Reflection Crack Analysis of Asphalt Overlay on Cement Concrete Pavement Based on XFEM

Table 1

Asphalt mixture aggregate gradation design.

Aggregate type	Mass percentage (%) through the following sieves (mm)
	16	13.2	9.5	4.75	2.36	1.18	0.6	0.3	0.15	0.075
1# (11∼16 mm)	100	69.1	5.3	3.7	1.7	1.4	1.1	0.8	0.5	0.2
2# (6∼11 mm)	100	100	81.3	3.6	1.3	0.9	0.8	0.7	0.6	0.5
3# (3∼6 mm)	100	100	100	80.4	9.6	4.3	3.5	2.9	2.2	1.0
4# (0∼3 mm)	100	100	100	99.8	89.1	66.9	46.8	34.9	22.2	8.4
Mineral powder	100	100	100	100	100	100	100	99.8	91.1	76.4
Synthetic gradation	100	95.1	80.7	59.8	41.8	31.6	23.2	18.1	12.4	6.1