Abstract
Coastal cities are in desperate need of suitable land to meet the ever-increasing demand for urban infrastructure to support commercial, residential, tourism, and off-shore activities. Countries with a lengthy coastal line, such as India, possess significant areas of widespread highly saline soils subjected to periodic seawater intrusion. One such soil stratum was encountered in the Gulf of Cambay, Bhavnagar district, Gujarat, India. Due to the high volume of river runoff, the Gulf has a positive water balance. The relative humidity ranges from 65 to 86%, making the climate semi-arid to sub-humid. The high salinity, mineral content, basaltic origin, and deeper water table offered the impetus to investigate the applicability of various soil treatment options for such saline soils. Admixture stabilization techniques have been shown to help with problematic soil features. The Current study aims to determine the effectiveness of the addition of locally available lignite fly ash (10–30% by weight) and cement (6–9% by weight) to Bhavnagar saline soil in respect of strength, electrical conductivity, and CBR. In this assessment, a comparison of stabilized and unstabilized saline soil mixtures is expected to highlight the need of understanding the influence of treatment on the instinctive performance of stabilized saline soils, as well as assist practitioners in efficacious treatment of extreme saline soils for diverse geotechnical and construction applications.
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Parmar, J., Prasad, P.S., Pandya, S., Peddinti, P.R.T. (2024). Geotechnical Assessment of Highly Saline Soil Stabilized with Fly Ash–Cement Admixtures. In: Krishna, A.M., Banerjee, S., Pitchumani, N.K. (eds) Deep Foundations for Infrastructure Development in India. DFIIndia 2022. Lecture Notes in Civil Engineering, vol 373. Springer, Cham. https://doi.org/10.1007/978-3-031-37256-8_18
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DOI: https://doi.org/10.1007/978-3-031-37256-8_18
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