Analysis of the Influence of SBS Content and Structure on the Performance of SBS/CR Composite Modified Asphalt

Table 2

Penetration test results of asphalt binder.

Asphalt type	Penetration (0.1 mm)					PI
	15°C	25°C	30°C	Regression equation	R^2
CRMA	16.83	36.37	51.67	lgP = 0.0326T + 0.7391	0.999	1.41
SSA1	28.80	55.23	76.90	lgP = 0.0284T + 1.0329	0.999	2.40
SSA2	28.00	52.03	71.60	lgP = 0.0271T + 1.0394	0.999	2.74
SSA3	27.67	49.47	67.33	lgP = 0.0257T + 1.0557	0.999	3.13
SSA4	25.37	45.60	59.13	lgP = 0.0246T + 1.0367	0.998	3.45
LSA1	25.50	54.87	76.47	lgP = 0.0298T + 0.9920	0.999	2.05
LSA2	26.60	51.07	67.60	lgP = 0.0274T + 1.0160	0.998	2.66
LSA3	26.37	48.17	65.73	lgP = 0.0264T + 1.0243	0.999	2.93
LSA4	22.13	42.40	55.90	lgP = 0.0253T + 0.9910	0.999	3.25