Abstract
In this paper an experimental investigation was conducted to study the effects of lime and plastic fiber on split-tensile strength and toughness properties of a soft soil. The specimens were prepared and tested at three different percentages of lime (i.e. 3, 5 and 9% by weight of the dry soil) and four different percentages of fiber content (i.e., 0.5, 1, 1.5, and 2% by weight of the dry soil). It was found that lime content, curing duration and fiber content has a significant influence on the split-tensile strength and toughness of the lime-stabilized-fiber-reinforced soil. The test results indicated that lime amendment enhanced the split-tensile strength up to 5% of lime beyond that it shows an adverse effect. Moreover, the inclusion of discrete plastic fiber with lime-stabilized soil further enhanced the spilt-tensile strength and toughness of the treated soil. This improvement is up to 1.5% of fiber beyond that effectiveness of the reinforcement reduced. Therefore, 5% lime with the inclusion of 1.5% plastic fiber is the optimum combination to improve the soft soil. With this combination of lime and fiber at 28 days curing, the split-tensile strength shows an increase of 20 times compared to parent soil. This improvement of the treated soil enhanced the pavement life and stability of the other geotechnical structures.
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Subhradeep, D., Monowar, H. (2019). The Tensile Strength Behavior of Lime-Stabilized Soft Soil with Inclusion of Plastic Fiber. In: Thyagaraj, T. (eds) Ground Improvement Techniques and Geosynthetics. Lecture Notes in Civil Engineering , vol 14. Springer, Singapore. https://doi.org/10.1007/978-981-13-0559-7_24
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DOI: https://doi.org/10.1007/978-981-13-0559-7_24
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