Effect of Aromatic Petroleum Resin on Microstructure of SBS Modified Asphalt

Table 6

Technical performance of SBS modified asphalt with different contents of APR.

APR content, %	Penetration at 25°C, 0.1 mm	48 h softening point difference, °C	Viscosity at 135°C, Pa·S	Softening point, °C	Ductility at 5°C, cm
0	65.4	3.4	1.688	80.6	34.6
5	63.5	2.9	1.721	79.5	36.5
10	62.4	2.2	1.796	79.1	37.7
15	61.9	1.6	1.875	80.3	38.4
20	61.2	1.0	1.901	79.5	40.3