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Paper Information

Journal:   AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR)   WINTER 2016 , Volume 47 , Number 3; Page(s) 37 To 44.
 
Paper: 

IMPROVEMENT IN THE HYDRAULIC PROPERTIES OF KAOLINITE WITH ADDING NANOCLAY

 
 
Author(s):  FAKHRI Z., POURHOSEINI R., EBADI T.
 
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Abstract: 

Due to special properties of clay, it has widely been used in geotechnical and geoenvironmentalprojects such as barriers in which very low seepage is required. With advances in nanotechnology, we are witnessing of nanomaterials application to modify material properties in different branchesof engineering such as geotechnical engineering. In this study, the hydraulic properties of Kaolinite extracted from Zenuz mine have been investigated experimentally by using nano clay as an additive. A series of tests, comprising Atterberg limits, standard compaction, one dimensional consolidation and cation exchange capacity test, were conducted on Kaolinite and modified Kaolinite with 1%, 2%, 4%, and 8% nanoclay. According to experimental results, adding 8% nano clay to Kaolinite increased plasticity index to 184%, and decreased the hydraulic conductivity 300 times when compared with raw Kaolinite. In addition, results of cation exchange capacity test showed that nano clay caused an in creasein cation exchange capacity from 12 to 21 meq/100 gr. This increase was related to a considerable increase in the amount of Na+.

 
Keyword(s): NANOCLAY, HYDRAULIC CONDUCTIVITY, KAOLINITE, ONE DIMENSIONAL CONSOLIDATION TEST
 
References: 
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