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Mechanical Behavior of Silty Soil Reinforced with Carbon Fibers
The advent of new synthetic composites has encouraged engineers to use them in lieu of conventional soil reinforcements. Owing to their various technical advantages, carbon fibers have achieved considerable popularity in civil engineering applications, specifically, in concrete industry. Nevertheless, its scope as a reinforcing material in geotechnical applications remains a subject of research to this date. In this study, the use of carbon fiber (CF) as a potential primary reinforcing element in silty soil was explored. The soil fiber in varying mix proportions (0.25, 0.5, 0.75, and 0.1% by dry weight of soil) was subjected to laboratory investigations to evaluate and compare the mechanical behavior with parent soil (0% fiber). Atterberg’s limits, unconfined compression tests (UCS), and direct shear tests (DST) were conducted to investigate the effect on mechanical properties of reinforced soil. The plasticity index (PI) values showed a decrease for all CF percentages indicating an improvement in consistency of soil. The shear strength parameters (c and ϕ) as computed by DST and UCS value were significantly improved with increasing CF content up to 0.75% beyond which there was either no change or marginal decrease in strength values. From the experimental results, it is adjudged that the incorporation of CF in soil is a promising soil strengthening procedure enhancing the performance of soil.
Mechanical Behavior of Silty Soil Reinforced with Carbon Fibers
The advent of new synthetic composites has encouraged engineers to use them in lieu of conventional soil reinforcements. Owing to their various technical advantages, carbon fibers have achieved considerable popularity in civil engineering applications, specifically, in concrete industry. Nevertheless, its scope as a reinforcing material in geotechnical applications remains a subject of research to this date. In this study, the use of carbon fiber (CF) as a potential primary reinforcing element in silty soil was explored. The soil fiber in varying mix proportions (0.25, 0.5, 0.75, and 0.1% by dry weight of soil) was subjected to laboratory investigations to evaluate and compare the mechanical behavior with parent soil (0% fiber). Atterberg’s limits, unconfined compression tests (UCS), and direct shear tests (DST) were conducted to investigate the effect on mechanical properties of reinforced soil. The plasticity index (PI) values showed a decrease for all CF percentages indicating an improvement in consistency of soil. The shear strength parameters (c and ϕ) as computed by DST and UCS value were significantly improved with increasing CF content up to 0.75% beyond which there was either no change or marginal decrease in strength values. From the experimental results, it is adjudged that the incorporation of CF in soil is a promising soil strengthening procedure enhancing the performance of soil.
Mechanical Behavior of Silty Soil Reinforced with Carbon Fibers
Lecture Notes in Civil Engineering
Muthukkumaran, Kasinathan (editor) / Sathiyamoorthy, Rajesh (editor) / Moghal, Arif Ali Baig (editor) / Jeyapriya, S. P. (editor) / Gul, Nadeem (author) / Mir, Bashir Ahmed (author) / Saquib Wani, K. M. N. (author)
Indian Geotechnical Conference ; 2021 ; Trichy, India
2022-12-08
9 pages
Article/Chapter (Book)
Electronic Resource
English
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