International Journal on Science and Technology

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Effect of PET Fiber Geometry and Copper Slag on the Mechanical Properties and Durability of Concrete

Author(s) Bhuriya Dayal Dinabhai, Hiral Apurva Dave, Dr. Vijaykumar B. Gadhvi
Country India
Abstract With increasing concerns regarding plastic waste and its environmental impact, the construction industry has started exploring sustainable alternatives to traditional materials. This research investigates the use of recycled polyethylene terephthalate (PET) fibers and copper slag as partial replacements for conventional concrete ingredients. PET fibers, obtained from waste drinking water bottles, were used in three different geometries: straight, flattened, and 'O' shapes, each at a 0.5% weight of cement. Copper slag, a by-product of copper extraction, was incorporated as a fine aggregate replacement at 0%, 20%, 40%, and 60% levels. The study focuses on the impact of these additions on the fresh and hardened properties of concrete. Experimental results indicate that the combination of 'O' shaped PET fibers and 60% copper slag significantly enhances the compressive strength, split tensile strength, and flexural strength by 25.85%, 26.39%, and 28.09%, respectively. Additionally, the combination improved water resistance, showcasing a reduction in water absorption. The study concludes that PET fibers and copper slag can significantly enhance the mechanical and durability properties of concrete, making it a more sustainable alternative for construction applications.
Keywords Concrete, Copper slag, PET fiber, Fiber geometry, Workability, Compressive strength, Split tensile strength, Flexural strength, Water absorption, Sulphury acid attack
Field Engineering
Published In Volume 16, Issue 2, April-June 2025
Published On 2025-05-29
DOI https://doi.org/10.71097/IJSAT.v16.i2.4181
Short DOI https://doi.org/g9mpbm
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