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<p>Recycled construction and demolition (C&amp;D) material is increasingly used in structural and geotechnical infrastructure as a method of carbon neutralization. The primary aim of the current research was to determine the improvement in the properties of stabilized soil by considering different percentages of the crushed construction and demolition waste as stabilizing agents. Geotechnical and morphological studies of the stabilized soil were conducted to identify the improvement in its properties. To determine the risk of the release of organic and inorganic pollutants into the environment, leaching tests were also conducted. The compressive strength studies conducted on the 12% C&amp;D waste added stabilized soil showed an increase of 625% compared to the untreated soil at 28&#xa0;days. A corresponding increase was noted in the California Bearing Ratio values of treated soil compared to the untreated soil. The strains developed in the treated samples were found to be much lower than the untreated soil during the resilient modulus testing. As expected, the settlement and permeability values of 12% C&amp;D waste added treated soil were found to be lower than the untreated soils. Consequently, it can be concluded that using C&amp;D waste to stabilize weak soil is not only a cheap way to dispose of trash but also an environmentally friendly one.</p>

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Enhancing the Geotechnical and Geo-environmental Properties of a Silty Soil with Construction and Demolition Debris

  • 期刊论文

  • 发表日期：

    2025年8月18日

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  • Krishna Kant,
  • Lini Dev

摘要

Recycled construction and demolition (C&D) material is increasingly used in structural and geotechnical infrastructure as a method of carbon neutralization. The primary aim of the current research was to determine the improvement in the properties of stabilized soil by considering different percentages of the crushed construction and demolition waste as stabilizing agents. Geotechnical and morphological studies of the stabilized soil were conducted to identify the improvement in its properties. To determine the risk of the release of organic and inorganic pollutants into the environment, leaching tests were also conducted. The compressive strength studies conducted on the 12% C&D waste added stabilized soil showed an increase of 625% compared to the untreated soil at 28 days. A corresponding increase was noted in the California Bearing Ratio values of treated soil compared to the untreated soil. The strains developed in the treated samples were found to be much lower than the untreated soil during the resilient modulus testing. As expected, the settlement and permeability values of 12% C&D waste added treated soil were found to be lower than the untreated soils. Consequently, it can be concluded that using C&D waste to stabilize weak soil is not only a cheap way to dispose of trash but also an environmentally friendly one.