Equivalent Resilient Modulus Inversion and Calculation of Different Asphalt Pavement Structures

Table 6

Calculation of equivalent resilient modulus of the top surface of structure S1.

Load layer	Determined method		Base layer	Cushion layer and roadbed
Lower layer	Inversion modulus value (MPa)		8417	489
	Equivalent resilient modulus	Theoretical calculation method (MPa)	3039
		Inversion method (MPa)	1845
		Deviation value (%)	65
Middle layer	Inversion modulus value (MPa)		8417	185
	Equivalent resilient modulus	Theoretical calculation method (MPa)	1858
		Inversion method (MPa)	1336
		Deviation value (%)	39
Upper layer	Inversion modulus value (MPa)		8417	195
	Equivalent resilient modulus	Theoretical calculation method (MPa)	1913
		Inversion method (MPa)	1344
		Deviation value (%)	42