Role of amount and type of clay in the lime stabilization of soils
Role of amount and type of clay in the lime stabilization of soils
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DOI：
10.1680/grim.2000.4.1.37
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
P. Sivapullaiah;A. Sridharan;K. Raju
中科院分区：
文献类型：
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作者：
P. Sivapullaiah;A. Sridharan;K. Raju
本文研究了石灰用量和养护时间对黑色棉土基本性质的影响。石灰的最佳掺量为6%。为了研究粘粒含量的作用，还用6%的石灰对含有不同量的粘粒级的黑棉土进行了固化，并对其性质进行了研究。为了研究粘土矿物类型的影响，还将市售高岭石与6%石灰混合并研究其性能。在加入石灰后，黑棉土的液限立即降低，但对于任何百分比的石灰，液限都随养护时间的增加而增加。这些变化可以用漫射双层厚度的变化和相关的织物变化来解释。研究石灰对水泥土的塑限、收缩限和自由膨胀指数的影响，有助于了解石灰对水泥土塑限、收缩限和自由膨胀指数的控制机理。双层的效果增加的蒙脱石土壤的粘粒含量增加。
The effect of quantity of lime and duration of curing on the basic properties of a black cotton soil has been studied in this paper. The optimum lime content was found to be 6%. To investigate the role of clay content, black cotton soil containing different amounts of clay size fractions was also cured with 6% lime and the properties studied. To study the effect of type of clay mineral, commercially available kaolinite has also been mixed with 6% lime and the properties studied. Immediately on addition of lime, the liquid limit of black cotton soil decreases, but it increases with increase in duration of curing for any percentage of lime. These changes have been explained by changes in the thickness of the diffuse double layer and associated fabric changes. Studies on the changes in the properties of plastic limit, shrinkage limit and free swell index on lime addition help us to understand the controlling mechanisms. The effect of the double layer increases for montmorillonitic soils with increasing clay ...