Effect of Aromatic Petroleum Resin on Microstructure of SBS Modified Asphalt

Table 2

Technical indexes of SBS.

Technical indexes	Linear-SBS	Star-SBS
S/B	30/70	40/60
Volatile, %	0.6	0.6
Ash, %	0.13	0.15
300% constant tensile stress, MPa	2.1	2.3
Tensile strength, MPa	16.34	8.2
Elongation at break, %	813	573
Permanent set, %	28.5	38.4
Shore hardness, A	76	71
Melt index, g/10 min	1.97	0.86