Comparison and Analysis of the Performances and Mechanisms of Recycled Asphalt Incorporating High-Permeability Rejuvenating Agent

Table 6

Functional group indices for different states of asphalt.

Recycled asphalt	BI	AI	CI	DI
Matrix asphalt	0.2342	0.03654	0.0067	0.0038
Aged matrix asphalt	0.2243	0.04331	0.0983	0.0047
Recycled matrix asphalt + CA	0.2431	0.02534	0.00591	0.0037
Recycled matrix asphalt + A	0.2371	0.03893	0.00602	0.0035
SBS-modified asphalt	0.2401	0.04663	0.02361	0.0039
Aged SBS-modified asphalt	0.2324	0.05738	0.07907	0.0059
Recycled SBS-modified asphalt + CA	0.2548	0.04269	0.01334	0.0036
Recycled SBS-modified asphalt + A	0.2524	0.04476	0.03086	0.0035