AGGREGATES - Materials for Civil and Construction Engineers - page 181

T ABLE 5.5 Coarse Aggregate Grading Requirements for Concrete (ASTM C-33) (Copyright ASTM, reprinted with permission)

Amounts Finer Than Each Laboratory Sieve (Square Openings), Weight Percent

Size Nominal 4 in. 3 1/2 in. 3 in. 2 1/2 in. 2 in. 1 1/2 in. 1 in. 3/4 in. 1/2 in. 3/8 in. No. 4 No. 8 No. 16

No. Size (100 mm) (90 mm) (75 mm) (63 mm) (50 mm) (37.5 mm) (25.0 mm) (19.0 mm) (12.5 mm) (9.5 mm) (4.75 mm) (2.36 mm) (1.18 mm)

1 3 1/2 to 100 90 to 100 Á 25 to 60 Á 0 to 15 Á 0 to 5 Á Á Á Á Á

1 1/2 in.
(90 to
37.5 mm)

2 2 1/2 to Á Á 100 90 to 100 35 to 70 0 to 15 Á 0 to 5 Á Á Á Á Á

1 1/2 in.
(63 to
37.5 mm)

Á 3 2 to 1 in. Á Á Á 100 90 to 100 35 to 70 0 to 15 Á 0 to 5 Á Á Á

(50 to
25.0 mm)

357 2 in. to Á Á Á 100 95 to 100 Á 35 to 70 Á 10 to 30 Á 0 to 5 Á Á

No. 4
(50 to
4.75 mm)

4 1 1/2 to Á Á Á Á 100 90 to 100 20 to 55 0 to 15 Á 0 to 5 Á Á Á

3/4 in.
(37.5 to
19 mm)

467 1 1/2 in. to Á Á Á Á 100 95 to 100 Á 35 to 70 Á 10 to 30 0 to 5 Á Á

No. 4
(37.5 to
4.75 mm)