کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1696150 | 1519118 | 2010 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Cationic–electrokinetic improvement of an expansive soil Cationic–electrokinetic improvement of an expansive soil](/preview/png/1696150.png)
(Cationic–electrokinetic) soil improvement was shown to be an effective technique for delivering, homogeneously, stabilizing agents into soils. The results of the electrokinetic-stabilization procedure using the K+ and Ca2+ ions as stabilizing agents varied according to the type of the stabilizing ions. The plasticity index of the natural soil (PI = 40) was reduced to 32 for the Ca2+-stabilized soil, and to merely 8 for the K+-stabilized soil. The free swell value was reduced from 14% for the natural soil to 3.1% for the Ca2+-treated soil, and to only 0.4% for the K+-treated soil under identical conditions of dry density and initial moisture content. The friction angle was increased from ϕ = 24° for the natural soil to 30.9° for the Ca2+-treated soil, and to 36° for the K+-treated soil under identical conditions.
Journal: Applied Clay Science - Volume 47, Issues 3–4, February 2010, Pages 343–350