Study on the Accurate Measurement and Quantitative Evaluation Methods of Aggregate Surface Roughness

Table 6

2D roughness of contour lines along the y-axis.

Number	2D contour line of aggregate fracture surface	JRC^2D
1		12.7
2		11.4
3		13.7
4		12.1
5		10.6
6		9.3
7		8.6
8		9.0
9		8.3
10		9.9
11		10.4
12		11.3