Evaluation of The Resistance Parameters of Soil Containing Nano-Lime

Document Type : Research Article

Authors

1 Post-graduate student of Civil Engineering, Golestan University

2 Department of Civil Engineering, Faculty of Engineering, Golestan University, Gorgan, Iran

Abstract

Nowadays, soil stabilization has a vital importance due to the population growth, the necessity of construction and unsuitable natural soil for structure construction. The use of additives such as lime and cement is one of the ways that can be applied for soil stabilization. Among new additives for soil stabilization, it can be pointed out that Nano-Material is a more efficient and most cost-effective method with respect to traditional additives. One of this Nano-Material is Nano-Lime that can be used for soil improvement. Therefore, in this study, the effect of Nano-Lime on soil resistance parameters was investigated. For this purpose, unconsolidated undrained triaxial test is performed on the soil specimens containing 0.5, 1 and 2% by weight of soil at 7, 14, and 28 days curing. According to the results, the values of maximum deviator stress are increased by adding Nano-Lime to the soil specimens, and this trend grows with an increasing percentage of Nano-Lime in the soil as well as curing days. That said, the 28-days maximum deviator stress of clean soil is increased by 21.3 to 38.3%, 27 to 59.3% and 29.6 to 70.8% with including 0.5%, 1% and 2% nano-lime for cell pressure 100, 200 and 300 kPa, respectively. Moreover, it can be seen that stiffness of specimens containing Nano-Lime rather than clean soil specimen is increased. Also, the obtained results show that the cohesion of soil increased due to effect of Nano-Lime on soil samples, which this trend increased with curing time.

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