Comparative Analysis of Pond Ash as a Partial Replacement of Sand as Subbase Material for Concrete Paver Block Hardstand sustaining storage of Bulk Cargo

Year : 2025 | Volume : 12 | 03 | Page :
    By

    Aditya Shankar Ghosh,

  • Nepal Chandra Porey,

  • Priti Rajak,

  • Rabindranath Mal,

  • Ranjan Kumar,

  • Raju Ranjan Kumar,

  • Rinki Roy,

  • Tapash Kumar Roy,

Abstract

This work presents an industrial waste-derived subbase material that can take the place of conventional granular material for subbase in hardstand foundation construction. This industrial waste hugely deposited in the ash lagoons namely Pond Ash (PA) which is globally generated at an amount of 780 Metric Tons from thermal power plants annually ,as foundation material for hardstand construction, will not only help the cause of residual waste disposal problems but will also solve other associated shortcomings like, lower utility and degrading environmental impact, and will also provide an economic alternative. This study analyses the geotechnical, morphological, mineralogical and polymeric properties of PA samples, designs a numerical model for safe foundation depth and a physical model for measuring the deflection using Light Falling Weight Deflectometer (LFWD) using PA as subbase material, replacing Sand as CGM along with the associated cost benefit. The research work reveals that PA in itself be a suitable material for foundation subbase. The LFWD shows peak surface deflection modulus differs only by 1% from CGM.

Keywords: Pond ash, chemical composition, geotechnical and polymeric characteristics, XRD, FTIR, microstructure, light falling weight deflectometer

How to cite this article:
Aditya Shankar Ghosh, Nepal Chandra Porey, Priti Rajak, Rabindranath Mal, Ranjan Kumar, Raju Ranjan Kumar, Rinki Roy, Tapash Kumar Roy. Comparative Analysis of Pond Ash as a Partial Replacement of Sand as Subbase Material for Concrete Paver Block Hardstand sustaining storage of Bulk Cargo. Journal of Geotechnical Engineering. 2025; 12(03):-.
How to cite this URL:
Aditya Shankar Ghosh, Nepal Chandra Porey, Priti Rajak, Rabindranath Mal, Ranjan Kumar, Raju Ranjan Kumar, Rinki Roy, Tapash Kumar Roy. Comparative Analysis of Pond Ash as a Partial Replacement of Sand as Subbase Material for Concrete Paver Block Hardstand sustaining storage of Bulk Cargo. Journal of Geotechnical Engineering. 2025; 12(03):-. Available from: https://journals.stmjournals.com/joge/article=2025/view=234977


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Ahead of Print Subscription Original Research
Volume 12
03
Received 10/07/2025
Accepted 30/07/2025
Published 03/08/2025
Publication Time 24 Days
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