半刚性基层材料的路用性能取决于其组成结构,而组成结构分为悬浮密实结构、骨架密实结构和骨架空隙结构3类。要使半刚性基层的收缩变形量减小,就必须尽可能地使二灰或者水泥浆存在于集料框架内,而集料是否能较好地形成框架,框架是否稳定,是否具有足够的抵抗二灰或水泥浆收缩变形的能力,则成为减少半刚性基层材料收缩变形的先决条件。 The road performance of semi-rigid base material depends on the composition of the structure, and the composition of the structure is divided into suspended solid structure, solid skeleton structure and skeleton structure of the three categories. In order to reduce the amount of shrinkage deformation of the semi-rigid base layer, it is necessary to make the fly ash or the cement slurry exist in the aggregate frame as much as possible, and whether the aggregate can form the frame well, whether the frame is stable and sufficient resistance Lime or cement shrinkage deformation capacity, then become a prerequisite for reducing the shrinkage deformation of semi-rigid base material.