Research Article

Effects of UV Aging on Physical Properties and Physicochemical Properties of ASA Polymer-Modified Asphalt

Table 6

Functional group index of ASA-modified asphalt at different UV aging stages.

Aging timeFunctional group index

76.25 h0.05670.02780.0354
152.5 h0.07360.04750.063
228 h0.14020.12160.1463
305 h0.06450.07880.044