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March 21, 2026Civil Engineering and ArchitectureOpen Access

Stabilization of Clayey Soils with Eucalyptus Ash from Artisanal Kilns: An Experimental Evaluation in San Agustín (Huancayo)

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Authors

JGJosé Javier Ortega GómezAAAna Ayquipa AndiaMPMaría del Pilar Chávez Pacheco

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Overview

Experimental evaluation demonstrates eucalyptus ash improves bearing capacity in clay subgrades, suggesting sustainable use in construction.

Key Points

  • This research aims to evaluate the potential of eucalyptus ash as a stabilizer for low-bearing capacity clay soils in the Andean region.
  • Prepared soil-ash mixtures at 0, 10, 20, and 30% by dry mass
  • Conducted grain-size distribution analysis, Atterberg limits, and modified Proctor tests
  • Performed California Bearing Ratio tests after soaking for 96 hours
  • Utilized consolidated drained direct shear tests for mechanical characterization
  • The 20% ash mix showed a CBR increase from 3.16% to 9.13%, nearly tripling the natural clay value
  • Expansion decreased from 4.8% to 1.6% for the 20% mix
  • Cohesion increased from 0.100 to 0.169 kgf/cm² and friction angle from 25.97° to 29.90°

Cite This Study

Gómez et al. (2026) studied this question.

synapsesocial.com/papers/69be35e66e48c4981c674634https://doi.org/10.13189/cea.2026.140237
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