Preparation and Characterization of High Modulus Agent Modified Asphalt and Its High Modulus Mixture

Table 3

Technical indexes of SBS asphalt.

Indicators	Unit	Standard index	Test values	Standard
Penetration (25°C, 100g, 5s)	0.1	60–80	71.7	T0604
Softening point	°C	≥55	72	T0606
Ductility (5 cm/min, 15°C)	Cm	≥30	39	T0605
After the thin-film oven test (TFOT)
Loss on heating	%Wt.	≤±1.0	−0.019	T0609
Retained penetration after TFOT	%	≥60	84
Retained ductility after TFOT	Cm	≥20	32