The design of the pavement structure can make use of moduli to predict its performance during a preset lifetime. It is essential to study static and dynamic moduli characteristics. The static modulus was derived from the compression rebound modulus of the hot-mixed asphalt. The dynamic modulus was checked against a simple performance tester. The modulus of a cold recycled emulsified asphalt mixture was tested in a series of experiments on cement contents, emulsified asphalt contents, loading frequency, and temperature. The results show that high cement and asphalt contents resulted in a lower compression rebound modulus. The dynamic modulus maximum is reached at a 2% cement content. The dynamic modulus also increases with the loading frequency. This increase is observed during the early period. When the frequency increased to 10 Hz, an increase in the dynamic modulus becomes linear, and its rate gradually decreases.
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Translated from Problemy Prochnosti, No. 4, pp. 166 – 175, July – August, 2020.
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Pi, Y.H., Li, G.C., Li, Z. et al. Static and Dynamic Moduli of a Cold Recycled Emulsified Asphalt Mixture. Strength Mater 52, 646–654 (2020). https://doi.org/10.1007/s11223-020-00215-5
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DOI: https://doi.org/10.1007/s11223-020-00215-5