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June 4, 2026BuildingsOpen Access

Clay Content of Soils as a Predictive Factor of the Compressive Strength of Unstabilised Rammed Earth

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Authors

ÁBÁlvaro Blanca-HoyosUniversidad de GranadaRCRicardo A. CastroUniversidad de GranadaRGRafael GallegoUniversidad de Granada

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Implication

Randomized trial explores clay content's impact on compressive strength in sustainable construction, suggesting it as a predictive factor.

Key Points

  • To evaluate how varying clay content affects the compressive strength of unstabilised rammed earth (URE).
  • Specimens were prepared from a single local soil with varying clay fractions.
  • Optimum moisture content was determined for all mixtures.
  • One-way ANOVA was used to analyze the influence of clay content on compressive strength.
  • Clay content exhibited a significant impact on unconfined compressive strength.
  • A logarithmic regression model was developed to predict compressive strength based on clay fraction.
  • The study emphasizes that clay fraction, when interpreted alongside mineralogy and moisture state, serves as a useful predictor for URE strength.

Cite This Study

Blanca-Hoyos et al. (2026) studied this question.

synapsesocial.com/papers/6a211689d499ed480b16f7f9https://doi.org/10.3390/buildings16112239
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