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Study of Nano-clay and Limestone Powder Effects on the Geotechnical Properties of Clayey Soil of Eastern Tabriz
Abstract:   (2368 Views)
Clayey soils in terms of sharp reduction in strength and swelling ability as a results of water and moisture absorption, it is considered as one of the most problematic soils in civil engineering and construction works. Nowadays, Nano materials such as Nano clay are used to improve and stabilize of clay. On the other side, the increasing volume of municipal waste and residues materials especially debris of building destruction have caused many problems in mega cities such as environmental issues due to incorrect disposal of waste material. Main propose of this research is study of possibility in effecting Nano clay and limestone powder mixture for improve geotechnical properties of Kuye Nasr clayey soil in Tabriz City. In this study, Nano clay and limestone powder in both separate and combined conditions with 5 and 10 percentage are mixed with clay. Curing of stabilized specimens have been performed in 7, 14 and 28 days. For evaluating geotechnical behavior of mixture materials some tests were performed such as Atterberg limits, Compaction, uniaxial strength and direct shear (in 1, 2 and 3 kg/cm2 vertical stress). Results show that the simultaneous effects of 5% Nano clay with 10% limestone powder with 7 days curing period in ambient temperature conditions in clay reduced plasticity index by 72%, improved graining skeleton structure, reduced void ratio of inter grains and increased shear strength by 33%.

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Keywords: Clayey soil, Improving, Nano clay, Limestone powder, Bearing capacity.
Full-Text [PDF 1437 kb]   (245 Downloads)    
Type of Study: Research Paper | Subject: Geotecnic
Received: 2019/05/14 | Accepted: 2019/08/31 | Published: 2021/12/1
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Study of Nano-clay and Limestone Powder Effects on the Geotechnical Properties of Clayey Soil of Eastern Tabriz. Journal of Engineering Geology. 2021; 15 (3)
URL: http://jeg.khu.ac.ir/article-1-2882-en.html


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Volume 15, Issue 3 (12-2021) Back to browse issues page
نشریه زمین شناسی مهندسی Journal of Engineering Geology
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