Sustainable Engineering: Utilisation of Biomedical Waste Ash for Untapped Potential in Soil Stabilisation DOI Creative Commons
Pooja Somadas, Purushotham G Sarvade

International Journal of Sustainable Engineering, Journal Year: 2024, Volume and Issue: 17(1), P. 1066 - 1082

Published: Nov. 27, 2024

The disposal of biomedical waste (BMW) ash presents a growing environmental concern due to its potential contaminate ecosystems and causes health hazards. This study explores an innovative solution by utilising BMW as sustainable stabiliser enhance the geotechnical properties soft soil, which exhibits low strength high plasticity characteristics. Through application Taguchi method, influence concentration curing period on soil such compaction, pH, electrical conductivity, unconfined compressive (UCS) were evaluated. experimental results show that adding significantly reduces increases UCS, achieving gain more than 180 kPa within 14 days. optimal combination was determined be 20% with 14-day period. Analysis variance (ANOVA) revealed time is dominant factor, contributing 90.86% early development. Microstructural analysis using SEM EDX further reveals formation ettringite, promotes gain. research demonstrates dual benefits in mitigating while improving performance, offering viable for both management stabilisation challenges.

Language: Английский

Stabilization of Clayey Soils Using Non-Traditional Aggregates: A Review DOI Open Access
Allan Rojas,

Manuel Laurencio Luna

Civil Engineering and Architecture, Journal Year: 2025, Volume and Issue: 13(1), P. 559 - 578

Published: Jan. 1, 2025

The bibliographic review carried out contemplated the studies performed for chemical stabilization of clayey soils, which can be problematic due to their deficiency in physical and mechanical properties construction.The included following article were born from initiative seek new alternatives use cement lime, particularly reduction or elimination as traditional stabilizers, well better manage disposal industrial waste.The incorporated evaluated by geopolymerization, reinforcement, common additives with other aggregates residues.Stabilization effectiveness is measured primarily results such optimum moisture content (OMC) maximum dry density (MDD), both obtained through compaction tests unconfined compressive strength (UCS) bearing capacity (CBR).To a lesser extent, study improvements related durability, flexibility, permeability, among others, also contemplated; studies, despite improving main deepened research obtain more information on soils.

Language: Английский

Citations

0
Advanced stabilization of clayey sand using xanthan gum: insights from multiscale evaluation and ultrasonic pulse velocity analysis DOI Creative Commons

Fatemeh Abbasi,

Asskar Janalizadeh Choobbasti,

Kaveh Roushan

et al.

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 104419 - 104419

Published: Feb. 1, 2025

Language: Английский

Citations

0
Exploring the impact of temperature in valorising digestate as a strength enhancer of the expansive soil DOI
Arunthathi Sendilvadivelu,

S. V. Sivapriya,

Balaji Dhandapani

et al.

Bulletin of Materials Science, Journal Year: 2025, Volume and Issue: 48(1)

Published: Feb. 19, 2025

Language: Английский

Citations

0
Chemical Mechanisms of Cement Stabilization and Durability Enhancement in High-Content Modified Phosphogypsum DOI Creative Commons
Bin Xu, Yingxin Zhou, Zijing Wu

et al.

Buildings, Journal Year: 2025, Volume and Issue: 15(5), P. 723 - 723

Published: Feb. 24, 2025

Phosphogypsum, a byproduct of phosphate fertilizer production, accumulates in large quantities annually, posing significant environmental challenges due to harmful components such as fluorine, heavy metals, and acidic salts. To mitigate these issues, phosphogypsum is often combined with cement single modifiers sodium silicate, hydrated lime, defluorinating agents for use pavement applications. However, concerns about the durability unmodified or singly modified high-content have hindered its widespread adoption. address this issue, study explored composite enhance cement-stabilized phosphogypsum. The mechanisms modification by individual additives were investigated using X-ray diffraction (XRD) scanning electron microscopy (SEM). Durability was evaluated through three-point bending fatigue, freeze–thaw, drying shrinkage tests on both results demonstrated that significantly improved material’s density, strength, stability enhancing hydration products stabilizing fluoride ions. material exhibited superior fatigue freeze–thaw resistance, reduced mass loss slower strength decline compared Additionally, showed performance enhanced hydration. caution recommended when materials regions high moisture content temperature fluctuations.

Language: Английский

Citations

0
Enhancement of Micro-mechanical Characteristics of Expansive Soil through Synergistic Incorporation of Jute and Nylon Fibers with Cement DOI Creative Commons
Shantanu Paul, Ashna Tasnim,

J Dutta Majumder

et al.

