Correlation between one-dimensional consolidation coefficients and different basalt fiber lengths and RHA-cement contents in fiber-reinforced stabilized expansive soils

Owino, Alex Otieno; Hossain, Zakaria

doi:10.1016/j.sandf.2023.101351

Cited by 1 publication

(1 citation statement)

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“…Soil stabilization is a good option to ameliorate strength and settlement parameters by using waste fibers for project sustainability on a long-term basis [4]. Environment-friendly modification of compressibility properties of high-plastic expansive clays by use of fibers is gaining high trend in this era [5].…”

Section: Introductionmentioning

confidence: 99%

Prediction of Compression Index from Secant Elastic Modulus and Peak Strength of High Plastic Clay Ameliorated by Agro-Synthetic Waste Fibers for Green Subgrade

Zubair,

Farooq,

Farooq

et al. 2023

Sustainability

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Agro-synthetic stabilization of high-plastic clay is trending due to its vital role in sustainable geotechnical construction and maintenance of clay subgrade. Remoulded samples of high plastic clay (C), ameliorated by optimal doses of 1.2% polyester (P) and 0.9% banana (B) at maximum dry density (γdmax) and optimum moisture content (OMC), were subjected to swell potential, unconsolidated undrained (CU) triaxial, consolidation, and California bearing ratio (CBR) tests. The outcome of this research presents that the use of an optimal clay-polyester-banana (CPB) mix enhanced the secant elastic modulus (E50), peak strength (Sp), and CBR by 2.5, 2.43, and 2.7 times, respectively; increased E50/Cc increased from 12.29 to 53.75 MPa; and lowered the swell potential by 48% and compression index (Cc) by 42.8%. It was also observed that the increase in moisture content (mc) of the optimal CPB mix from 20% (unsaturated phase) to 32% (wet phase) decreased Sp from 212 kPa to 56 kPa and E50 from 8.42 MPa to 2.16 MPa, whereas Cc was increased from 0.16 to 0.26, depicting the potential use of the CPB mix as a stable and sustainable geotechnical material even in wet seasons. Novel correlations are developed for the prediction of Cc from mc, E50, and Sp for an optimal CPB mix to achieve sustainable geotechnical systems and designs in sustainable geo-environmental engineering.

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Section: Introductionmentioning

confidence: 99%