Stabilization of expansive clay by fibre-reinforced alkali-activated binder: an experimental investigation and prediction modelling

Syed, Mazhar; GuhaRay, Anasua

doi:10.1080/19386362.2020.1775358

Cited by 16 publications

(3 citation statements)

References 60 publications

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“…Adding CDW powder to the soil mass made the sample more resistant to loading and resulted in a lower settlement ( Horpibulsuk et al., 2012 ; Muktinutalapati et al., 2020 ). Other studies showed, CDW raised the bearing capacity and strength of the soil in a significant way ( Cardoso et al., 2016 ; Mazhar and GuhaRay, 2020 ; Naeini et al., 2019 ). The soil sample with circular CDW columns in triangular and square patterns showed the highest resistance and lowest settlement, though both tests showed similar final settlements.…”

Section: Resultsmentioning

confidence: 85%

Improvement of consolidation properties of clay soil using fine-grained construction and demolition waste

Islam

Islam²,

Hoque³

et al. 2022

Heliyon

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Section: Resultsmentioning

confidence: 85%

Improvement of consolidation properties of clay soil using fine-grained construction and demolition waste

Islam

Islam²,

Hoque³

et al. 2022

Heliyon

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“…The samples were completely covered by platinum under a high vacuum environment during sample preparation. Moreover, the EDAX method was used to find the major elemental composition on the surface of treated particles [8,15,[20][21][22].…”

Section: Preparation Of Samplesmentioning

confidence: 99%

Influence of Biomass Silica Stabilizer on Unconfined Compression Strength of Sodium Silicate Stabilized Soft Clay Soils

Nor

Tajudin

Pakir

et al. 2022

ARASET

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Soft clay often causes difficulty in construction operations with regards to strength and low hardness properties. Therefore, the need for soil stabilization is crucial in construction to ensure the stability of the soil strength and stiffness for each building to be built. This research was carried out to study the stabilization of clay in Batu Pahat using additional materials namely sodium silicate liquid and biomass silica powder. Soft clay samples were collected from the Research Centre for Soft Soils of Universiti Tun Hussein Onn Malaysia. The result shows that the liquid limit of the soil decreases while plastic limit increases with the addition of sodium silicate and biomass silica. As a result, the plasticity index reduces with the increment of both stabilizer's content. The strength increases at as early as 3 days after stabilization and constantly increases from 7 to 28 days curing period. The results of the unconfined compression strength test showed that the optimum amount of this stabilization process for the soil sample was three and nine percents of sodium silicate and biomass silica stabilizers, respectively. Additionally, the voids were filled with a stabilizing substance during the SEM testing. Cementation product was detected via the SEM test as a result of the stabilizer given to treated samples. The EDAX test established that the appearance of the Calcium element in the treated sample is a result of the stabilizer's chemical composition. This study demonstrates how biomass Silica significantly affected the increase in soil strength by creating cementation in the soft clay structure. Furthermore, sodium silicate plays a role in increasing soil strength, largely by acting as a binder between soil particles.

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“…e target locations were chosen randomly at various magnifications by gentle beam of electromagnetic lenses, maintaining 25 kV excitation voltages. At least three surface morphologies of each sample were captured at various magnifications (2500x, 5000x, and 10000x) [88]. e bigger particles in the SEM images represent presence of quartz in soil while the smaller portion of matrix illustrates presence of smectites which have higher affinity for water and are problematic.…”

Section: Experimental Investigationmentioning

confidence: 99%

Isolated Effect and Sensitivity of Agricultural and Industrial Waste Ca-Based Stabilizer Materials (CSMs) in Evaluating Swell Shrink Nature of Palygorskite-Rich Clays

Jalal

Jamhiri

Naseem

et al. 2021

Advances in Civil Engineering

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This 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. These 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). The 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. The 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.

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Stabilization of expansive clay by fibre-reinforced alkali-activated binder: an experimental investigation and prediction modelling

Cited by 16 publications

References 60 publications

Improvement of consolidation properties of clay soil using fine-grained construction and demolition waste

Improvement of consolidation properties of clay soil using fine-grained construction and demolition waste

Influence of Biomass Silica Stabilizer on Unconfined Compression Strength of Sodium Silicate Stabilized Soft Clay Soils

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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