Also introduced here are the mixture ratio and design of pavement, base, sub-base, sub-seal and old road strengthening for typical pavement structure of different road classes in Zhengzhou.
同时，还对近阶段郑州市不同道路等级典型路面结构的面层、基层、底基层、下封层和旧路补强的配比和设计作了详细的介绍。
Introduced hereby are design scheme for interim pavement on strengthening, distress treatment and paving of overlay.
文章介绍了对过渡性路面改造的补强设计、病害处理和加铺罩面设计方案。
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