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AASHTO冷再生混合料的设计方法类似于热沥青混合料的设计方法。然而,冷再生混合料的层系数取决于施工方法,故应当基于工程的判断来加以确定。沥青协会AI方法假定路面为多层弹性结构,基于设计交通量和土基强度确定路面的厚度。冷再生基层和面层的组合厚度可通过设计图标获得。确定冷再生基层的厚度时应考虑冷再生基层上热沥青混凝土加铺层推荐厚度。
AASHTO cold recycled mixture design method is similar to hot asphalt mixture design method. However, the layer factor of the cold recycled mixture depends on the method of construction and should be determined based on engineering judgment. The Asphalt Association AI method assumes that the pavement is a multi-layered, elastic structure that determines the thickness of the pavement based on the design traffic and the strength of the subgrade. The combined thickness of the cold recycled base and finish can be obtained by design icons. The recommended thickness of hot asphalt overlay on cold-regenerated base should be considered when determining the thickness of cold-recycled base.