Browsing by Author "Prasannan, S."

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    Comparative study on bearing capacity of bottom ash-stabilized soil mixed with natural and synthetic fibers
    (ASTM International service@astm.org, 2020) Prasannan, S.; Kolathayar, S.; Sharma, A.K.
    This article assesses the strength behavior of bottom ash (BA)-stabilized soil mixed with different fibers through a series of laboratory tests. Optimum BA and fiber percentage were obtained by small scale lab tests like compaction tests and unconfined compressive strength (UCS) tests. From compaction tests with varying proportions of BA (10, 20, 30, and 40 %), the optimum BA content was found to be 30 %. With this optimum BA content, UCS tests were conducted on soil-BA mix with different fibers (coir, areca, sisal, and polyvinyl alcohol) at various percentages (0.5, 1, 1.5, and 2 %) to find the optimum fiber content. A set of model footing tests were done to check the credibility of using fibers as a strengthening material beneath footing to upgrade the engineering properties of soil to make a reasonable subsoil for the foundation. A total of six model footing tests were performed on raw soil, on soil with optimum BA content, and on BA-stabilized soil mixed with different fibers in their optimum percentage (1.5 %). The bearing capacity of unstabilized unreinforced soil was found to increase significantly with the inclusion of fibers. © © 2020 by ASTM International
  • No Thumbnail Available
    Item
    Strength Tests and Model Experiments on Soil Reinforced with Areca and PVA Fibers
    (Springer Science and Business Media Deutschland GmbH, 2020) Kolathayar, S.; Prasannan, S.; Sharma, A.K.
    Uncertainties in geotechnical engineering are unavoidable. The soil properties may distribute within a significant range over a domain. The soil is often very weak in tension and has less stability under heavy loading. This paper presents stabilization of soil with bottom ash reinforcement of soil with natural or synthetic fibers. Several reinforcing materials are available in the market, but they are costly and not easily accessible. Bottom ash (BA) was used as a stabilizing agent, and areca fiber was used for reinforcement, in this study. Polyvinyl alcohol (PVA), which is a synthetic fiber, was also used to compare the performance of areca fiber. As compared to fly ash, the use of bottom ash is minimal all over the world. This study determines the strength of the soil stabilized with bottom ash and fibers at different proportions. The percentage of bottom ash was varied from 0 to 40%; fiber proportion was varied from 0 to 2%. © 2020, Springer Nature Singapore Pte Ltd.