Performance of eco-friendly polymers for soil stabilization and their resistance to freeze–thaw action

Construction and Building Materials, Journal Year: 2023, Volume and Issue: 379, P. 131133 - 131133

Published: April 5, 2023

Language: Английский

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Biopolymer stabilization of clayey soil

Journal of Rock Mechanics and Geotechnical Engineering, Journal Year: 2024, Volume and Issue: 16(7), P. 2801 - 2812

Published: April 8, 2024

This study investigates the efficacy of sodium alginate (SA), xanthan gum (XG), guar (GG) and chitosan (CS) — each applied at five different solid biopolymer-to-water mass ratios (or dosages) cured for 7 d 28 on unconfined compressive strength (UCS) performance a high plasticity clayey soil. Moreover, identifying optimum biopolymer-treatment scenarios, their was compared against conventional stabilization using hydrated lime. For given curing time, UCS all biopolymers followed rise–fall trend with increasing biopolymer dosage, peaking an dosage then subsequently decreasing, such that biopolymer-stabilized samples mobilized higher values to unamended The found be 1.5% SA, XG CS, while notably lower 0.5% deemed GG. Similarly, type time from further enhanced UCS, achieved improvements being generally more pronounced XG- CS-treated cases. None investigated able produce equivalent those obtained by 28-d soil–lime samples; however, XG, GG CS dosages, particularly after curing, were easily replicate 7-d lime outcomes as twice soil's demand. Finally, fundamental principles clay chemistry, in conjunction soil mechanics framework, employed identify discuss clay–biopolymer mechanisms.

Language: Английский

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Utilizing expansive soil treated with phosphogypsum and lime in pavement construction

Results in Engineering, Journal Year: 2023, Volume and Issue: 19, P. 101256 - 101256

Published: June 23, 2023

This study investigated the use of phosphogypsum (PG) in long term as a construction material, especially pavement structures. aimed to investigate effect increasing PG percentages on geotechnical parameters Expansive Soil. Extensive laboratory tests were conducted both natural and PG-stabilized soil mixtures examine their compaction properties, consistency limitations, swelling linear shrinkage, pH values, unconfined compressive strength (UCS), California bearing ratio (CBR), scanning electron microscopy (SEM), X-ray Diffraction (XRD). The results showed that addition would significantly reduce plasticity, swell potential. Despite these improvements, concluded treating using only did not affect its physical properties sufficiently be considered subbase. As an alternative, lime was supplemented soil-PG mixture noticed blend 30% 4% improved strength, thereby rendering it appropriate for utilization subbase layer. Mechanistic-Empirical Pavement Design Guide (MEPDG) utilized assess performance sections formed with PG-treated untreated soils. result, this contributes development environmentally sustainable waste management system while also demonstrating potential uses roadway construction.

Language: Английский

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Study on the improvement of soil properties using hydrophilic-hydrophobic biopolymer crosslinking

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 415, P. 135101 - 135101

Published: Jan. 23, 2024

Language: Английский

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A state-of-the-art review on interactive mechanisms and multi-scale application of biopolymers (BPs) in geo-improvement and vegetation growth

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 358, P. 120905 - 120905

Published: April 21, 2024

Language: Английский

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Strength Properties of Clay Treated with Fiber and Biopolymer Subject to Freeze–Thaw Conditions

Journal of Materials in Civil Engineering, Journal Year: 2025, Volume and Issue: 37(5)

Published: Feb. 24, 2025

Language: Английский

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Influence of Enzyme Induced Carbonate Precipitation (EICP) on the Engineering Characteristics of Expansive soil

Arabian Journal for Science and Engineering, Journal Year: 2024, Volume and Issue: 49(10), P. 14101 - 14116

Published: March 27, 2024

Language: Английский

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A state-of-the-art review on the application of lignosulfonate as a green alternative in soil stabilization

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 943, P. 173500 - 173500

Published: May 28, 2024

Language: Английский

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Mechanical, durability, and microstructure of soft clay stabilised with anionic biopolymer

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 417, P. 135343 - 135343

Published: Feb. 1, 2024

Language: Английский

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A review on innovative approaches to expansive soil stabilization: Focussing on EPS beads, sand, and jute

Science and Engineering of Composite Materials, Journal Year: 2024, Volume and Issue: 31(1)

Published: Jan. 1, 2024

Abstract Expansive soils pose major geotechnical challenges due to significant volume changes. This research investigates an innovative stabilization approach using sand, expanded polystyrene (EPS) beads, and jute fibres enhance the properties of expansive soil. The purpose is utilize unique characteristics these admixtures restrict swelling potential improve strength load-bearing capacity. Experimental testing quantified improvements through parameters like unconfined compressive (UCS), pressure, California bearing ratio (CBR), compaction characteristics, Atterberg limits. Soil samples were prepared with individual combined at optimum proportions extensively tested after proper curing. Quantitative results indicated that including EPS increased soil’s UCS by 41, 29, 23%, respectively. on other hand, decreased 14, 18, 11%, Maximum achieved admixtures: 65%, pressure reduced CBR improved from 5 6.5%. Regression analysis a strong correlation ( R 2 = 0.96) between admixture resultant UCS. key achievements are effective control, marked increase in shear parameters, synergy enhancing soil properties. sustainable method industrial by-products presents promising solution for constructing stable civil structures even problematic regions.

Language: Английский

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