Effects of Nano-Chemical on Geotechnical Properties of Ogoja Subgrade
Effects of Nano-Chemical on Geotechnical Properties of Ogoja Subgrade
复制标题
纳米化学品对Ogoja路基岩土性能的影响
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Akeke
中科院分区：
文献类型：
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作者：
Ewa;Egbe;Akeke
该研究调查了纳米化学品（Terrasil）作为稳定剂对路基岩土性能的影响。所用路基按卡萨格兰德分类表分类为高塑性无机粉质粘土，按美国国家公路和运输官员协会（AASHTO）分类为A-7-6（0）土，按统一土壤分类系统（USCS）分类为高塑性粘土（CH）。不稳定土的最大干密度（MDD）和加州承载比分别为1190kg/m3和9.13%（浸泡48小时）。添加0％、2％、4％、6％至8％的纳米化学品（Terrasil）以稳定土壤。结果表明，纳米化学品（Terrasil）通过降低液限、塑限和线性收缩率来提高塑性。此外，最大干密度 (MDD) 增加了 9.2%，达到最佳值 1300kg/m3，然后下降至 1060kg/m3。随着纳米化学品（Terrasil）的添加，最佳水分含量（OMC）也有所增加。未浸泡的 CBR 提高了 5.6%，浸泡的 CBR 提高了 2.1%。研究得出的结论是，4% 的最佳纳米化学 (Terrasil) 值可以给出可接受的结果。
The research investigated the effect of Nano-chemical (Terrasil) as a stabilizing agent on the geotechnical properties of subgrade. The subgrade used was classified as inorganic silty clay of high plasticity under the Casagrande classification chart, A-7-6 (0) soil under the American Association of States Highways and Transportation Officials (AASHTO), and clay of high plasticity (CH) under the unified soil classification system, (USCS). The maximum dry density (MDD) and the California bearing ratio of the unstabilized soil were 1190kg/m3 and 9.13% (48 hrs soaked) respectively. Nano-chemical (Terrasil) was added in 0%, 2%, 4%, 6% up to 8% to stabilize the soil. The results revealed that, nano-chemical (terrasil) improved plasticity by reducing liquid limit, plastic limit and linear shrinkage. Also the maximum dry density (MDD) increased by 9.2% to an optimal value of 1300kg/m3 before decreasing to 1060kg/m3. The optimum moisture content (OMC) also increased with the addition of nano-chemical (Terrasil). The CBR showed improvement by 5.6% for the unsoaked and 2.1% for the soaked. The study concluded that, an optimal nano-chemical (Terrasil) value of 4% could give acceptable results.