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Advances in geosynthetic clay liners: polymer enhanced clays

Gemmina Di Emidio (UGent) , William Van Impe (UGent) and Daniel Verastegui (UGent)
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Abstract
Bentonite clay is widely used in Geosynthetic Clay Liners (GCLs), because of its elevated sealing capacity in presence of water. However, exposure to high concentrated inorganic solutions can change the clay fabric increasing its hydraulic conductivity. To improve the hydraulic performance of GCLs, a chemical-resistant clay (HYPER clay) was developed through treatment of a natural bentonite with an anionic polymer, Sodium Carboxymethyl Cellulose (Na-CMC). The swelling ability, water adsorption capacity and hydraulic conductivity of the HYPER clay were evaluated. Test results showed the beneficial effect of the anionic-polymer treatment on the swelling, water adsorption and hydraulic performance of the clay.
Keywords
polymer, bentonite, geosynthetic clay liner GCL, landfill, hydraulic performance

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Citation

Please use this url to cite or link to this publication:

Chicago
Di Emidio, Gemmina, William Van Impe, and Ramiro Verastegui Flores. 2011. “Advances in Geosynthetic Clay Liners: Polymer Enhanced Clays.” In Geotechnical Special Publication, ed. Jie Han and Daniel E Alzamora, 211:1931–1940. Dallas, TX, USA: American Society of Civil Engineers (ASCE).
APA
Di Emidio, G., Van Impe, W., & Verastegui Flores, R. (2011). Advances in geosynthetic clay liners: polymer enhanced clays. In J. Han & D. E. Alzamora (Eds.), Geotechnical Special Publication (Vol. 211, pp. 1931–1940). Presented at the Geo-Frontiers 2011 : Advances in geotechnical engineering, Dallas, TX, USA: American Society of Civil Engineers (ASCE).
Vancouver
1.
Di Emidio G, Van Impe W, Verastegui Flores R. Advances in geosynthetic clay liners: polymer enhanced clays. In: Han J, Alzamora DE, editors. Geotechnical Special Publication. Dallas, TX, USA: American Society of Civil Engineers (ASCE); 2011. p. 1931–40.
MLA
Di Emidio, Gemmina, William Van Impe, and Ramiro Verastegui Flores. “Advances in Geosynthetic Clay Liners: Polymer Enhanced Clays.” Geotechnical Special Publication. Ed. Jie Han & Daniel E Alzamora. Vol. 211. Dallas, TX, USA: American Society of Civil Engineers (ASCE), 2011. 1931–1940. Print.
@inproceedings{1217848,
  abstract     = {Bentonite clay is widely used in Geosynthetic Clay Liners (GCLs), because of its elevated sealing capacity in presence of water. However, exposure to high concentrated inorganic solutions can change the clay fabric increasing its hydraulic conductivity. To improve the hydraulic performance of GCLs, a chemical-resistant clay (HYPER clay) was developed through treatment of a natural bentonite with an anionic polymer, Sodium Carboxymethyl Cellulose (Na-CMC). The swelling ability, water adsorption capacity and hydraulic conductivity of the HYPER clay were evaluated. Test results showed the beneficial effect of the anionic-polymer treatment on the swelling, water adsorption and hydraulic performance of the clay.},
  author       = {Di Emidio, Gemmina and Van Impe, William and Verastegui, Daniel},
  booktitle    = {Geotechnical Special Publication},
  editor       = {Han, Jie and Alzamora, Daniel E},
  isbn         = {9780784411650},
  keyword      = {polymer,bentonite,geosynthetic clay liner GCL,landfill,hydraulic performance},
  language     = {eng},
  location     = {Dallas, TX, USA},
  pages        = {1931--1940},
  publisher    = {American Society of Civil Engineers (ASCE)},
  title        = {Advances in geosynthetic clay liners: polymer enhanced clays},
  url          = {http://dx.doi.org/10.1061/41165(397)197},
  volume       = {211},
  year         = {2011},
}

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