Optimum Moisture Content = 8.8%
Optimum Moisture Content = 8.4%
Maximum Dry Unit Weight = 2.06 Mg/m3 (128.7 pcf)
Maximum Dry Unit Weight = 1.91 Mg/m3 (119.1 pcf)
60
2.10
6
50
2.00
5
Dry Density
40
1.90
4
Dry Density
30
1.80
3
CBR
20
1.70
2
10
1.60
CBR
0
1.50
0
16 6
8
10
12
14
16
6
8
10
12
14
% Moisture Content
% Moisture Content
Figure B3. Slope trail.
Figure B2. Pentagonal loop trail.
100
90
80
70
60
50
40
30
20
10
0
100
10
1
0.1
0.01
0.001
Grain Size (mm)
% +3"
% Gravel
% Sand
% Silt
% Clay
0.0
47.0
41.7
8.3
3.0
LL
PI
D85
D60
D50
D30
D15
D10
Cc
Cu
none
none
13.9
6.38
4.07
0.512 0.112 0.0595 0.69
107.2
Material Description
USCS
AASHTO
Gravel
GP-GM
A1
Figure B4. Typical grain size distribution.
37
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