The mechanical behavior as a dynamic modulus and with respect to fatigue resistance was evaluated using a four-point bending test. Asphalt rubber mixtures with varying gradations and an unmodified asphalt mixture as a reference were produced. The methodology was developed in a laboratory and involved asphalt rubber production by continuous and terminal blend systems with different crumb rubbers and asphalt base types. This study performed analysis comparing the fatigue resistance of asphalt rubber mixtures of different combinations of asphalt bases, crumb rubber, and gradation, in order to estimate the performance of asphalt rubber mixtures as pavement surface layers. Asphalt rubber mixtures have been used as pavement surface layers due to their ability to prevent early degradation, and are considered a sustainable option.
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