膨胀土是一种特殊性质的土，不同的掺灰率对膨胀土性质的改变也不同。
Expansive soil is of special nature, different lime-doped rates have different effect on the nature of expansive soil.
从击实实验的结果得到石灰土最佳含水量及最大干密度与掺灰率的关系。
According to the dates of beating experiment, the paper analyses the relationship between on optimal water content, the maximal dry density and the quantity of added lime.
通过对多个典型取土场的土样进行不同掺灰率的试验，确定了石灰改良膨胀土合理的掺灰率。
The reasonable lime mix rate of the lime improved expansile earthworks has been confirmed by the ways of various lime and earthwork mixture rate upon different earthwork sample.
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