Lime-ash stabilized expansive soil should take the maximum dry density and the optimum water content from compaction experiment of wet methods as quality control standards. 二灰稳定膨胀土应以湿法击实试验获得的最大干密度和最佳含水量作为质量控制标准。
Predicting method of optimum water content in geotechnical compaction test 土工击实试验中预估最优含水率的方法
The left guide wall at the Three Gorges project has a RCC volume of 380 000 m 3. While meeting the design requirements, the construction mixes for RCC at the left guide were fixed finally by optimum adjustment of mixes and field compaction tests. 三峡工程左导墙碾压混凝土38万m3,在满足设计要求的基础上对配合比进行优化调整,并经现场碾压试验,最终确定该部位碾压混凝土的施工配合比。
The vibratory roller is an important device in a road construction. The choice of optimum frequency has not only impact on compaction effect but also compaction efficiency. 振动压路机是道路机械化施工中必不可少的重要设备,其最佳压实频率的选择不仅影响压实效果,而且影响压实作业效率。
At the same time, the relationship of compaction curve, maximum dry densities, optimum water content and lime content are researched through the compaction tests. 对素土和石灰改良土进行击实试验,研究了击实曲线、最大干密度和最优含水率随灰剂量的变化关系;