UFC 3-250-03
15 May 2001
Table 6-1
Gradation for 50 millimeter- (2-inch)- Thick Macadam Wearing Course
Percent Passing by Weight
Coarse
Key
Fine
Sieve Size
Aggregate
Aggregate
Aggregate
50 mm (2 inch)
100
--
--
38 mm (1-1/2 inch)
90-100
--
--
25 mm (1 inch)
20-55
--
--
19 mm (3/4 inch)
0-15
100
--
12.7 mm (1/2 inch)
--
90-100
100
9.5 mm (3/8 inch)
0-5
40-70
86-100
4.75 mm (No. 4)
--
0-15
10-30
2.36 mm (No. 8)
--
0-5
0-10
1.18 mm (No. 16)
--
--
0-5
Table 6-2
Gradation for 64-millimeter- (2-1/2-inch)- Thick Asphalt Macadam Wearing Course
Percent Passing by Weight
Coarse
Key
Fine
Sieve Size
Aggregate
Aggregate
Aggregate
64 mm (2-1/2 inch)
100
--
--
50 mm (2 inch)
90-100
--
--
38 mm (1-1/2 inch)
35-70
--
--
25 mm (1 inch)
0-15
100
--
19 mm (3/4 inch)
--
90-100
--
12.7 mm (1/2 inch)
0-5
--
100
9.5 mm (3/8 inch)
--
20-55
86-100
4.75 mm (No. 4)
--
0-15
10-30
2.36 mm (No. 8)
--
0-5
0-5
6-3
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