Application of Nano-clay particles for stabilization of dispersive clayey soils

Document Type : Research Paper

Authors

1 Institute of Technical Research and Agricultural Engineering

2 Islamic Azad University, Tehran Branch

Abstract

Recently, due to improvements and progresses in nanotechnology, application of Nano particles in different sciences especially geotechnical engineering have been widely considered. In this research, the effect of different amounts of Nano clay on dispersivity potential of two clayey soils with low and high plasticity has been studied. For this purpose, first identification tests were implemented on clayey soils and Nano clay and then pinhole tests conducted on specimens of soils with different amounts of Nano clay particles including ; 0, 0.25, 0.5, 1, 2 and 4 percent by weight for evaluation of their dispersivity potential. The specimens were cured for 1, 3 and 7 days. The results indicated that that the addition of Nano clay particles could reduce dispersive potential of clayey soil considerably. It is also found that the effect of Nano particles on two clayey soils with different plasticity is the same and the plasticity characteristics have no important role in chemical reaction between Nano clay particles and clay minerals. Furthermore, curing time was found to be as a main factor in stabilization of clayey soils with Nano particles.

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References

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Iranian Journal of Soil and Water Research
Volume 48, Issue 3
October 2017
Pages 515-524

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