Improvement of Engineering Properties of Asphalt Binder and Mixture by Using SBS Additive Material

Table 3

Test results for asphalt binder mixed with SBS.

SBS (%)	0	1	2	3	4	5	Spec
Asphalt grade	80/100	80/100	80/100	80/100	80/100	80/100
Penetration 0.1 mm	90	72	52	49	42	40
Softening point (°C)	46	50	65	76	86	87
Ductility (cm)	150	Nil	Nil	Nil	Nil	Nil
Elastic recovery (%)	3	42	82	94	95	96
Viscosity c.p, 135°C	252	542	889	1171	1910	2819	3000
Flash point (°C)	277	294	295	297	298	299	230
Specific gravity	1.058	1.059	1.060	1.055	1.048	1.035
Penetration index	−0.80	−0.30	2.08	3.71	4.64	4.64
Storage stab./soft. pt	Nil	U50D50	U70D60	U80D70	U92D79	U95D80
RTFOT/penetration	43	35	25	31	29	26
RTFOT/soft. point	58	66	71	81	87	87
RTFOT/loss on heat (%)	0.81	0.79	0.77	0.75	0.74	0.74	<1