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Commenced in January 2007 Frequency: Monthly Edition: International Publications Count: 31108

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Effect of Nanobentonite Particles on Geotechnical Properties of Kerman Clay
Improving the geotechnical properties of soil has always been one of the issues in geotechnical engineering. Traditional materials have been used to improve and stabilize soils to date, each with its own advantages and disadvantages. Although the soil stabilization by adding materials such as cement, lime, bitumen, etc. is one of the effective methods to improve the geotechnical properties of soil, but nanoparticles are one of the newest additives which can improve the loose soils. This research is intended to study the effect of adding nanobentonite on soil engineering properties, especially the unconfined compression strength and maximum dry unit weight, using clayey soil with low liquid limit (CL) from Kerman (Iran). Nanobentonite was mixed with soil in three different percentages (i.e. 3, 5, 7% by weight of the parent soil) with different curing time (1, 7 and 28 days). The unconfined compression strength, liquid and plastic limits and plasticity index of treated specimens were measured by unconfined compression and Atterberg limits test. It was found that increase in nanobentonite content resulted in increase in the unconfined compression strength, liquid and plastic limits of the clayey soil and reduce in plasticity index.
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[1] Zhang, G. (2007). “Soil nanoparticles and their influence on engineering properties of soils,”. In Advances in Measurement and Modeling of Soil Behavior (pp. 1-13).
[2] Gallagher, P. M., & Lin, Y. (2005). Column testing to determine colloidal silica transport mechanisms. Sessions of the Geo-Frontiers Congress.
[3] Qian, L., & Hinestroza, J. P. (2004). “Application of nanotechnology for high performance textiles,”. Journal of textile and apparel, technology and management, 4(1), 1-7.
[4] Ghazavi, M., Boulhasani, M., (2009) “Design and construction of grout using lime and nanosilica for stabilization of kaolinite and study of its parameters for application in trash burying sites,”. 2nd International Symposium of Environment (In Persian).
[5] Taha, M. R., Taha, O. M. E, (2012). Influence of nano-material on the expansive and shrinkage soil behavior. Journal of Nanoparticle Research, 14(10), 1190.
[6] Bahari, M., Nikookar, M., Arabani, M., Haghi, A. K., & Khodabandeh, H. (2013). Stabilization of silt by nanoclay. In Proc. of 7th National Congress on Civil Engineering (pp. 7-8).
[7] Nikookar, M., Bahari, M., Nikookar, H., & Arabani, M. (2013). The strength characteristics of silty soil stabilized using nanoclay. In Proc. of 7th Symposium on Advances in Science & Technology (7thsastech) (pp. 7-8).
[8] Iranpour, B. and Haddad, A. (2017). The influence of nanomaterials on collapsible soil treatment. Engineering geology, 205, 40-53.
[9] Abbasi, N., Farjad, A., & Sepehri, S. (2018). The use of nanoclay particles for stabilization of dispersive clayey soils. Geotechnical and Geological Engineering, 36(1), 327-335.
[10] Tabarsa, A., Latifi, N., Meehan, C. L., & Manahiloh, K. N. (2018). Laboratory investigation and field evaluation of loess improvement using nanoclay–A sustainable material for construction. Construction and Building Materials, 158, 454-463.
[11] Majdi, M., Orumiei, A., and Nikudel, M. R., (2004), "Investigation of mechanical behavior of nanosilica and nanokaolinite produced from mechanical method", Fifth International Congeress of Nanotechnology (ICNN2014), Tehran, Iran.
[12] ASTM D12: 4318-87, “Standard test method for Liquid Limit, Plastic Limit and Plasticity Index of soils”.
[13] ASTM D16: 2166, “Standard test method for unconfined compressive strength of cohesive soil”.
[14] Majeed, Z. H., and Taha, M. R. (2013). A review of stabilization of soils by using nanomaterials. Australian Journal of Basic and Applied Sciences, 7(2), 576-581.
[15] Taha, M. R. (2009). Geotechnical properties of soil-ball milled soil mixtures. In Nanotechnology in Construction 3 (pp. 377-382). Springer, Berlin, Heidelberg.
[16] Asakereh, A., & Avazeh, A. (2017). The Effects of Nano Clay on Dispersive Soils Behavior (Case Study of Minab City). Journal of Amirkabir University, 5 (3), 7-13, (In Persian).
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