Geology Reference
In-Depth Information
[B] In-Place Density and Unit Weight
(1)
Mass of apparatus mass of sand (before use)
g
(2)
Mass of apparatus mass of remaining sand (after use)
g
(3)
Mass of sand used in test, M 6
g
(4)
Mass of sand to fill funnel and base plate, M 7
g
(see “Calibration Data”)
(5)
Mass of sand used in test hole, M 6 M 7
g
(6)
Density of sand, 1
g/mL (see “Calibration Data”)
M 6
M 7
(7)
Volume of test hole, V
mL
r 1
(8)
Wet mass of soil from hole mass of pan
g
(9)
Mass of pan
g
(10)
Wet mass of soil from hole, M 4
g
(11)
Moisture content in soil from test hole, w
%
M 4
(12)
Dry mass of soil from test hole,
M 5
g
1
0.01
21
w
100
2
M 5
V
(13)
Dry density of soil in place,
r 2
g/mL
lb/ft 3
(14)
Dry unit weight of soil in place, 2 62.43 2
210
 
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