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Influence of organic pore fluid on g...

Paykov, Oksana.

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Influence of organic pore fluid on geotechnical properties of soil.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Influence of organic pore fluid on geotechnical properties of soil./
Author:	Paykov, Oksana.
Description:	240 p.
Notes:	Source: Masters Abstracts International, Volume: 50-06, page: 4088.
Contained By:	Masters Abstracts International50-06.
Subject:	Engineering, Civil. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1514030
ISBN:	9781267416995

Influence of organic pore fluid on geotechnical properties of soil.
Paykov, Oksana.

Influence of organic pore fluid on geotechnical properties of soil. - 240 p.

Source: Masters Abstracts International, Volume: 50-06, page: 4088.

Thesis (M.S.)--California State University, Fullerton, 2012.

According to the U.S. EPA, there are 488,496 confirmed cases of leaky underground storage tanks (UST) nationwide as of September 30, 2009. Soil contamination due to the oil spills and leaky USTs has a direct impact on the geotechnical properties of affected soil and, therefore, on already existing structures such as foundation embankments and clay liners. In addition, it has been a common practice to use contaminated soil as a fill material or roadway sub-base material. Therefore, it is necessary to investigate the effect of oil contamination on physical and mechanical properties of soil. Prior studies have shown the effect of pore fluid chemistry on the soil properties, such as permeability and shear strength. Dielectric constant and fluid viscosity have been found to have the major influence on soil behavior. However, the number of studies is very limited, especially when it is related to geotechnical properties of clays. Furthermore, the prior studies have been conducted with the assumption that the contaminant remains in the liquid state after its release into the soil. However, when contaminant is released into the soil, it can whether partition into the solid state and adsorb onto the soil particles or remain in the liquid state within the soil pores. The tendency of organic compound to partition into a solid or a liquid state during its release into the clayey soil may play a crucial role in geotechnical properties of contaminated soil. Liquid oil can act as a lubricant and impair the interlocking mechanism, while partitioned into the solid phase organic compound may have stabilizing effect by increasing friction between clay particles. The degree of adsorption of organic compounds onto the mineral surface can be estimated by the octanol-water partitioning coefficient. The current study examines the effect of gasoline on geotechnical properties of high-plasticity and low-plasticity clay. In addition, the effect of pore fluid properties, including dielectric constant and octanol-water partitioning coefficient, on the observed behavior of clay is studied in closer details. The study demonstrated that dielectric constant alone can't be attributed to the changes in geotechnical properties of soil. The adsorption process, however, was found to influence soil properties at lower concentrations of contaminant.

ISBN: 9781267416995Subjects--Topical Terms:

783781
Engineering, Civil.

Influence of organic pore fluid on geotechnical properties of soil.
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020 $a 9781267416995
035 $a (MiAaPQ)AAI1514030
035 $a AAI1514030
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100 1 $a Paykov, Oksana. $3 2092971
245 1 0 $a Influence of organic pore fluid on geotechnical properties of soil.
300 $a 240 p.
500 $a Source: Masters Abstracts International, Volume: 50-06, page: 4088.
500 $a Adviser: Binod Tiwari.
502 $a Thesis (M.S.)--California State University, Fullerton, 2012.
520 $a According to the U.S. EPA, there are 488,496 confirmed cases of leaky underground storage tanks (UST) nationwide as of September 30, 2009. Soil contamination due to the oil spills and leaky USTs has a direct impact on the geotechnical properties of affected soil and, therefore, on already existing structures such as foundation embankments and clay liners. In addition, it has been a common practice to use contaminated soil as a fill material or roadway sub-base material. Therefore, it is necessary to investigate the effect of oil contamination on physical and mechanical properties of soil. Prior studies have shown the effect of pore fluid chemistry on the soil properties, such as permeability and shear strength. Dielectric constant and fluid viscosity have been found to have the major influence on soil behavior. However, the number of studies is very limited, especially when it is related to geotechnical properties of clays. Furthermore, the prior studies have been conducted with the assumption that the contaminant remains in the liquid state after its release into the soil. However, when contaminant is released into the soil, it can whether partition into the solid state and adsorb onto the soil particles or remain in the liquid state within the soil pores. The tendency of organic compound to partition into a solid or a liquid state during its release into the clayey soil may play a crucial role in geotechnical properties of contaminated soil. Liquid oil can act as a lubricant and impair the interlocking mechanism, while partitioned into the solid phase organic compound may have stabilizing effect by increasing friction between clay particles. The degree of adsorption of organic compounds onto the mineral surface can be estimated by the octanol-water partitioning coefficient. The current study examines the effect of gasoline on geotechnical properties of high-plasticity and low-plasticity clay. In addition, the effect of pore fluid properties, including dielectric constant and octanol-water partitioning coefficient, on the observed behavior of clay is studied in closer details. The study demonstrated that dielectric constant alone can't be attributed to the changes in geotechnical properties of soil. The adsorption process, however, was found to influence soil properties at lower concentrations of contaminant.
590 $a School code: 6060.
650 4 $a Engineering, Civil. $3 783781
650 4 $a Geotechnology. $3 1018558
690 $a 0543
690 $a 0428
710 2 $a California State University, Fullerton. $3 1017845
773 0 $t Masters Abstracts International $g 50-06.
790 $a 6060
791 $a M.S.
792 $a 2012
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1514030