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

Table 2

Statistical analysis results of the viscosity value as a function of SIS content: (a) 135°C and (b) 180°C.

Viscosity		SIS 0%	SIS 5%	SIS 10%	SIS 15%	SIS 20%
(a)	SIS 0%	—	S	S	S	S
	SIS 5%		—	S	S	S
	SIS 10%			—	S	S
	SIS 15%				—	S
	SIS 20%					—
(b)	SIS 0%	—	N	S	S	S
	SIS 5%		—	S	S	S
	SIS 10%			—	S	S
	SIS 15%				—	N
	SIS 20%					—

N: nonsignificant; S: significant.