Influence of the Chemical Composition of Asphalt and the 3D Morphology of the Aggregate on Contact Surface Adhesion

Table 5

Shape feature of the aggregate samples.

Lithology	Number of aggregate samples	Sphericity S				Shape factor SF
		Max	Min	Average	Standard deviation	Max	Min	Average	Standard deviation
Granite	50	1.35	0.68	0.97	0.91	0.69	0.86	14.1	9.7
Basalt	50	1.36	0.73	1.00	0.88	0.67	0.84	15.7	11.3
Limestone	50	1.43	0.67	0.99	0.89	0.68	0.82	18.3	11.1