水泥稳定砂砾混合料的配合比是保证半刚性基层沥青路面整体质量的关键环节。

The design of the mixture ratio of the cement stabilized sand and gravel is one of the critical links to ensure the whole quality of the asphalt pavement on semirigid base course.

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半刚性基层材料由于具有优良的路用性能而常作为沥青路面和水泥混凝土路面的基层，其质量好坏会直接影响道路路面的质量和寿命。

Semi rigid base course is widely used in Chinese super highway for its good character, the performance and life of pavement is influenced by semi rigid base course.

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