BETWEEN RIGID AND FLEXIBLE PAVEMENTS. (See paragraph 12.j of Chapter 12.)