Research on Rheological Properties by Desulfurized Rubber Powder/SBS Composite-Modified Asphalt and Road Performance of Its Mixture

Table 4

The performance indicators of SBS 4303.

Items	Value
Melt index (g/10 min)	11.0
300% tensile stress (MPa)	2.5
Elongation at break (%)	590
Hardness (degree A)	80
Tear-off permanent deformation	12
Volatile	0.50
S/B (mass ratio)	30/70