Prediction of Low-Temperature Rheological Properties of SBS Modified Asphalt

Table 2

Test parameters and their indexes of SBS modifier.

Type	Index
	Structure	Block ratio (S/B)	Tensile strength (MPa)	Elongation (%)	Permanent deformation (%)	Hardness	Content (%)
DG2	Star	40/60	>12.0	>650	<30	>79	3.6–5.2
T161B	Star	30/70	>18.0	>630	<25	>78	3.6–5.2
1320-115	Linear	30/70	>18.0	>750	<40	>70.5	3.6–5.2
YS4303	Star	30/70	>12.0	>590	<45	>65	3.6–5.2
YH791	Linear	30/70	>18.0	>700	<45	>60	3.6–5.2

Note. S/B is the abbreviation of styrene and butadiene. Test temperature was −18°C.