Abstract
New advances in soil stabilization technology are increasingly being used in both constructing and improving/rehabilitating unsurfaced and paved roads worldwide. With rapid industrialization and urbanization, the non-useful waste material is creating human as well as environment concern. Thus making it necessary to address the issue of reuse of such non-useful waste materials to provide a sustainable solutions and giving rise to the development and introduction of other kinds of soil additives such as plastics, bamboo, liquid enzyme soil stabilizers, providing Geosynthetics, etc.
The present thus study deals with experimental investigation carried out to verify the efficacy of various soil stabilizers on expansive soil from Baramati, Maharashtra. The soil stabilizers ranging from traditional to recent advancements such as; lime, plastic bottle chips (1 cm × 1 cm), Rice Husk Ash (RHA) in varied percentages are used. Also the suitability of providing geotextiles layer has been verified. Based on free swell index tests, the soil is confirmed to have very high swelling potential. A preliminary experimental investigation has been carried out by conducting standard proctor tests with and without stabilizer to determine compaction properties.
It has been observed that Rice Husk Ash and lime significantly affects the compaction properties. Plastic and geotextile although increases MDD, the OMC value does not change, suggesting further investigation. Interestingly, mixture of two additives does not affect the compaction properties, more combinations might be investigated. Finally, it is recommended that addition of RHA certainly helps providing a sustainable and economical solution in soil stabilization as presented in this work. It is well understood that the soil is invariably a nonlinear material; hence the results and conclusions may be soil specific, thus it is anticipated that present work will serve as a preliminary guideline to select suitable type of stabiliser for a particular soil for reliable results.
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Dalvi, A. et al. (2019). Efficacy of Sustainable Soil Stabiliser on Compaction Properties of Expansive Soil. In: Shehata, H., Poulos, H. (eds) Latest Thoughts on Ground Improvement Techniques. GeoMEast 2018. Sustainable Civil Infrastructures. Springer, Cham. https://doi.org/10.1007/978-3-030-01917-4_6
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DOI: https://doi.org/10.1007/978-3-030-01917-4_6
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