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

Table 5

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

Number	2D contour line of aggregate fracture surface	JRC^2D
1		8.4
2		10.3
3		12.7
4		13.4
5		14.3
6		15.7
7		14.3
8		15.1
9		16.2
10		11.6
11		12.6
12		13.8