石灰稳定土以其具有半刚性、一定的水稳性和料源丰富的特点而被广泛应用于公路工程中,尤其是高等级公路的面层结构中作为次要承重层分布荷载。石灰土中的粘土难以粉碎,不易保证粗颗粒含量要求,不仅增加了成本,也限制了施工进度。可以说石灰土的拌合成了整个石灰土基层施工的制约因素。实验表明,石灰土混合料最佳含水量远小于土的 Lime-stabilized soil is widely used in highway engineering due to its semi-rigidity, certain water stability, and abundant material source, especially in the surface structure of high-grade highways as a secondary load-bearing layer distributed load. The clay in the lime soil is difficult to crush, and it is difficult to ensure the coarse particle content requirement, which not only increases the cost but also limits the construction progress. It can be said that the lime soil mixes the constraints of the construction of the limestone base layer. Experiments show that the optimum moisture content of lime soil mixture is far less than that of soil.