EFFECT OF DOMESTIC SODIUM AND AMMONIUM SALT POLLUTION ON HYDROPHYSICAL AND MECHANICAL PROPERTIES OF COHESIVE SOILS

Wang Yong; Cao Liwen; Wen Wenfu; Zhao Xiaomin; Wang Kuifeng

doi:10.13204/j.gyjz201309015

Volume 43 Issue 9

Dec. 2014

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Wang Yong, Cao Liwen, Wen Wenfu, Zhao Xiaomin, Wang Kuifeng. EFFECT OF DOMESTIC SODIUM AND AMMONIUM SALT POLLUTION ON HYDROPHYSICAL AND MECHANICAL PROPERTIES OF COHESIVE SOILS[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(9): 83-87. doi: 10.13204/j.gyjz201309015

Citation:

Wang Yong, Cao Liwen, Wen Wenfu, Zhao Xiaomin, Wang Kuifeng. EFFECT OF DOMESTIC SODIUM AND AMMONIUM SALT POLLUTION ON HYDROPHYSICAL AND MECHANICAL PROPERTIES OF COHESIVE SOILS[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(9): 83-87. doi: 10.13204/j.gyjz201309015

Citation:

Wang Yong, Cao Liwen, Wen Wenfu, Zhao Xiaomin, Wang Kuifeng. EFFECT OF DOMESTIC SODIUM AND AMMONIUM SALT POLLUTION ON HYDROPHYSICAL AND MECHANICAL PROPERTIES OF COHESIVE SOILS[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(9): 83-87. doi: 10.13204/j.gyjz201309015

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EFFECT OF DOMESTIC SODIUM AND AMMONIUM SALT POLLUTION ON HYDROPHYSICAL AND MECHANICAL PROPERTIES OF COHESIVE SOILS

doi: 10.13204/j.gyjz201309015

1.
1. School of Resource and Earth Science,China University of Mining and Technology,Xuzhou 221116,China;
2.
2． School of Physics and Electronic Information Technology,Huaibei Normal University,Huaibei 235000,China;
3.
3． Shandong Institute and Laboratory of Geological Sciences,Jinan 250013,China

Received Date: 2013-02-16
Publish Date: 2013-09-20

Abstract

Abstract

The objective of this study is to investigate the effect of domestic pollution on hydrophysical andmechanical properties of cohesive soils． Initially，cohesive soils polluted by various concentrations of sodium chloride(NaCl)，sodium carbonate (Na2CO3) and ammonium chloride (NH4Cl) were precisely prepared through immersiontests． Then，the variation of plasticity，permeability，compressibility and shear strength of polluted cohesive soils withincreasing pollution degrees was determined through geotechnical tests． Finally，the evolution mechanisms of thehydrophysical and mechanical properties of polluted cohesive soils were discussed． The study showed that an increasein plasticity and compressibility as well as a decrease in permeability and shear strength of cohesive soils was causedby the pollution of NaCl and Na2CO3 ． Conversely，a decrease in plasticity and compressibility as well as an increase in permeability and shear strength of cohesive soils was contributed to the pollution of NH4Cl． Meanwhile，thevariation rate of the physical and mechanical properties of clay was much higher than that of silty clay． Domesticpollutants might provide an important effect on the hydrophysical and mechanical properties through the transformationof the double electrode layer structure on clay particles．
- domestic pollution,
- cohesive soil,
- plasticity,
- permeability,
- compressibility,
- shear strength

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References(16)

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