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沥青混合料的疲劳是材料在荷载重复作用下产生不可恢复的强度衰减积累所引起的一种现象。通过实验发现,沥青混合料中的疲劳破坏主要是由于沥青胶浆的开裂或损伤引起的,因此沥青胶浆的疲劳性能对沥青路面的抗疲劳破坏起着十分重要的作用。
Asphalt mixture fatigue is a phenomenon caused by the irreversible accumulation of strength and attenuation of the material under repeated loading. It is found through experiments that the fatigue failure of asphalt mixture is mainly caused by the cracking or damage of asphalt cement, so the fatigue performance of asphalt cement plays an important role in the anti-fatigue failure of asphalt pavement.