Investigation of Mechanical Properties and Microstructural Characteristics of Earth-Based Pavements Stabilised with Various Bio-Based Binders

Polymers, Journal Year: 2025, Volume and Issue: 17(7), P. 864 - 864

Published: March 24, 2025

For centuries, earthen materials have regained popularity because of the high carbon emissions caused by construction sector. Although earth-based possess superior properties, such as recyclability, easy accessibility, affordability, and thermal conductivity, they are not without drawbacks. They are, for instance, relatively weak sensitive to water, their physical chemical properties can vary considerably depending on source from which obtained. Stabilisation is often used overcome these In this study, natural were stabilised with biopolymers organic origin, alginate, Arabic gum, xanthan locust bean preserve properties. To produce samples, earth material in road sub-base layer was mixed kaolin clay silica sand, mixtures prepared substituting biopolymer at a ratio 0.1%. After determining fresh unit volume weights, spreading diameters (flow table test), penetration depths (fall cone air content mixtures, flexural compressive strengths cured specimens measured. addition, scanning electron microscopy (SEM) X-ray diffraction (XRD) analyses performed determine microstructural characteristics. According 28-day strength results, mix gum found be almost twice strong other mixes. It has been concluded that biopolymer-stabilised fill buildings where required, or paving low-traffic roads.

Language: Английский

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Rheological aspects of xanthan gum: Governing factors and applications in water-based drilling fluids and enhanced oil recovery

Carbohydrate Polymers, Journal Year: 2025, Volume and Issue: unknown, P. 123579 - 123579

Published: April 1, 2025

Language: Английский

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Mechanical Properties and Microscopic Mechanism of Granite Residual Soil Stabilized with Biopolymers

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(10), P. 5223 - 5223

Published: May 8, 2025

Granite residual soil exhibits a tendency to collapse and disintegrate upon exposure water, displaying highly unstable mechanical properties. This makes it susceptible landslides, mudslides, other geological hazards. In this study, three common biopolymers, i.e., xanthan gum (XG), locust bean (LBG), guar (GG), are employed improve the strength stability of granite soil. A series experiments were conducted on biopolymer-modified soil, varying types their concentrations, curing times, examine effects soil’s properties failure characteristics. The microscopic structure interaction mechanisms between biopolymers analyzed using scanning electron microscopy X-ray diffraction. results indicate that gum-treated exhibited highest unconfined compressive shear strength. After adding 2.0% gum, modified 1.6 times 1.58 untreated respectively. Optimal improvements observed when biopolymer concentration ranged from 1.5% 2%, with time 14 days. treatment cohesion is 1.36 1.34 1.55 enhanced bonding through cross-linking, thereby improving gel-like substances formed by reaction water adhered encapsulated particles, significantly altering deformation behavior, toughness, modes. Furthermore, interactions minerals functional groups contributed further enhancement study demonstrates feasibility offering theoretical insights into underlying govern improvement.

Language: Английский

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Investigation into the Mechanical Properties and Microscopic Mechanisms of Dispersive Saline Soil Improved by Environmentally Friendly Biopolymers

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: unknown, P. 115222 - 115222

Published: Dec. 1, 2024

Language: Английский

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