高速公路水泥稳定碎石配比设计与施工质量控制标准研究

发布时间：2018-01-06 12:07

本文关键词：高速公路水泥稳定碎石配比设计与施工质量控制标准研究　出处：《公路工程》2017年02期 　论文类型：期刊论文

【摘要】：在我国高速公路中,应用极为广泛的材料为水泥稳定碎石,但该材料受温度及湿度影响显著,当湿度及温度变化时,容易产生收缩裂缝现象,使得沥青路面产生发生裂缝,对公路的性能产生极大影响。因此,对水泥稳定碎石进行优化配比,对其施工质量进行控制具有极强的实用价值。针对水泥稳定碎石,利用振动实验以及I值法对其配比进行优化设计。然后结合重型击实法测定配比的最佳含水量以及最大干密度。实验结果表明:基于1#、2#、3#以及石屑的配比为25∶28∶18∶19时,水泥剂含量为4%,此时材料的各项性能均满足高速公路的需求,且此时最佳含水量在4.8%,最大干密度为2.33 g/cm3。同时结合实验,对该材料的无侧限抗压强度、水泥稳定碎石的基层岩石时间进行确定,并通过对该高速公路分析,对水泥稳定碎石的施工质量控制标准进行研究,从而指导相关人员进行高速公路的水泥稳定碎石施工。
[Abstract]:Cement stabilized macadam is the most widely used material in expressway in China. However, the material is affected by temperature and humidity. When humidity and temperature change, shrinkage crack is easy to occur. The asphalt pavement has cracks, which has a great impact on the performance of the highway. Therefore, the cement stabilized macadam is optimized. It is of great practical value to control the construction quality. The optimum ratio was designed by vibration experiment and I value method, and the optimum moisture content and maximum dry density were determined by heavy compaction method. The experimental results show that: based on #2#, the optimum water content and maximum dry density are determined. At 25: 28: 18: 19, the content of cement agent is 4. At this time, all the properties of the material can meet the requirements of the highway, and the optimum water content is 4.8%. The maximum dry density is 2.33 g / cm ~ 3. At the same time, the unconfined compressive strength of the material and the time of base rock of cement stabilized macadam are determined, and the analysis of the highway is carried out. The construction quality control standard of cement stabilized macadam is studied in order to guide related personnel to construct cement stabilized crushed stone in expressway.
【作者单位】：南京航空航天大学;新疆交通职业技术学院;新疆公路规划勘察设计院;
【分类号】：U416.214
【正文快照】： 在我国高速公路中,应用极为广泛的材料为水泥稳定碎石,其优点表现在强度高,板体性好,水较稳定,且造价低。但该材料容易受湿度以及温度的影响,温度及湿度变化,可能导致收缩裂缝现象的产生,导致沥青路面有发射裂缝的现象,从而引起高速公路使用性能被破坏。因此,对水泥稳定碎石进

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