Abstract

Application of high modulus asphalt (HiMA) concrete can improve not only rutting resistance but also the bearing capacity of pavement structure. In this paper, a new type of HiMA is developed, The mixture is coarse aggregate gap-graded, large nominal maximum particle size (NMAS) and uses hard asphalt binder to evaluate the performance of this HiMA. Their volumetric characteristics, high-temperature stability, mechanics characteristics, and fatigue resistant are evaluated. The mechanics characteristics include compressive and flexural strength, compressive resilient modulus, and dynamic complex modulus, among others. The results illustrate that HiMA with a hard asphalt binder has better rutting resistant, bearing capacity, and durability.

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