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Multiquip C30HD User Manual

Page 21

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C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 21

A.S.T.M. STANDARD SPECIFICATION FOR GRADING AGGREGATE

Screen

Size of Operating

Percentage Passing

U.S.

Metric

(by weight)

FINE AGGREGATE: Referred to as washed concrete sand.

3/8”

3/8”

9.51mm

100%

#4

4760 micron

4.76 mm

95 to 100%

#8

2380 micron

2.38 mm

80 to 100%

#16

1190 micron

1.19 mm

50 to 85%

#30

590 micron

1.19 mm

50 to 85%

#50

297 micron

297 µ

10 to 30%

#100

149 micron

149 µ

2 to 10%

3/8” (9.51 mm) PEA GRAVEL AGGREGATE: Referenced to as #4 Rock or Gravel or 1/2” minus (12.7 mm) size.

1/2”

1/2”

12.7 mm

100%

3/8”

3/8”

9.51 mm

85 to 100%

#4

4760 micron

4.76 mm

10 to 30%

#8

2380 micron

2.38 mm

0 to 10%

#16

1190 micron

1.19 mm

0 to 5%