Effect of Material Composition on Cohesion Characteristics of Styrene-Butadiene-Styrene-Modified Asphalt Using Surface Free Energy

Table 2

Properties of SBS modifiers.

Index	Liner	Branched
Block ratio (S/B)	30/70	40/60
Volatile content %	0.50	0.50
300% Tensile stress, MPa	1.7	1.7
Tensile strength, MPa	12.0	12.0
Elongation at break %	700	600
Shore hardness, A	75 ± 7	82 ± 7
Melt flow rate (g/10 min)	0.50~5.00	0.00~1.00