Effects of Waste Glass Powder on the Geotechnical Properties of Loose Subsoils
Effects of Waste Glass Powder on the Geotechnical Properties of Loose Subsoils
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DOI：
10.28991/cej-03091137
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发表时间：
2018-09-01
影响因子：
4.1
通讯作者：
Mateeullah
中科院分区：
文献类型：
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作者：
Khan, Muhammad Siyab;Tufail, Muhammad;Mateeullah
当涉及到具有低抗剪强度和承载力的松散土时，地基土受到各种问题的影响最大。当土壤中的剪应力超过极限值时，伴随着沉降和剪切的土壤破坏出现。通过不同的室内试验，研究了废玻璃粉在增强土的土工性能方面的效果。从帕比、白沙瓦、KPK和巴基斯坦采集的土样，属于低强度土，也被称为具有低承载力的软土。而且，这种特殊的土壤，也需要强化。考虑到原状土的物理、化学和工程性质，用添加的玻璃粉物质处理土壤以稳定当地土壤。玻璃粉按4%、8%、12%等不同比例进行掺加，并进行了级配、比重、标准普罗克特击实、阿太伯格极限、直剪、CBR等性能试验。根据玻璃粉尘的稳定性分析，得出了结果。结果表明，玻璃粉可以有效地用作土壤稳定剂，主要是观察到强度特性。结果表明，从颗粒分析来看，土的级配较窄。玻璃粉的加入降低了水泥的塑性指数（P.I）、液限（L.L）和塑限（P.L）。P.I降低的原因可能是玻璃粉是无粘性的。玻璃粉作为稳定剂的理想比例为8%。这些改进包括在4%、8%和12%的粉末玻璃含量下获得的最高CBR的实现。原因是玻璃是火山灰材料，当与土壤混合时会产生额外的强度。内摩擦角的值的增加率在4%和8%上的实现和在12%粉末状玻璃物质下获得的值的减少率。内聚率下降至8%，并在12%时开始增加。最大干密度随着玻璃密度的增加而增加，最佳含水量（OMC）由于玻璃的吸水能力较低而降低。研究表明，案例研究（帕比，白沙瓦）的最佳稳定剂是玻璃粉，最佳剂量为8%。
Foundation soils are most affected by different problems when it comes to the loose soil having low shear strength and bearing capacity. Failure of the soil with settlement and shear arises when the shear stresses in the soil exceed the limit. This study is keen to observe the effects of utilization of waste broken glass in the enhancement of Geotechnical properties of soil by performing different laboratory tests. Collection of the soil sample from was concluded from Pabbi, Peshawar, KPK, and Pakistan, which is a low strength soil, are also being called soft soil having low bearing capacity. Furthermore, this particular soil was needed to be enhanced. The physical, chemical and engineering properties of virgin soil were contemplated and the soil was treated with added substances of Glass Powder to stabilize the local soil. Addition of Glass Powder was finished in different proportions that are 4%, 8% and 12% etc. Performance of different tests as Gradation, Specific Gravity, Standard Proctor compaction, Atterberg Limits, Direct Shear, CBR and so forth were done. The results were concluded, based on the Glass Dust stabilization analysis. It was obtained that pulverized glass can be effectively used as a soil stabilizer as mainly the strength characteristics were observed to be valeted. The Results showed that the gradation of soil is narrow from the particle size analysis. Plasticity index (P.I), Liquid limit (L.L) and plastic limit (P.L) were decreased with the addition of Glass powder. The reason behind decreasing P.I is maybe the fact that the Glass powder is cohesionless. Ideal percentage of Glass Powder as a stabilizer is 8%. Such improvements included an achievement of the highest CBR obtained at the 4%, 8% and 12% of powdered glass content. The reason is that the glass is pozzolanic material when blended with soil gives additional strength. The achievement of the increasing rate of the values of angle of internal friction on 4% and 8% and decreasing rate of values obtained at 12% powdered glass substances. Cohesion rate decreases up to 8% and starts increasing at 12%. Maximum dry density increasing as the density of glass is higher than such soil and Optimum moisture content (OMC) is decreasing because of low absorption capacity of glass. The study showed that the best stabilizer for the case study (Pabbi, Peshawar) is the Glass Powder and the optimum dose is 8 %.