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TABLE NO 3
GRADATION SPECIFICATION LIMIT FOR BITUMINOUS PAVEMENTS

ASPHALT MIXTURE - SURFACE COURSE - HIGH & LOW PRESSURE TIRES
Percent passing (by weight)

Sieve 2 inch maximum 1 1/2 inch maximum 1 inch maximum

Size Gradation 8 Gradation 9 Gradation 10
2” A B C A B C A B C

100 100 100 - - - - - -
1 1/2” 79-95 81-95 82-96 100 100 100 - - -

1” 68-84 70-86 71-88 73-95 75-95 79-95 100 100 100

3/4” 60-75 62-78 64-79 64-83 67-85 70-87 72-95 75-95 81-96
1/2” 52-67 54-69 56-72 55-73 59-77 62-80 61-82 65-85 69-89

3/8” 46-40 48-63 50-66 48-65 52-69 55-73 58-72 58-76 62-81

4# 32-47 34-49 37-52 35-51 39-55 42-58 38-54 43-59 48-66
8# 22-37 24-39 27-42 26-40 29-45 33-49 28-43 32-47 37-53

16# 17-30 18-31 20-34 19-32 22-36 25-39 20-34 24-38 28-43

30# 12-23 14-24 15-26 14-25 16-27 18-30 15-27 17-29 20-33
50# 8-18 9-18 10-19 10-18 11-20 12-21 10-20 11-22 14-24

100# 5-12 5-13 6-14 5-12 6-13 7-14 7-14 7-15 8-16
200# 3-7 3-7 3-7 3-7 3-7 3-7 3-7 3-7 3-7