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采用贫混凝土基层 ,可提高路面的使用性能与使用寿命 ,以河北宣大高速公路为例 ,分别采用不同的设计方法确定贫混凝土基层的厚度 ,推荐以贫混凝土作为基层的水泥混凝土路面设计方法
The use of lean concrete base can improve the performance and service life of the pavement. Taking Xuan Da Expressway in Hebei Province as an example, different design methods are used to determine the thickness of lean concrete base. Cement-concrete pavement design with lean concrete as the base is recommended