Table 6. Testing sequence for VAOT base/subbase mate-
Table 7. Test sample densities, moisture contents,
rial (150-mm-diameter sample).
and void ratios (300-mm-diameter sample).
Confining Maximum Cyclic
Contact
Number of
Optimum
Sequence
pressure axial stress stress
stress
load
%
density
Test density
Void ratio
no.
(kPa)
(kPa)
(kPa)
(kPa)
applications
(kg/m3)
Rep 1
Rep 2
Rep 1 Rep 2
crushed
0
103.4
103.4
93.1
10.3
5001000
100
2319
2288
2433
0.158
0.089
1
20.7
20.7
2.7
2.1
100
75
2346
2288
2288
0.155
0.158
2
20.7
41.4
5.4
4.1
100
50
2349
2218
2376
0.190
0.1151
3
20.7
62.1
8.1
6.2
100
25
2381
2277
2376
0.159
4
34.5
34.5
31.0
3.5
100
0
2404
2325
2348
0.137
0.129
5
34.5
68.9
62.0
6.9
100
6
34.5
103.4
93.1
10.3
100
Optimum
7
68.9
68.9
62.0
6.9
100
moisture
Target moisture
8
68.9
137.9
124.1
13.8
100
%
content
content (%)
9
68.9
206.8
186.1
20.7
100
crushed
(%)
Rep 1
Rep 2
10
103.4
68.9
52.0
6.9
100
11
103.4
103.4
93.1
10.3
100
100
6.0
5.4
4.9
12
103.4
206.8
186.1
20.7
100
75
5.0
5.0
5.0
13
137.9
103.4
93.1
10.3
100
50
4.6
4.6
4.6
14
137.9
137.9
124.1
13.8
100
25
5.0
5.1
15
137.9
275.8
248.2
27.6
100
0
6.0
4.9
4.9
1000
y=2.1258x0.7248
R2 = 0.99
100
100% Crushed (e = 0.158)
100% Crushed - 2nd (e = 0.089)
10
100
1000
Bulk Stress, θ (kPa)
a. 100% crushed aggregates.
1000
y = 0.9964x0.8494
R2 = 0.96
100
75% Crushed (e = 0.155)
75% Crushed - 2nd (e = 0.158)
0
1000
Bulk Stress, θ (kPa)
100
b. 75% crushed aggregates.
Figure 14. Resilient modulus as a function of bulk stress.
11
Previous Page
