Advances in Materials Science and Engineering

Research Article

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

Fatigue test results after examination by the Weibull distribution model.


Pavement structure	Paving technologies	Coefficients	Stress levels S corresponding to Weibull model coefficients
Pavement structure	Paving technologies	Coefficients	0.7	0.6	0.5	0.4	0.3

4-cm AC-13/6-cm AC-20	Traditional paving	M₀	6.7084	10.455	6.0927	7.2798	13.153
		ln u	38.334	64.190	40.442	54.749	111.79
		R²	0.9276	0.8772	0.9524	0.8626	0.9296
	Double-layer paving	m₀	4.5249	4.8765	29.370	5.7919	5.2682
		ln u	25.654	30.728	197.73	43.507	46.251
		R²	0.9858	0.9668	0.9978	0.8923	0.9934

4-cm AC-16/6-cm AC-25	Traditional paving	m₀	4.6639	9.6552	9.1773	12.355	25.545
		ln u	24.823	57.566	58.414	90.435	215.46
		R²	0.9999	0.8925	0.9690	0.9867	0.9847
	Double-layer paving	m₀	8.8248	7.9006	6.1481	12.607	65.069
		ln u	48.635	50.765	42.684	93.217	555.58
		R²	0.9905	0.9971	0.9849	0.9969	0.9804

3-cm AC-13/7-cm AC-20	Traditional paving	m₀	7.2826	12.512	7.7191	10.307	57.928
		ln u	41.851	79.032	51.415	77.603	504.83
		R²	0.9254	0.9924	0.8228	0.9995	0.9756
	Double-layer paving	m₀	7.2971	15.937	9.3307	15.04	8.9709
		ln u	45.591	105.4	65.958	118.39	81.343
		R²	0.8216	0.7877	0.9602	0.9769	0.9997

3-cm AC-16/7-cm AC-20	Traditional paving	m₀	9.7279	10.367	14.447	11.864	19.124
		ln u	54.760	64.756	94.339	88.969	163.96
		R²	1.000	0.9868	0.9123	0.9995	0.9999
	Double-layer paving	m₀	5.4063	26.043	7.0776	14.187	9.1763
		ln u	31.667	163.27	49.439	108.6	80.884
		R²	0.9191	0.9952	0.9237	0.9436	0.9994