Utilization of Lime for Stabilizing Soft Clay Soil of High Organic Content |
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| Authors: | Mohamed A Sakr Mohamed A Shahin Yasser M Metwally |
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| Institution: | (1) Department of Structural Engineering, Tanta University, Tanta, Egypt;(2) Department of Civil Engineering, Curtin University of Technology, Perth, WA, 6845, Australia;(3) School of Geology and Geophysics, University of Oklahoma, Norman, OK, USA |
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| Abstract: | This paper presents the results of geotechnical and mineralogical investigations on lime-treated soft clay soil from Idku
City, Egypt, where high organic matters of about 14% exist. Lime was added in the order of 1%, 3%, 5% and 7% by weight and
laboratory experiments after 7, 15, 30 and 60 days were conducted including the mineralogical and microstructural examinations,
grain size analysis, plasticity limits, unconfined compressive tests, vane shear tests and oedometer tests. The results indicate
that soft clay soil of high organic content of 14% can be stabilized satisfactorily with the addition of 7% lime. The results
also demonstrate that the changes in the mineralogical contents and soil fabric of high organic lime-treated soft clay improve
soil plasticity, strength and compressibility. |
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| Keywords: | Soft clay Lime stabilisation Organic matters Cementing agents Pozzolanic reactions |
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