Stabilization of clay soil by electrokinetic method with CaCl2 solution

Document Type : Research Paper

Authors

1 MSc Student, Department of irrigation and reclamation Engineering, Faculty of Agricultural Engineering and Technology, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

2 Associate Professor, Department of irrigation and reclamation Engineering, Faculty of Agricultural Engineering and Technology, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

3 Lecturer, Department of irrigation and reclamation Engineering, Faculty of Agricultural Engineering and Technology, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

4 Assistant Professor, Department of Animal Science, Faculty of Agricultural Sciences and Engineering, Faculty of Agricultural Engineering and Technology, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

5 Laboratory Technician, Department of irrigation and reclamation Engineering, Faculty of Agricultural Engineering and Technology, University College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran

Abstract

In this research, laboratory studies were carried out to improve a clay soil by adding calcium ion through Electrokinetic method Experiments were performed in a special device using distilled water firstly, as the reference test and calcium chloride solution with the concentration of 0.25, 0.5, 1 and 1.5 molar secondly, as an anode reservoir fluid under the influence of 52-volt voltage during 7 days. During the experiment, the pH value was measured for electrolyte at the anode and cathode reservoir. Also, volume of water discharged from the cathode reservoir was measured at a given time interval. After the tests, shear strength of the soil was measured at different distances from the anode. The results showed that the calcium injection into the soil increases shear strength of the soil, and its amount depends on the concentration of calcium chloride solution, so shear strength increases by increasing concentration of the calcium chloride solution.

