Experimental Study On Soil Stabilization Using Geotextiles

IJEP 41(6): 711-715 : Vol. 41 Issue. 6 (June 2021)

D. Boopathiraj, B. Priyadharshini*, P. Eshanthini, M. Kavisri and C. Balaji

Sathyabama Institute of Science and Technology, Department of Civil Engineering, Chennai – 600 119, India

Abstract

For pavement constructions, such as runway and highway construction, fine-grained soils are not suitable due to their undesirable properties, such as poor grading, low bearing capacity and more plasticity, ability to swell. To improve these soil properties various soil stabilization methods are needed. The stabilization is done by adding various stabilizing materials with the fine-grained soil. Geotextiles are one of the materials used in soil stabilization. This experimental study has been carried over to improve the bearing capacity of soft soil (from Sholinganallur, Chennai) by using natural and artificial geotextiles. During this study, the soil samples which has been stabilized with various geotextiles was prepared, that is soil with natural geotextile (jute fibre) and soil with artificial geotextile. In this experimental study, index properties and engineering properties of soft soil or unstabilized sample and stabilized soil sample with geotextiles were determined. Samples are subjected to various soil tests which have been used to determine the engineering properties of soil. The soil tests, such as the standard proctor compaction test, unsoaked California bearing ratio (CBR) test and unconfined compression (UCC) test had been done to determine the characteristics of the samples. In order to determine the properties of stabilizing materials, the geotextiles underwent various geosynthetic laboratory tests. The results of the study show that the bearing capacity of Shollinganallur fine grained soil can be improved subsequently and water absorption by soil has been reduced significantly by using geotextiles.

Keywords

Bearing capacity, California bearing ratio test, Fine-grained soil, Geotextile, Stabilization, Unconfined compression, Unstabilized sample

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