Rheological and Morphological Characterization of Styrene-Isoprene-Styrene (SIS) Modified Asphalt Binder

Table 1

Properties of SIS modifier.

Properties	Test method	Units	Typical value
Styrene	TSRC/DEXO method	wt%	15
Diblock content	TSRC/DEXO method	wt%	18
Melt flow rate (200°C/5 kg)	ASTM D1238	g/10 min	11
Solution viscosity	ASTM D2196	cps	1240
Ash	ASTM D5630	wt%	0.3
Tensile strength	TSRC/DEXO method	MPa	25
300% modulus	TSRC/DEXO method	MPa	1.1
Elongation	TSRC/DEXO method	%	1250
Hardness	ASTM D2240	Shore A	33
Bulk density	ASTM D1895	g/cm^3	0.55 (4113A)
Specific gravity	ASTM D792	kg/m^3	0.92