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August 9, 2026Scientific Reports0 citationsOpen Access

Shear Strength and Permeability of Biopolymer-Stabilized Soils

Experimental investigation on the shear strength, consolidation and permeability characteristics of cross-linked biopolymer-stabilized soils

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Authors

MKM. Ashok KumarAMArif Ali Baig MoghalBDBrajesh Dubey

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Overview

Experimental investigation shows biopolymers enhance soil properties, indicating sustainable geotechnical solutions.

Key Points

  • The aim is to evaluate how cross-linked biopolymers affect the shear strength, consolidation, and permeability of various soils.
  • Direct shear, one-dimensional consolidation, and constant head permeability tests were performed.
  • SEM and XRD analyses were conducted on soils treated with guar gum and xanthan gum combinations.
  • The study included varying plasticities and mineralogies of soils over 28 days of curing.
  • Cohesion in high-plasticity soil increased from 56.87 kPa to 81.39 kPa; friction angle increased from 7.8° to 10.5°.
  • In medium-plasticity soil, cohesion reached 77.47 kPa with a friction angle of 12.2°.
  • Hydraulic conductivity decreased significantly, reaching values of 8.45 × 10⁻⁹ cm/s in treated soils.

Cite This Study

Kumar et al. (2026) studied this question.

synapsesocial.com/papers/6a782cfa2e1896536c83fc77https://doi.org/10.1038/s41598-026-65146-8
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