Determining Moisture-Unit Weight Relations of Soil (Compaction Test) - Soil Properties: Testing, Measurement, and Evaluation - page 168

As an option to the full length stud,
a 2 1/2"

3/8" stud may be used. Then
as an alternative construction, the collar
may be held down with a slotted bracket
attached to the collar and a pin in the mold.

May be
welded.

4 1/2"

4" ± .016 "

6" SQ

2 3/8"

VOL 0.0333

± .0005 cu.ft.

4.584"

3/8"

± 0.018"

1/4"

3/4"

1"

1/2"

0.1375"
0.0125" ±

May be
welded. PLAN ELEVATION

Figure 12-1 4-in. Cylindrical Mold [2]

As an option to the full length stud,
a 2 1/2"

3/8" stud may be used. Then
as an alternative construction, the collar
may be held down with a slotted bracket
attached to the collar and a pin in the mold.

May be
welded.

6 1/2"

8" SQ

6" ± .026"

2 3/8"

VOL 0.075

4.584"

±

0.0009 cu.ft.

± 0.018"

3/8"

1/4"

3/4"

1"

0.1375"
0.0125"

1/2"

±

May be
welded.

PLAN ELEVATION

Figure 12-2 6-in. Cylindrical Mold [2]

5.5-lb (24.4-N) hammer, to be operated manually or mechani-
cally to drop a free fall of 12 in. (305 mm) onto the soil (see
Figure 12-3)
Sample extruder
Balances
One with a 20-kilogram (kg) capacity and accuracy to 1 g
One with a 1,000-g capacity and accuracy to 0.01 g
Drying oven
Straightedge
Sieves (3 in., 3 ⁄ 4 in., 3 ⁄ 8 in., and No. 4)
Soil mixer (see Figure 12-5)
Miscellaneous mixing tools, such as a mixing pan, spoon, trowel,
etc. (see Figure 12-4).