Effects of Paving Technology, Pavement Materials, and Structures on the Fatigue Property of Double-Layer Pavements

Table 7

Equivalent fatigue lives of specimens under different failure probabilities.

Pavement structure		Paving technologies	Failure probability (%)	Equivalent fatigue life () under the following stress levels S
Surface layer	Bottom layer			0.3	0.4	0.5	0.6	0.7
4-cm AC-13	6-cm AC-20	Traditional paving	5	3918	1227	469	349	195
			50	4776	1755	719	448	287
		Double-layer paving	5	3698	1095	758	297	150
			50	6061	1717	829	506	267
4-cm AC-16	6-cm AC-25	Traditional paving	5	4098	1187	420	286	108
			50	4538	1466	558	374	189
		Double-layer paving	5	4879	1285	639	424	177
			50	5078	1580	976	589	237
3-cm AC-13	7-cm AC-20	Traditional paving	5	5788	1395	532	437	208
			50	6054	1796	745	538	298
		Double-layer paving	5	6225	2152	855	618	344
			50	8321	2559	1130	728	492
3-cm AC-16	7-cm AC-20	Traditional paving	5	4529	1406	558	388	205
			50	5189	1751	668	498	268
		Double-layer paving	5	4870	1712	710	471	202
			50	6467	2057	1026	521	327