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Main Subjects

References

Abdullah, W. S. and Al-Abadi, A. M. (2010). Cationic–electrokinetic improvement of an expansive soil. Applied Clay Science, 47(3), 343-350.
Acar, Y. B. and Alshawabkeh, A. N. (1993). Principles of electrokinetic remediation. Environmental science & technology, 27(13), 2638-2647.
Acar, Y. B., Alshawabkeh, A. N., & Gale, R. J. (1993). Fundamentals of extracting species from soils by electrokinetics. Waste Management, 13(2), 141-151.
Ahmad, K. B., Taha, M. R., and Kassim, K. A. (2011). Electrokinetic treatment on a tropical residual soil. Proceedings of the Institution of Civil Engineers-Ground Improvement, 164(1), 3-13.
Alshawabkeh, A. N. and Sheahan, T. C. (2003). Soft soil stabilisation by ionic injection under electric fields. Proceedings of the Institution of Civil Engineers-Ground Improvement, 7(4), 177-185.
Asavadorndeja, P. and Glawe, U. (2005). Electrokinetic strengthening of soft clay using the anode depolarization method. Bulletin of Engineering Geology and the Environment, 64(3), 237.
Bahar, R., Benazzoug, M., and Kenai S. (2004).  Performance of compacted cement-stabilised soil. Cement and concrete composites, 26(7), 811-820
Barker, J. E., Rogers, C. D. F., Boardman, D. I., and Peterson, J. (2004). Electrokinetic stabilisation: an overview and case study. Proceedings of the Institution of Civil Engineers-Ground Improvement, 8(2), 47-58.
Basha, E., Hashim, R., Mahmud, H., Muntohar AS. (2005). Stabilization of residual soil with rice husk ash and cement. Construction and Building Materials, 19(6), 448-453
Charles, J.A. and Watts, K.s, (2002). Treated grounds engineering and performance. London. Construction industry research and information association, Report-C572.
Chew, S. H., Karunaratne, G. P., Kuma, V. M., Lim, L. H., Toh, M. L., and Hee, A. M. (2004). A field trial for soft clay consolidation using electric vertical drains. Geotextiles and Geomembranes, 22(1), 17-35.
Chien, S. C., Ou, C. Y., and Lo, W. W. (2014). Electro-osmotic chemical treatment of clay with interbedded sand. Proceedings of the Institution of Civil Engineers-Geotechnical Engineering, 167(1), 62-71.
Chien, S. C., Ou, C. Y., and Wang, M. K. (2009). Injection of saline solutions to improve the electro-osmotic pressure and consolidation of foundation soil. Applied clay science, 44(3), 218-224.
Estabragh, A. R., Naseh, M., and Javadi, A. A. (2014). Improvement of clay soil by electro-osmosis technique. Applied Clay Science, 95, 32-36.
Estabragh, A. R., Ranjbari S., Javadi A. A. (2017). Properties of Clay Soil and Soil Cement Reinforced with Polypropylene Fibers. ACI Materials Journal, 114(2)
Eykholt, G. R. (1997). Development of pore pressures by nonuniform electroosmosis in clays. Journal of Hazardous Materials, 55(1-3), 171-186.
Eykholt, G. R. and Daniel, D. E. (1994). Impact of system chemistry on electroosmosis in contaminated soil. Journal of geotechnical engineering, 120(5), 797-815.
Ho, S. V., Athmer, C., Sheridan, P. W., Hughes, B. M., Orth, R., McKenzie, D., Brodsky, P. H., Shapiro, A., Thornton, R., Salvo, J. and Schultz, D. (1999 a). The Lasagna technology for in situ soil remediation. 1. Small field test. Environmental Science & Technology, 33(7), 1086-1091
Ho, S .V., Athmer, C., Sheridan, P. W., Hughes, B. M., Orth, R., McKenzie, D., Brodsky, P. H., Shapiro, A. M., Sivavec, T. M., Salvo, J. and Schultz, D. (1999 b). The Lasagna technology for in situ soil remediation. 2. Large field test. Environmental Science & Technology, 33(7), 1092-1099.
Hunter, R.J. (1981). Zeta potential in colloid science: principles and applications. Academic, London.
Liaki, C., Rogers, C. D., and Boardman, D. I. (2008). Physicochemical effects on uncontaminated kaolinite due to electrokinetic treatment using inert electrodes. Journal of Environmental Science and Health Part A, 43(8), 810-822.
Lo, K. Y., Ho, K. S. and Inculet, I. I. (1991). Field test of electroosmotic strengthening of soft sensitive clay. Canadian Geotechnical Journal, 28(1), 74-83
Mitchell, J. K. and Soga, K. (2005). Fundamentals of soil behavior.
Mitchell, J.K. 1993. Fundamentals of soil behavior. 2nd ed. John Wiley and Sons, Inc., New York.
Mohamad, A.M.O. and Anita, H.E. (1998). Geoenvironmental engineering, Elsevier, Amsterdam, The Netherlands.
Mohamedelhassan, E. and Shang, J. Q. (2003). Electrokinetics-generated pore fluid and ionic transport in an offshore calcareous soil. Canadian Geotechnical Journal, 40(6), 1185-1199.
Prabakar, J. and Sridhar, R. (2002). Effect of random inclusion of sisal fibre on strength behaviour of soil.  Construction and Building Materials, 16(2), 123-131
Rittirong, A., Douglas, R. S., Shang, J. Q., and Lee, E. C. (2008). Electrokinetic improvement of soft clay using electrical vertical drains. Geosynthetics International, 15(5), 369-381.
Shang, J. Q. (1997). Zeta potential and electroosmotic permeability of clay soils. Canadian Geotechnical Journal, 34(4), 627-631.
Tang, C., Shi, B., Gao, W., Chen, F., Cai, Y. (2007). Strength and mechanical behavior of short polypropylene fiber reinforced and cement stabilized clayey soil. Geotextiles and Geomembranes, 25(3), 194-202
Vane, L. M. and Zang, G. M. (1995). Electrokinetic soil remediation: Impact of aqueous phase properties on soil surface charge and electroosmotic efficiency (No. CONF-9504110). Environmental Protection Agency, Cincinnati, OH (United States).
West, J.L. and Stewart, D.I. (1995). Effects of zeta potential on soil electrokinetics. In Containment, Remediation, and Performance in Environmental Geotechnics: Proceedings of Geoenvironment 2000. Vol. 2. Edited by Y.B. Acar and D.E. Daniel. American Society of Civil Engineers, Geotechnical Special Publication, 46, pp. 1535–1549.
Iranian Journal of Soil and Water Research
Volume 49, Issue 6
January and February 2019
Pages 1277-1287

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