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首页> 外文期刊>American journal of applied sciences >Assessment of Strength Development in Stabilized Soil with CBR Plus and Silica Sand
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Assessment of Strength Development in Stabilized Soil with CBR Plus and Silica Sand

机译：CBR加硅砂稳定土壤强度发展评价

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This paper investigates the potential use of a nano polymer stabilizer, namely CBR PLUS for stabilization of soft clay and formulation of an optimal mix design of stabilized soil with CBR PLUS and silica sand. The highway settlements induced by the soft clay are problematic due to serious damages in the form of cracks and deformation. With respect to this, soil compaction and stabilization is regarded as a viable method to treat shallow soft clayey ground for supporting highway embankment. The suitability of stabilized soil was examined on the basis of standard Proctor compaction, California Bearing Ratio (CBR), unconfined compression, direct shear and permeability falling head tests. Furthermore, the chemical compositions of the materials were determined using X-Ray Fluorescence (XRF) test. The objectives of this paper are (i) to stabilize the compacted soil with CBR PLUS and silica sand in the laboratory; and (ii) to evaluate the strength and CBR of the untreated and stabilized soil specimens. It was found that the optimal mix design of the stabilized soil is 90% clay, 1% CBR PLUS, 9% silica sand. It is further revealed that, stabilization increases the CBR and unconfined compressive strength of the combinations by almost 6-fold and 1.8-fold respectively. In summary, a notable discovery is that the optimum mix design can be sustainably applied to stabilize the shallow clay without failure.
机译：本文研究了纳米聚合物稳定剂，即CBR加的潜在用途，用于稳定软粘土和具有CBR Plus和硅砂的稳定土壤的最佳混合设计的配制。由于裂缝和变形形式的严重损害，软粘土引起的高速公路沉降是有问题的。关于这一点，土壤压实和稳定化被认为是治疗浅软粘土地面的可行方法，用于支撑高速公路堤防。在标准标准体压实，加州轴承比（CBR），非整合压缩，直接剪切和渗透率下降头试验的基础上，检查了稳定土壤的适用性。此外，使用X射线荧光（XRF）试验测定材料的化学成分。本文的目的是（i）用CBR Plus和实验室中的硅砂稳定压实的土壤; （ii）评价未处理和稳定的土壤样本的强度和CBR。结果发现，稳定的土壤的最佳混合设计是90％的粘土，1％CBR加，9％硅砂。进一步揭示了，稳定化分别增加了组合的CBR和非整齐的压缩强度近6倍和1.8倍。总之，值得注意的发现是可以可持续地应用最佳混合设计以稳定浅粘土而不发生故障。

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