分析了沥青道路面层松散的原因，并提出了控制沥青混合料质量的建议。
The reason of emergence of raveling on the asphalt pavement surface is discussed, and some ideas to control the quality of asphalt mixtures are put forwarded.
沥青道路面层受到各种气候因素、荷载作用的影响，经常发生开裂、松散、变形等病害。
The surface of bitumen pavement is always affected by climate factor and some kinds of load that lead to some road diseases such as crazing, relaxing, distortion and so on.
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。
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.
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