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

Table 1

Technical indices and chemical components of the matrix asphalt.

Test item	Penetration (25°C) (10^−1 mm)	Softening point (°C)	Ductility (10°C) (cm)	Saturated fraction (%)	Aromatic fraction (%)	Resin (%)	Asphaltene (%)
A1	72.6	48.8	125	19.23	31.57	48.50	0.70
A2	65.4	45.6	27	13.45	44.14	34.61	7.80
A3	72.1	44.3	23	26.50	23.33	47.26	2.91
B1	87.3	47.5	＞150	26.58	27.44	45.18	0.80
B2	89.8	47.1	111	14.01	41.75	35.92	8.32
B3	86.0	46.3	72.6	12.62	54.03	24.82	8.53
C1	111.0	43.6	＞150	24.06	26.08	49.16	0.70
C2	106.8	44.5	＞150	28.49	37.44	27.50	6.57
C3	102.5	44.9	101	16.50	37.73	31.63	14.14