Dynamic Modulus Prediction of a High-Modulus Asphalt Mixture

Table 3

The correlation coefficient.

No.	Independent variable	Correlation coefficient
1	X1, X2	0.857
2	X1, X3	0.891
3	X1, X4	0.960
4	X1, X5	0.890
5	X2, X3	0.592
6	X2, X4	0.775
7	X2, X5	0.776
8	X3, X4	0.667
9	X3, X5	0.638
10	X4, X5	0.782
11	X1, X2, X3	0.915
12	X1, X2, X4	0.970
13	X1, X2, X5	0.933
14	X1, X3, X4	0.969
15	X1, X3, X5	0.941
16	X1, X4, X5	0.980
17	X2, X3, X4	0.822
18	X2, X3, X5	0.959
19	X2, X4, X5	0.756
20	X3, X4, X5	0.907
21	X1, X2, X3, X4	0.998
22	X1, X2, X3, X5	0.986
23	X1, X2, X4, X5	0.993
24	X1, X3, X4, X5	0.996
25	X2, X3, X4, X5	0.999
26	X1, X2, X3, X4, X5	0.999