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Stabilization of tropical kaolin soil with phosphoric acid and lime
Natural Hazards (2012)
  • Amin Eisazadeh, University Technology Malaysia
  • Khairul Anuar Kassim, University Technology Malaysia
  • Hadi Nur, University Technology Malaysia
Abstract

Studies on the chemically stabilized soils have shown that the effectiveness of treatment is largely dependent on soil’s natural environment. In tropical kaolin soils, phosphoric acid may be used as an alternative to traditional alkaline stabilizers for improving soil properties. This research was carried out in an effort to identify the timedependent soil-stabilizer reactions. Data for the study of characterization of treated samples were obtained from X-ray diffractometry, energy dispersive X-ray spectrometry, field emission scanning electron microscopy, Fourier transform infrared spectroscopy, and leaching analysis. Based on the collected data, the kaolinite mineral with pH-dependent structural properties showed slightly different behavior both in basic and in acidic mediums. Also, it was found that the chemical stabilizers preferentially attacked the alumina surface of the clay particles. Therefore, it was rational to suggest that with respect to lime and phosphoric acid treatment, aluminate hydrate compounds are more likely to be formed.

Keywords
  • Tropical kaolin,
  • Stabilization,
  • Phosphoric acid,
  • Lime,
  • Characterization,
  • Leaching
Disciplines
Publication Date
2012
Citation Information
Amin Eisazadeh, Khairul Anuar Kassim and Hadi Nur. "Stabilization of tropical kaolin soil with phosphoric acid and lime" Natural Hazards Vol. 61 (2012)
Available at: http://works.bepress.com/hadi_nur/62/