Table 10 Test results for fatigue cracking parameter of bitumens with CNTs and NGO.
Condition | assumption | Levene’s test for equality of variances | t-Test for equality of means | |||
|---|---|---|---|---|---|---|
F | Sig | t | df | Sig. (2-tailed) | ||
PG 58–22 + 0.3% CNT | Equal variances assumed | 0.062 | 0.809 | 2.879 | 10 | 0.016 |
Equal variances not assumed | - | - | 2.879 | 9.972 | 0.016 | |
PG 58–22 + 0.6% CNT | Equal variances assumed | 0.028 | 0.870 | 3.392 | 10 | 0.007 |
Equal variances not assumed | - | - | 3.392 | 9.971 | 0.007 | |
PG 58–22 + 0.3% NGO | Equal variances assumed | 0.046 | 0.834 | 3.010 | 10 | 0.013 |
Equal variances not assumed | - | - | 3.010 | 9.998 | 0.013 | |
PG 58–22 + 0.6% NGO | Equal variances assumed | 0.046 | 0.835 | 3.605 | 10 | 0.005 |
Equal variances not assumed | - | - | 3.605 | 9.996 | 0.005 | |
