Isolated Effect and Sensitivity of Agricultural and Industrial Waste Ca-Based Stabilizer Materials (CSMs) in Evaluating Swell Shrink Nature of Palygorskite-Rich Clays
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Date
2021
Journal Title
Journal ISSN
Volume Title
Publisher
Advances in Civil Engineering
Abstract
*is paper evaluates the suitability of sugarcane bagasse ash (SCBA) and waste marble dust (WMD) on the geotechnical properties
of Palygorskite-rich expansive clays located in northwest Pakistan. *ese problematic soils exhibit undesirable characteristics
which greatly affect the pavements, boundary walls, slab-on-grade members, and other civil engineering infrastructures. A series
of geotechnical tests were performed on soil specimens using prescribed percentages of the aforementioned Ca-based stabilizer
materials (CSMs). *e investigation includes X-Ray Diffraction (XRD) Analysis, Scanning Electron Microscopy (SEM), X-Ray
Fluorescence (XRF) tests, and physicomechanical properties such as moisture-density relationship, Atterberg’s limits, swell
pressure, and an ANN-based sensitivity analyses of overall swell pressure development. *e outcomes of these experimental
investigations showed that the addition of CSMs into the expansive soils increased to 4% SCBA and 10% WMD, the plasticity
index reduced by 30% and 49%, the volumetric swell decreased from approximately 49% to 86% and 63%, and the swelling
pressure reduction was from 189 kPa to 120 kPa and 160 kPa (about 15% and 36%), respectively. It is interesting to note that
replacement with specified CSM accelerated the strength of soil at extended curing periods and the optimum improvement in the
strength behavior of the soil was also recorded. Moreover, with addition of the respective CSMs, the compactability and strength
characteristics were ameliorated, while plasticity was significantly lowered. Given the amount of SCBA and WMD produced
annually, their utilization for the stabilization of problematic soils, even in relatively low concentrations, could potentially have a
substantial impact on the sustainable reuse of these waste materials.
Description
Keywords
Agricultural and Industrial Waste, Ca-Based Stabilizer Materials (CSMs), Palygorskite-Rich Clays
Citation
Jalal, FE, Jamhiri, B., Naseem, A., Hussain, M., Iqbal, M., & Onyelowe, K. (2021). Isolated effect and sensitivity of agricultural and industrial waste Ca-based stabilizer materials (CSMs) in evaluating swell shrink nature of palygorskite-rich clays. Advances in Civil Engineering , 2021 . https://doi.org/10.1155/2021/7752007