Tension (kPa)
Tension (kPa)
1 0
40
20
0
40
20
10
101
Class 3 Blended
Sample 1171
γ d = 1.992 Mg/m3
γd = 1.742 Mg/m3
0
10
Gs = 2.69
2
G s = 2.70
10
Calculated
Calculated
Extraction
Extraction
1
10
103
2
10
4
10
103
5
10
4
10
5
6
10
10
0
100
200
300
400
500
0
100
200
300
400
500
Tension (cm water)
Tension (cm water)
a. Subgrade sample 1171 (563).
d. Class 3 special blended.
Tension (kPa)
Tension (kPa)
1 0
40
1 0
40
20
20
10
10
Class 3 Stockpile
Sample 1206
γ d = 2.029 Mg/m3
γ d = 1.690 Mg/m3
10 0
G s = 2.69
2
G s = 2.70
10
Calculated
Calculated
Extraction
Extraction
1
10
Absorption
Absorption
3
10
10 2
4
10
3
10
5
10
10 4
5
6
10
10
0
100
200
300
400
500
0
100
200
300
400
500
Tension (cm water)
Tension (cm water)
e. Class 3 special stockpile.
b. Subgrade sample 1206 (565).
Tension (kPa)
Tension (kPa)
1 0
40
2 0
40
20
20
10
10
Class 6 Blended
Sample 1232
γd = 1.839 Mg/m3
γ d = 1.837 Mg/m3
0
10
Gs = 2.79
Gs = 2.71
3
Calculated
Calculated
10
Extraction
Extraction
1
10
Absorption
102
4
10
3
10
5
10
104
105
10 6
0
100
200
300
400
500
0
100
200
300
400
500
Tension (cm water)
Tension (cm water)
c. Subgrade sample 1232 (566).
f. Class 6 special blended
Figure 7. Tension vs. hydraulic conductivity curves. Solid line represents Gardner's equation approxi-
mation of the extraction data.
15
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