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Enhancement of Various Material Properties Filling and Embankment Material: Using Red Mud and Pond Ash mix

Karuna Dwivedi, Sandeep Gupta

Abstract


The disposal of residual waste products is one of the major challenges that the processing and manufacturing industries face. The waste products of the aluminum industry include red mud and pond ash. The project's focus is on the suitability of red mud and pond ash for dyke and infill material building. Using red mud as a tailing dam design and pond ash as a land infill has been attempted several times in the past. The use of red mud and pond ash mix for embankment construction and filling material has been highlighted in this study. Initially, the geotechnical features of red mud and pond ash are investigated in this study. Standard Proctor Test to determine maximum dry density (MDD) and optimum moisture content (OMC), and specific gravity test are among the several trial works. Using the MDD and OMC data, the sample was subjected to Direct Shear Tests and Triaxial Tests in order to determine the shear parameters c and. The specimens were also tested for their Unconfined Compressive Strength Test and permeability characteristics, with the coefficient of permeability calculated using both a stable head and a falling head permeameter. After determining the separate geotechnical features of red mud and pond ash samples, the samples were combined in various quantities to produce a mix with the best combination. Every blend was subjected to all of the above tests in order to find the best one. The results are graphed so that trends in the various parameters can be seen. The samples were examined with a scanning electron microscope to account for the experimental findings (SEM). Toxic elements have been discovered in the mineralogical data. The aforementioned study and results can assist solve the problem of red mud and ash disposal, as well as increase the alumina and thermal sectors' economic gain to a large extent.

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References


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