基层及底基层材料分档与掺配及公称最大粒径的判定

Material Blending and Nominal Maximum Size Determining of Base and Subbase Materials

该文以基层施工技术细则推荐的混合料级配为例,按照该规范推荐的方法进行材料分档与掺配,用主粒径的通过率来控制混合料的级配,用混合料的合成级配是否满足级配要求为判定依据,总结出基层及底基层混合料公称最大粒径的判别方法及最粗档料的备料特点。

Material blending was researched according to the method recommended by Technical Guidelines for Construction of Highway Roadbases.The passing rate of main particle size was used to control the gradation of mixture.Whether the composite gradation of the mixture met the grading requirements was used as the judgment basis.The method of distinguishing the nominal maximum size of base and subbase mixture was summarized.Material preparation characteristics of the roughest stock was summarized.