Table 6.3 Layer Moduli Using Dynaflect Prediction Equations

 Test Mile Post predicted Moduli (ksi)
RoadTest Mile Post t(in.) E ) E E E
Road No. (in.) E (a) E E (b) E (C) E (d) E (e)
 Rod No in) 1 2 3 4


SR 26A
SR 26B
SR 26C
SR 26C
SR 24
US 301
US 301
US 301
US 441
US 441
I-10A
I-10B
I-10C
SR 15A
SR 15B
SR 715
SR 715
SR 12
SR 80
SR 80
SR 15C
SR 15C


11.912
11.205
10.168
10.166
11.112
21.580
21.585
21.593
1.236
1.241
14.062
2.703
32.071
6.549
4.811
4.722
4.720
 1.485
 Sec.1
 Sec.2
 0.055
 0.065


8.0
8.0
6.5
6.5
2.5
4.5
4.5
4.5
3.0
3.0
8.0
7.0
5.5
8.5
7.0
4.5
4.5
1.5
1.5
1.5
6.75
6.75


272.5
580.6
250.5
250.5
 --*
 454.2
 164.7
 --*
 --*
 221.1
1503.6
740.0
 99.8
1474.0
452.8
276.2
533.3
400.0
100.0
100.0
 72.4
 165.8


105.0
90.0
55.0
55.0
1-*
120.0
120.0
130.0
85.0
120.0
95.0
80.0
105.0
120.0
120.0
75.0
65.0
122.9
132.4
72.3
105.0
105.0


67.7
42.9
42.9
42.9
47.3
72.8
67.7
72.8
55.8
63.2
93.6
72.8
78.7
93.6
93.6
49.9
63.2
45.0
23.5
16.2
41.0
85.5


13.7
 7.7
 34.3
 32.2
 36.7
 36.7
 39.4
 39.4
 24.7
 27.3
113.7
62.1
36.7
 5.0
 8.0
 6.5
 5.7
 25.9
 6.1
 7.1
 5.3
 5.3


14.6
 8.5
 34.9
 32.9
 37.2
 37.2
 39.7
 39.7
 25.6
 28.1
108.4
61.1
37.2
 5.6
 8.8
 7.2
 6.4
 26.8
 6.9
 7.8
 6.0
 6.0


13.8
 7.9
 33.8
 31.8
 36.0
 36.0
 38.6
 38.6
 24.5
 27.0
108.0
60.0
36.0
 5.2
 8.2
 6.7
 5.9
 25.7
 6.4
 7.3
 5.5
 5.5


a) Actual or calculated modulus
b) E3 calculated from Equation 4.15
c) Equation 4.16 used to predict E4
d) Equation 4.17 used to predict E4
e) Equation 4.35 used to predict E4

* Prediction equations could not be used due to negative values
 of D1 D4