UFC 3-260-03
15 Apr 01
Table 5-1
Equivalency Factors for Army and Air Force Pavements
Equivalency Factors
Material
Base
Subbase
Unbound Crushed Stone
1.00
2.00
-1
Unbound Subbase
1.00
Asphalt-Stabilized
All-Bituminous Concrete
1.15
2.30
GW, GP, GM, GC
1.00
2.00
-1
SW, SP, SM, SC
1.50
Cement-Stabilized
GW, GP, SW, SP
1.15
2.30
GC, GM
1.00
2.00
-1
ML, MH, CL, CH
1.70
-1
SC, SM
1.50
Lime-Stabilized
-1
ML, MH, CL, CH
1.00
-1
SC, SM, GC, GM
1.10
Lime, Cement, Fly Ash Stabilized
-1
ML, MH, CL, CH
1.30
-1
SC, SM, GC, GM
1.40
1
Not used as base course.
Table 5-2
Equivalency Factors for Navy and Marine Corps Pavements
Material
Equivalency Factors
25 millimeters (1 inch) of lime-stabilized subbase
30 millimeters (1.2 inches) of unstabilized
may be substituted for
subbase course
25 millimeters (1 inch) of cement-stabilized
30 millimeters (1.2 inches) of unstabilized
subbase may be substituted for
subbase course
25 millimeters (1 inch) of cement-stabilized base
38 millimeters (1.5 inches) of unstabilized base
may be substituted for
course
25 millimeters (1 inch) of bituminous base may be
38 millimeters (1.5 inches) of unstabilized base
substituted for
course
5-8
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