The Effects of Salt on Rheological Properties of Asphalt after Long-Term Aging

Table 6

Creep stiffness 𝑆- and 𝑚-value after PAV of SBS modified asphalt soaked in saline water.

SBS modified asphalt		0%; 0 d	0.3%; 7 d	0.3%; 15 d	1%; 15 d	1%; 30 d	3%; 1 d	3%; 30 d	5%; 1 d	5%; 7 d
−12	𝑆 (MPa)	84.3	100	88.3	88.0	90.0	93.6	100	94.9	118
	𝑚	0.399	0.375	0.368	0.413	0.377	0.400	0.395	0.399	0.389
−18	𝑆 (MPa)	197	218	247	204	224	231	193	251	231
	𝑚	0.316	0.334	0.329	0.314	0.340	0.317	0.331	0.328	0.335
−24	𝑆 (MPa)	508	474	473	424	391	492	240	526	587
	𝑚	0.230	0.241	0.226	0.210	0.176	0.228	0.219	0.248	0.253