Effect of Salt Solution and Plasticity Index on undrain Shear Strength of Clays
Compacted clay liners (CCLs) are the main materials
used in waste disposal landfills due to their low permeability. In this
study, the effect on the shear resistant of clays with inorganic salt
solutions as permeate fluid was experimentally investigated. For this
purpose, NaCl inorganic salt solution at concentrations of 2, 5, 10%
and deionized water were used. Laboratory direct shear and Vane
shear tests were conducted on three compacted clays with low,
medium and high plasticity. Results indicated that the solutions type
and its concentration affect the shear properties of the mixture. In the
light of this study, the influence magnitude of these inorganic salts in
varies concentrations in different clays were determined and more
suitable compacted clay with the compare of plasticity were found.
[1] L. Bjerrum, I. Rosenquist, "Some experiments with artificially
sedimented clays" Geotechnique 6, pp. 124-136, 1974.
[2] R. E. Olson, "Effective shear strength of clays with various pore water
electrolyte" v.100, Journal of the Soil Mechanics and Foundation, May
1974.
[3] M. A. Rashid, J. D. Brown, "Geochemistry of marine humic
compounds," Springer, 1985.
[4] R. N. Yong, "Selective leaching effects on some mechanical properties
of a sensitive clay," 1sth International Symposium on Environmental
Geotechnology, V. 1, pp. 99-110, 1986.
[5] S. Singh, "Effects of chemicals on compacted clay liner" EJGE, vol. 12,
Bund. D, 2007.
[6] American Society for Testing and Materials (ASTM),"Standard test
method for liquid limit, plastic limit and plastic index of soils",
Designation D 4318, 1995.
[7] American Society for Testing and Materials (ASTM),"Standard test
method for Laboratory Compaction Characteristics of Soil Using
Modified Effort", Designation D 1557, 1995.
[8] P. Agamuthu, "Solid waste principles and management with Malaysian
case studies" Kuala Lumpur: University of Malaya Press, 2001.S. Singh,
"Effects of chemicals on compacted clay liner" EJGE, vol. 12, Bund. D,
2007.
[9] American Society for Testing and Materials (ASTM)," Standard test
method for laboratory miniature vane shear test for saturated fine
grained clayey soil", Designation D 4648, 1995.
[10] American Society for Testing and Materials (ASTM),"Standard test
method for direct shear test", Designation D 3080, 1995.
[11] Lambe T. W. (1958), "The Structure of Compacted Clay", J. of Soil
Mechanics and Foundation Division, ASCE, Vol. 84, 1-35.
[1] L. Bjerrum, I. Rosenquist, "Some experiments with artificially
sedimented clays" Geotechnique 6, pp. 124-136, 1974.
[2] R. E. Olson, "Effective shear strength of clays with various pore water
electrolyte" v.100, Journal of the Soil Mechanics and Foundation, May
1974.
[3] M. A. Rashid, J. D. Brown, "Geochemistry of marine humic
compounds," Springer, 1985.
[4] R. N. Yong, "Selective leaching effects on some mechanical properties
of a sensitive clay," 1sth International Symposium on Environmental
Geotechnology, V. 1, pp. 99-110, 1986.
[5] S. Singh, "Effects of chemicals on compacted clay liner" EJGE, vol. 12,
Bund. D, 2007.
[6] American Society for Testing and Materials (ASTM),"Standard test
method for liquid limit, plastic limit and plastic index of soils",
Designation D 4318, 1995.
[7] American Society for Testing and Materials (ASTM),"Standard test
method for Laboratory Compaction Characteristics of Soil Using
Modified Effort", Designation D 1557, 1995.
[8] P. Agamuthu, "Solid waste principles and management with Malaysian
case studies" Kuala Lumpur: University of Malaya Press, 2001.S. Singh,
"Effects of chemicals on compacted clay liner" EJGE, vol. 12, Bund. D,
2007.
[9] American Society for Testing and Materials (ASTM)," Standard test
method for laboratory miniature vane shear test for saturated fine
grained clayey soil", Designation D 4648, 1995.
[10] American Society for Testing and Materials (ASTM),"Standard test
method for direct shear test", Designation D 3080, 1995.
[11] Lambe T. W. (1958), "The Structure of Compacted Clay", J. of Soil
Mechanics and Foundation Division, ASCE, Vol. 84, 1-35.
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:52175", author = "S .A. Naeini and M. A. Jahanfar", title = "Effect of Salt Solution and Plasticity Index on undrain Shear Strength of Clays", abstract = "Compacted clay liners (CCLs) are the main materials
used in waste disposal landfills due to their low permeability. In this
study, the effect on the shear resistant of clays with inorganic salt
solutions as permeate fluid was experimentally investigated. For this
purpose, NaCl inorganic salt solution at concentrations of 2, 5, 10%
and deionized water were used. Laboratory direct shear and Vane
shear tests were conducted on three compacted clays with low,
medium and high plasticity. Results indicated that the solutions type
and its concentration affect the shear properties of the mixture. In the
light of this study, the influence magnitude of these inorganic salts in
varies concentrations in different clays were determined and more
suitable compacted clay with the compare of plasticity were found.", keywords = "landfill liner, shear resistant, plasticity, salt solution", volume = "5", number = "1", pages = "29-5", }