Browsing by Author "Trivedi, A."

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    Influence of Jute Reinforcement on the Stiffness Capacity of Cohesionless Pavement Geomaterials
    (Springer Science and Business Media Deutschland GmbH, 2024) Kumar, P.; Kumar, Y.; Trivedi, A.
    In this work, cohesionless pavement geomaterial reinforced with multi-layers of georeinforcement as jute fibres has been studied. The present work is carried out on unreinforced soil and jute fibre-reinforced soil to investigate the strength and stiffness capacity of pavement geomaterials using the California bearing ratio (CBR) test. The number of layers, optimum depth, and placement of the georeinforcement in geomaterial are investigated. The embedment depth of jute fibre, i.e. D/2, D/3, and D/4 in single, double, and triple layers has been optimized using CBR values. A novel concept of stiffness capacity along with penetration factor is introduced to evaluate the strength of the unreinforced and jute-reinforced geomaterial. The test results demonstrate that including jute fibre in single, double, and triple layers increases the stiffness capacity of the soil at the optimum depth of D/4. The stiffness capacity at varied input parameters varies from 0.378 to 0.682 at the maximum penetration factor which shows an 80.42% enhancement of strength in pavement geomaterial. The outcome of the present study provides a cost-effective solution to the strength improvement in cohesionless soils for embankment, subgrade, and pavement construction technologies. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd 2024.
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    Strength Analysis of Geotextile-Reinforced Subgrade
    (Springer Science and Business Media Deutschland GmbH, 2024) Kumar, P.; Gaur, K.; Trivedi, A.
    Subgrade’s poor strength is a common challenge in many road projects. Several materials are used as admixtures to reinforce the subgrade. However, geotextiles are one of the best solutions for reinforcement in the soil. In this work, an investigation of the strengths of subgrades reinforced with jute textile and polypropylene (PP) geotextile is the topic of a comparative study. On both reinforced and non-reinforced soil, tests called the direct shear test (DST) and California bearing ratio (CBR) are conducted. This geotextile’s positioning demonstrates how crucial it is to the subgrade’s overall strength. According to the test results, jute textile (natural fibre) increased the soil sample’s shear strength. Contrarily, the soil’s shear strength decreased when it was reinforced with polypropylene geotextile (synthetic fibre). Selecting D/2, D/3, and D/4 as the placement depths from the top surface for the geotextile, a single, double, and triple layer of geotextile is used to reinforce soil samples for the CBR test. The double-layer reinforcement at depths D/3 and D/4 shows optimum strength. © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd 2024.