Fig. 12 exhibits the effects of amorphous metallic fibers and asphalt binder content on the rate of deformation and dynamic stability of AC. A lower rate of deformation and higher dynamic stability were obtained by including amorphous metallic fibers (when the asphalt binder contents were 5.5% and 6%), in comparison to these values in AC without fibers. For example, approximately 840 cycles were needed to deform 1 mm of the AC specimen, whereas approximately 1222 and 934 cycles were required to deform 1 mm of the A-AC specimens with asphalt binder contents of 5.5% and 6%, respectively. It was evident that the dynamic stability of A-AC was improved with decreasing asphalt binder content, and that the use of amorphous metallic fibers was effective in improving the dynamic stability of AC at asphalt binder contents of 5.5% and 6%.