![]() Based on the back-calculation results at different loading conditions, the master curve of the field asphalt layer was determined. An finite element (FE) model of the pavement section was created, which was used to back-calculate the moduli of asphalt pavement layers using the measured strain data. Subsequently, the relationship between the motion speed and the loading frequency was established. The loading frequencies of the asphalt layer subject to different motion speeds were calculated based on the duration of measured strain pulses. Field tests were conducted to measure strains at different locations of the built pavement section at different temperatures and wheel motion speed. To evaluate the moduli of asphalt mixtures as constructed in field pavements, this study back-calculated the moduli of the pavement layers, based on measured strain data in Accelerated Pavement Testing (APT). ![]() ![]() However, different laboratory test methods often lead to obviously different test results. The modulus of asphalt mixture is traditionally measured from the laboratory dynamic modulus test. ![]()
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