Abstract
Fine clayey soils with a poor rating have the tendency to swell and shrink due to the absorption of water and drying out effect. Mixing those marginal soils with lime will immediately dry out and modify the soil by flocculation, resulting in a reduction in the plasticity index and switching fine clayey soils, which are difficult to handle, into friable and granular particles which are much easier to work and compact. Pozzolanic reactions between clay, soil water and lime will increase the bearing capacity of compacted layers gradually, and result in flexible structural layers situated in subgrade till top of capping layer for large-sized earthworks of civil engineering projects. This technology of soil recycling in situ is recognized as an economical and sustainable methodology.
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Acknowledgements
We would like to thank Prof. Gabriele Tebaldi, P.E, Ph.D., University of Parma (Italy), Department of Civil and Environmental Engineering and Architecture Road & Transport Section, for support to realize this paper.
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Denayer, C.J.E., Kumar, A., Soporan, L.C. (2019). Soil Treatment with Lime for Earthworks: An Economical and Sustainable Solution. In: Sundaram, R., Shahu, J., Havanagi, V. (eds) Geotechnics for Transportation Infrastructure. Lecture Notes in Civil Engineering , vol 28. Springer, Singapore. https://doi.org/10.1007/978-981-13-6701-4_13
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DOI: https://doi.org/10.1007/978-981-13-6701-4_13
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