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Abstract
Chemical attack can destroy the hydraulic performance and the self-sealing capacity of Geosynthetic Clay Liners (GCLs), used as hydraulic barriers for waste disposals. For this reason, chemically-resistant clays are studied here. In this research, a bentonite clay has been modified with different concentrations of an anionic polymer, Sodium-CarboxyMethylCellulose (Na-CMC). The addition of Na-CMC to the clay analyzed improved its swelling ability in presence of deionised water, sea water, KCl and CaCl2 solutions, suggesting that the addition of this polymer enhances its swelling capacity. The addition of Na-CMC improved also the hydraulic performance of the bentonite in presence of sea water and CaCl2.
Keywords
confinment system, Bentonite clay, Geosynthetic Clay Liners, hydraulic conductivity, polymers

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Chicago
Di Emidio, Gemmina, William Van Impe, and Francesco Mazzieri. 2010. “A Polymer Enhanced Clay for Impermeable Geosynthetic Clay Liners.” In Environmental Geotechnics for Sustainable Development : Proceedings of the 6th International Congress on Environmental Geotechnics, ed. Manoj Datta, RK Srivastava, GV Ramana, and JT Shahu, 2:964–967. New Delhi, India: Tata McGraw Hill Education.
APA
Di Emidio, G., Van Impe, W., & Mazzieri, F. (2010). A polymer enhanced clay for impermeable geosynthetic clay liners. In M. Datta, R. Srivastava, G. Ramana, & J. Shahu (Eds.), Environmental geotechnics for sustainable development : proceedings of the 6th international congress on environmental geotechnics (Vol. 2, pp. 964–967). Presented at the 6th International congress on Environmental Geotechnics (6ICEG), New Delhi, India: Tata McGraw Hill Education.
Vancouver
1.
Di Emidio G, Van Impe W, Mazzieri F. A polymer enhanced clay for impermeable geosynthetic clay liners. In: Datta M, Srivastava R, Ramana G, Shahu J, editors. Environmental geotechnics for sustainable development : proceedings of the 6th international congress on environmental geotechnics. New Delhi, India: Tata McGraw Hill Education; 2010. p. 964–7.
MLA
Di Emidio, Gemmina, William Van Impe, and Francesco Mazzieri. “A Polymer Enhanced Clay for Impermeable Geosynthetic Clay Liners.” Environmental Geotechnics for Sustainable Development : Proceedings of the 6th International Congress on Environmental Geotechnics. Ed. Manoj Datta et al. Vol. 2. New Delhi, India: Tata McGraw Hill Education, 2010. 964–967. Print.
@inproceedings{1079370,
  abstract     = {Chemical attack can destroy the hydraulic performance and the self-sealing capacity of Geosynthetic Clay Liners (GCLs), used as hydraulic barriers for waste disposals. For this reason, chemically-resistant clays are studied here. In this research, a bentonite clay has been modified with different concentrations of an anionic polymer, Sodium-CarboxyMethylCellulose (Na-CMC). The addition of Na-CMC to the clay analyzed improved its swelling ability in presence of deionised water, sea water, KCl and CaCl2 solutions, suggesting that the addition of this polymer enhances its swelling capacity. The addition of Na-CMC improved also the hydraulic performance of the bentonite in presence of sea water and CaCl2.},
  author       = {Di Emidio, Gemmina and Van Impe, William and Mazzieri, Francesco},
  booktitle    = {Environmental geotechnics for sustainable development : proceedings of the 6th international congress on environmental geotechnics},
  editor       = {Datta, Manoj and Srivastava, RK and Ramana, GV  and Shahu, JT},
  isbn         = {9780070707108},
  keyword      = {confinment system,Bentonite clay,Geosynthetic Clay Liners,hydraulic conductivity,polymers},
  language     = {eng},
  location     = {New Delhi, India},
  pages        = {964--967},
  publisher    = {Tata McGraw Hill Education},
  title        = {A polymer enhanced clay for impermeable geosynthetic clay liners},
  volume       = {2},
  year         = {2010},
}