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Nonisothermal Shear Strength of Compacted Silt at Residual Saturation
This paper focuses on the results from a new triaxial cell developed to measure the shear strength of unsaturated soils under elevated temperatures and high suction magnitudes. Suction control is implemented by circulating vapor through a soil specimen with an initially low degree of saturation while the temperature of the soil specimen is controlled using heating elements within the cell fluid. A mechanical load frame was also modified to be capable of performing both load and constant displacement control triaxial tests. Volume changes were assessed using axial displacements and by tracking changes in the cell fluid volume. In addition to presenting the details of the new cell, the results from a set of drained triaxial tests performed on compacted silt specimens under different combinations of total suction and net normal stress at both ambient and elevated temperatures are presented.
Nonisothermal Shear Strength of Compacted Silt at Residual Saturation
This paper focuses on the results from a new triaxial cell developed to measure the shear strength of unsaturated soils under elevated temperatures and high suction magnitudes. Suction control is implemented by circulating vapor through a soil specimen with an initially low degree of saturation while the temperature of the soil specimen is controlled using heating elements within the cell fluid. A mechanical load frame was also modified to be capable of performing both load and constant displacement control triaxial tests. Volume changes were assessed using axial displacements and by tracking changes in the cell fluid volume. In addition to presenting the details of the new cell, the results from a set of drained triaxial tests performed on compacted silt specimens under different combinations of total suction and net normal stress at both ambient and elevated temperatures are presented.
Nonisothermal Shear Strength of Compacted Silt at Residual Saturation
Alsherif, Nahed A. (author) / McCartney, John S. (author)
Geo-Congress 2014 ; 2014 ; Atlanta, Georgia
Geo-Congress 2014 Technical Papers ; 2745-2754
2014-02-24
Conference paper
Electronic Resource
English
Nonisothermal Shear Strength of Compacted Silt at Residual Saturation
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