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Erschienen in:
2023 | OriginalPaper | Buchkapitel
Effect of Fiber Reinforcement on the Direct Tensile Strength of Fiber-Reinforced Black Cotton Soil
verfasst von : Uma Chaduvula, B. V. S. Viswanadham, Jayantha Kodikara
Erschienen in: Proceedings of Indian Geotechnical and Geoenvironmental Engineering Conference (IGGEC) 2021, Vol. 1
Verlag: Springer Nature Singapore
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Abstract
The performance of geotechnical structures is a function of the tensile strength of the soil. Soils compacted at their desired density values in various geotechnical structures face the problem of cracking due to cracking failure. Lately, the technique of fiber reinforcement in mitigation of desiccation cracking is adopted by researchers. In this study, the influence of percentage dosage of the fiber on the direct tensile strength value of black cotton soil has been investigated. Polypropylene fibers of special trilobal cross section were used. The percentage fiber content was varied as 0, 0.25, 0.5, and 0.75% by the dry weight of the soil. The tensile strength was measured in a modified direct tensile strength test apparatus. The results indicate a rise in tensile strength and change in the failure pattern due to fiber inclusion. However, an optimum fiber content of 0.5% is observed, after which the tensile strength decreases. Due to fiber inclusion, the tensile strength increases by 67%.