Geotechnical and Geological Engineering

, Volume 30, Issue 6, pp 1435–1440 | Cite as

Cation Exchange Capacity of Phosphoric Acid and Lime Stabilized Montmorillonitic and Kaolinitic Soils

Technical Note

Abstract

Studies on the chemically stabilized soils have shown that the effectiveness of treatment is largely dependent on soil’s natural environment. In this research, the time-dependent changes induced in permanent cation exchange capacity of lime and phosphoric acid treated soils, comprised mainly of montmorillonite and kaolinite minerals, were investigated. Also, in order to study the relationship between the exchange capacity and acidity/alkalinity of pore water, pH measurements were performed on cured samples. Based on the collected data, it was found that the pH of stabilized soils showed a tendency for reaching soil’s natural pH with increasing curing time. In addition, the increase in number of broken bonds around the edges of soil particles and also the formation of cementitious compounds that acquired negative charges contributed to achieving higher CECp values at longer curing periods. Nevertheless, the kaolinite mineral with pH-dependent structural properties, showed a rather limited behavior in the acidic medium. From engineering point of view, the lime treated samples revealed the highest degree of improvement with an approximately ten-fold strength increase in comparison to the natural soil over an 8 months curing period.

Keywords

Bentonite Kaolinite Stabilization Phosphoric acid Lime Cation exchange capacity pH 

References

  1. Bell FG (1996) Lime stabilization of clay minerals and soils. Eng Geol 42(4):223–237CrossRefGoogle Scholar
  2. BSI (1990) British Standard methods of test for soils for civil engineering purposes: Part 4, Compaction-related tests. BS1377, British Standards Institution, LondonGoogle Scholar
  3. BSI (1990) Stabilized materials for civil engineering purposes: Part 2, Methods of test for cement-stabilized and lime-stabilized materials. BS1924, British Standards Institution, LondonGoogle Scholar
  4. Eisazadeh A (2010) Physicochemical behaviour of lime and phosphoric acid stabilized clayey soils. Universiti Teknologi Malaysia (UTM), Ph.D. Thesis, MalaysiaGoogle Scholar
  5. Grim RE (1968) Clay Mineralogy. McGraw-Hill, New YorkGoogle Scholar
  6. Grim RE, Guven N (1978) Bentonites—geology, mineralogy, properties and uses. Elsevier Scientific, Amsterdam, pp 229–232Google Scholar
  7. Ingles OG, Metcalf JB (1972) Soil stabilization—principles and practice. Butterworth, MelbourneGoogle Scholar
  8. Ma C, Eggleton RA (1999) Cation exchange capacity of kaolinite. Clays Clay Minerals 47(2):174–180CrossRefGoogle Scholar
  9. Mathew PK, Narasimha RS (1997) Effect of lime on cation exchange capacity of marine clay. J Geotech Geoenviron Eng 123(2):183–185CrossRefGoogle Scholar
  10. Medina J, Guida HN (1995) Stabilization of Lateritic soils with phosphoric acid. J Geotech Geol Eng 13:199–216CrossRefGoogle Scholar
  11. Mitchell JK, Soga K (2005) Fundamentals of soil behavior, 3rd edn. John Wiley and Sons, New YorkGoogle Scholar
  12. Narasimha RS, Rajasekaran G (1996) Reaction products formed in lime-stabilized marine clays. J Geotech Eng 122:329–336CrossRefGoogle Scholar
  13. Rogers CDF, Glendinning S, Dixon N (1996) Lime Stabilization. Proceedings of the seminar held at Loughborough University, Thomas Telford PublisherGoogle Scholar
  14. Ross S (1989) Soil processes. Routledge, LondonGoogle Scholar
  15. Tan KH (2005) Soil sampling, preparation and analysis, 2nd edn. Taylor and Francis, FloridaGoogle Scholar
  16. Tan KH, Dowling PS (1984) Effect of organic matter on CEC due to permanent and variable charges in selected temperate region soils. Geoderma 32:89–101CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  • Amin Eisazadeh
    • 1
  • Khairul Anuar Kassim
    • 1
  • Hadi Nur
    • 2
  1. 1.Geotechnic and Transportation Department, Faculty of Civil EngineeringUniversiti Teknologi MalaysiaJohor BahruMalaysia
  2. 2.Ibnu Sina Institute for Fundamental Science StudiesUniversiti Teknologi MalaysiaJohor BahruMalaysia

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