30 June 2001
c. Army Airfields. On Class IV airfields with runways greater than 1,525 meters (5,000 feet), proof
roll top of subbase and each layer of crushed aggregate base course in type A traffic areas and center
23 meters (75 feet) of runways with 30 coverages.
10. COMPACTION REQUIREMENTS FOR ARMY AND AIR FORCE RIGID PAVEMENT AGGREGATE
BASE COURSES. High densities are essential to keep future consolidation to a minimum, but thin
aggregate base courses placed on yielding subgrades are difficult to compact to high densities.
Therefore, the design density in the aggregate base-course materials should be the maximum that can
be obtained by practical compaction procedures in the field but not less than:
a. 95 percent of ASTM D 1557 maximum density for aggregate base courses less than
254 millimeters (10 inches) thick.
b. 100 percent of ASTM D 1557 maximum density in the top 152 millimeters (6 inches) and
95 percent of ASTM D 1557 maximum density for the remaining thickness for aggregate base courses
254 millimeters (10 inches) or more in thickness.
11. COMPACTION REQUIREMENTS FOR NAVY AND MARINE CORPS RIGID PAVEMENT
AGGREGATE BASE COURSES. Compact granular and cement-treated base courses to 100 percent of
maximum density according to ASTM D 1557 and D 558, respectively. Compact asphaltic concrete
base courses to 97 percent of the maximum density as determined from the Marshall mix design