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 104685 - 104685

Published: March 1, 2025

Language: Английский

Citations

0
Expansive Soil Treated with Circulating Fluidized Bed Ash Slag as Subgrade Fill: Engineering Performance Evaluation and Enhancement DOI
Siyuan Li, Shulin Sun,

Abdalwahab Omar Salih Alnur

et al.

Journal of Materials in Civil Engineering, Journal Year: 2025, Volume and Issue: 37(6)

Published: March 28, 2025

Language: Английский

Citations

0
Microstructural Characterization of Expansive Soil Stabilized with Coconut Husk Ash: A Multi-Technique Investigation into Mineralogy, Pore Architecture, and Surface Interactions DOI Open Access
Ankur Abhishek, Anasua GuhaRay, Toshiro Hata

et al.

Minerals, Journal Year: 2025, Volume and Issue: 15(5), P. 516 - 516

Published: May 14, 2025

Black cotton soil (BCS) is unsuitable for construction due to its high plasticity, low shear strength, and significant volume changes upon wetting drying. The present study investigates the effectiveness of an alkali-activated coconut husk ash (CHA) binder in improving geotechnical properties BCS. CHA derived from serves as a sustainable binder. Microstructural characterization untreated CHA-treated BCS was carried out using scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), Fourier transform infrared (FTIR). specific surface area (SSA) porosity were evaluated nitrogen gas adsorption methods based on Brunauer–Emmett–Teller (BET) Langmuir techniques. Barrett–Joyner–Halenda (BJH) method demonstrated decrease mean pore diameter 6.7 nm 6.2 following treatment. SSA diminished 40.94 m2/g 25.59 m2/g, signifying development calcium silicate hydrate (C-S-H) gels that occupied spaces. formation pozzolanic reaction products enhanced microstructural integrity treated soil. Unconfined compressive strength (UCS) test results at 24 h 28 days curing have been incorporated analyze optimum content. UCS values significantly 182 kPa 305 1030 kPa, respectively, 9% content after curing. mechanical analysis indicated feasible environmentally substitute stabilization. CHA-based AAB will be eco-friendly alternative cement lime, reducing CO2 emissions costs.

Language: Английский

Citations

0
Influence of Hemp Fiber on the Mechanical Characteristics and Freeze-Thaw Durability of LKD-Nano Silica-Stabilized Kaolin Soil DOI Creative Commons

Seyed Amir Mir Moayed,

Mahyar Arabani, Hadi Ahmadi

et al.

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 105318 - 105318

Published: May 1, 2025

Language: Английский

Citations

0
Composite Materials Based on Phosphogypsum for Constructive Layers of Road Pavement DOI Open Access
Yurii Novytskyi, Nataliia Topylko, Uliana Marushchak

et al.

Chemistry & Chemical Technology, Journal Year: 2024, Volume and Issue: 18(1), P. 7 - 15

Published: March 25, 2024

The article contains research materials on solving the problem of utilization waste phosphogypsum by using it in layers road base. For this purpose, composite mixtures based raw dump were prepared. composition was optimized to maximize content. stabilized with ground granulated blast furnace slag and Portland cement. Laboratory tests have shown that phosphogypsum-based meet requirements National Standard Ukraine DSTU 9177-3:2022 terms uniaxial compressive strength frost resistance. newly formed mineral phases during hydration phosphogypsum-ground slag-Portland cement described X-ray diffractometric analysis.

Language: Английский

Citations

3
Study and analysis of seasonal soil degradation in Lower Guinea and Forest Guinea DOI Creative Commons
Ibrahima Diogo Diallo, Amine Tilioua,

Chakib Darraz

et al.

Results in Engineering, Journal Year: 2023, Volume and Issue: 19, P. 101381 - 101381

Published: Aug. 26, 2023

Seasonal degradation of roads has become a recurring concern over the last two decades in Guinea. The most visible causes are those their supports: soil. Out for consequences this scourge on daily life population, aim study is to understand and propose solutions. On Coyah_Kindia road, terrible traffic jam was recorded September 14, 2020 (∼3H/Km). humidity road surface layers gives them very slippery characteristics, reflecting plastic fringe fine fractions. Péla-Yomou section, during rainshowers 22 km section along Yomou-Nzérékoré national shows enormous roads, with acute soil slippage (even pedestrians). Our GIS remote sensing work removes ambiguity about main reasons degradations, which more attributable erosion than destruction vegetation cover (seen as whole not analysis classes that make it up), which, intervals years [1982, 2021], fluctuates from 70%, 63%, 67% 71% Coyah, against 61%, 57% 68% Kindia, then 68%, 88%, 69% 73% Yomou. geoscientific analyses show diversity facies terms age, nature reaction permanent constraints (meteorological anthropogenic) they subjected, while soils, often less indurated weathered places, great sensitivity landslides low-lying areas crossed by roads.

Language: Английский

Citations

7