Decision of National and Provincial Highway Asphalt Pavement Structure Based on Value Engineering

Table 2

Life-cycle cost (Yuan/m²).

Service life period	PCI	Initial investment	Maintenance investment	Intermediate maintenance and overlay	Salvage value	Present value of maintenance	Present value of intermediate maintenance overlay	Present value of salvage value
0	100.00	100
1	99.79		1.01			0.94
2	97.18		1.17			1.00
3	92.47		1.45			1.15
4	87.23		1.77			1.30
5	82.17		2.07			1.41
6	77.50		2.35			1.48
7	73.29		2.60			1.52
8	69.50		2.83			1.53
9	66.09		3.03			1.52
10	63.01		3.22			1.49
11	60.24		3.39			1.45
12	99.79		1.01	71.8		0.40	28.5
13	97.18		1.17			0.43
14	92.47		1.45			0.49
15	87.23		1.77		−41.29	0.56		−13.02
	Total present value	100				16.67	28.5	−13.02
	Life-cycle cost	132.15 Yuan/m^2