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<p>Designing a sustainable foundation system on weak grounds to support the infrastructure entails the requirement of soil improvement. This study aimed to fix the serviceability issues faced by lightweight infrastructure resting on sheared clays. Two additives, namely industrial waste glass powder and polypropylene fibers, were used in varying proportions to reduce the swelling strains and compression indices of the soil supporting isolated footings with a maximum loading of 98.10 kN. Gradation analysis, Atterberg limits, standard Proctor compaction, one dimensional consolidation, and swell tests were performed on the remolded samples of base and modified soil. The laboratory test results showed maximum reduction in compression indices and swelling strains of 77.5% and 17.41% with 20% inclusion of glass powder in the base soil whereas 80% and 92% for 1.25% of polypropylene fibers, respectively. Besides, the isolated footing to support a column with 98.10 kN load was economized by 53% by using 20% glass powder as additive whereas for 1% polypropylene fibers, it was 44%. Based on the study, it was concluded that both these additives can be eco-friendly modifiers to address the serviceability issue economically.</p>

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Improvement in swell and consolidation behavior of sheard clay using glass powder and polypropylene fibers as additives

  • 期刊论文

  • 发表日期：

    2025年10月11日

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  • Syed Zishan Ashiq,
  • Babar Naseem Khan Raja,
  • Syed Minhaj Saleem Kazmi,
  • Muhammad Junaid Munir,
  • Muhammad Hassan

摘要

Designing a sustainable foundation system on weak grounds to support the infrastructure entails the requirement of soil improvement. This study aimed to fix the serviceability issues faced by lightweight infrastructure resting on sheared clays. Two additives, namely industrial waste glass powder and polypropylene fibers, were used in varying proportions to reduce the swelling strains and compression indices of the soil supporting isolated footings with a maximum loading of 98.10 kN. Gradation analysis, Atterberg limits, standard Proctor compaction, one dimensional consolidation, and swell tests were performed on the remolded samples of base and modified soil. The laboratory test results showed maximum reduction in compression indices and swelling strains of 77.5% and 17.41% with 20% inclusion of glass powder in the base soil whereas 80% and 92% for 1.25% of polypropylene fibers, respectively. Besides, the isolated footing to support a column with 98.10 kN load was economized by 53% by using 20% glass powder as additive whereas for 1% polypropylene fibers, it was 44%. Based on the study, it was concluded that both these additives can be eco-friendly modifiers to address the serviceability issue economically.