Effect of Silicone Oil on Dispersion and Low-Temperature Fracture Performance of Crumb Rubber Asphalt

Table 4

T test results of displacement at different test temperature.

Asphalt binder type	Mean (mm)	N	Std. deviation	Std. error mean	T	Df	Sig.
Test temperature: −12°C
Neat + CR	3.6009	3289	2.15842	0.3764	60.54	3288	0.001
Neat + CR + SO	3.2363	3289	1.85615	0.3237
Test temperature: −18°C
Neat + CR	1.9971	2027	1.13464	0.02520	8.061	2026	0.001
Neat + CR + SO	1.9999	2027	1.14478	0.02543
Test temperature: −24°C
Neat + CR	2.2378	1553	1.14058	0.02894	−83.146	1552	0.001
Neat + CR + SO	1.5337	1553	0.87921	0.02231