Micro/Nanoscale Study on the Effect of Aging on the Performance of Crumb Rubber Modified Asphalt

Table 5

Surface roughness parameter statistics of O-CR and A-CR.

	Rq (nm)	ISAD (%)	Sds ()
O-CR	2.14	0.0214	2.20
A-CR	1.29	0.0103	1.80