International Journal For Multidisciplinary Research

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IMPROVEMENT IN THE BEARING CAPACITY OF BLACK COTTON SOIL: E-WASTE STABILIZERS

Author(s) Mr. Tushar Ramesh Tulshigiriwar, Mr. Harsh Sanjay Sawale, Ms. Vanshika Prashant Yengantiwar, Ms. Payal Anil Bharati, Ms. Ritika Vijay Nanotkar, Dr. Ashwini Tenpe
Country India
Abstract Black cotton soil, known for its high clay content, low shear strength, and significant swell-shrink behavior, possesses serious challenges in civil engineering constructions such as pavements and foundations. To overcome these limitations, soil stabilization techniques are employed to improve strength and reduce volumetric changes. Conventional stabilizers like lime, cement, and fly ash, although effective, have environmental and economic drawbacks.
This study investigates the use of electronic waste (e-waste) as an alternative eco-friendly stabilizer to enhance the bearing capacity of black cotton soil. Crushed e-waste materials such as printed circuit boards, CDs, and wires were added to the soil in varying proportions (4%, 8%, and 12% by weight). Different laboratory tests including water content, specific gravity, Atterberg limits i.e. Liquid limit (LL), Plastic Limit (PL) and Plasticity Index (PI), compaction, Free swell Index (FSI) and soil classification were conducted without stabilization. California Bearing Ratio (CBR) were conducted with and without stabilization.
The results revealed that the inclusion of e-waste improved the CBR value and reduced the swelling and shrinkage potential of black cotton soil. The maximum improvement in bearing capacity was observed at 8% e-waste content. The findings demonstrate that using e-waste as a soil stabilizer is not only technically effective but also promotes sustainable waste management by recycling non-biodegradable materials.
Keywords Black cotton soil, e-waste, soil stabilization, California Bearing Ratio, bearing capacity.
Field Engineering
Published In Volume 7, Issue 6, November-December 2025
Published On 2025-12-02
DOI https://doi.org/10.36948/ijfmr.2025.v07i06.62277
Short DOI https://doi.org/hbdsjh
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