International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 05 | May 2025
p-ISSN: 2395-0072
www.irjet.net
E-Waste Management by Utilization Of E-Plastics in Concrete Mixture as Coarse Aggregate Jagdish Pawar1, Prof. Kunal Ghadge2 1PG student, Department of Civil (Structural) Engineering, Sanmati Engineering College, Washim, Maharashtra
2Head of Dept. Department of Civil (Structural) Engineering, Sanmati Engineering College, Washim, Maharashtra
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Abstract - Concrete is the most widely used building material in the construction industry, primarily due to its high strength and durability. As the world progresses rapidly, concerns for the environment and the need to safeguard natural resources have become increasingly important. One innovative approach is the recycling of waste materials, including electronic waste (E-waste), in the concrete industry. This research aims to utilize E-waste that is free from harmful chemicals as an alternative for coarse aggregate, while also exploring the use of wire and cable residues as a replacement for fine aggregate in concrete. A literature review revealed that circuit board waste can substitute for up to 10% of coarse aggregate by weight. However, there has been no previous attempt to use wire and cable residues as an alternative for fine aggregates. Therefore, this study will implement varying dosages of cable residues. Concrete mix design will be carried out following IS 10262:2019 and IS 456:2000 standards for M20 grade concrete. The compressive strength of the concrete with E-waste will be assessed at 7 day and 28 days using three cubes of size 150 mm x 150 mm x 150 mm tested in a Compression Testing Machine (CTM). The split tensile strength will be evaluated by testing three cylinders with a diameter of 150 mm and a height of 300 mm in the CTM, while the flexural strength will be determined by casting three prisms of size 500 mm x 100 mm x 100 mm and testing them in a flexural strength testing machine for each percentage of replacement. Results indicate that beyond a 10% replacement of both coarse and fine aggregates, the compressive strength falls below the required minimum strength for this specific grade of concrete. Consequently, the maximum allowable replacement for coarse and fine aggregates is 10%. Additionally, both split tensile strength and flexural strength decrease as the percentage of fine aggregate replacement increases. . Key Words: E-Waste, Circuit board, Compressive strength, Flexural strength.
1.INTRODUCTION Concrete is the most commonly used building material in the construction industry, primarily due to its high strength and durability. As our world advances rapidly, there is growing attention toward environmental preservation and the recycling of waste materials. One emerging waste material utilized in the concrete industry is electronic waste (E-waste). E-waste refers to discarded electrical or electronic devices, including second-hand electronics destined for recovery, resale, salvage, recycling, or disposal. The rise of electronic waste has become a significant concern due to its potential for severe contamination of both human health and the environment. Utilizing E-waste in the concrete industry is seen as a feasible solution to manage the large volumes of waste generated. In developing countries, the release of electronic waste can lead to serious health and pollution problems, as electronic equipment often contains hazardous materials such as mercury, nickel, silver, zinc, lead, cadmium, beryllium, arsenic, copper, chrome, and cobalt. This paper focuses on non-hazardous materials suitable for use in construction. Among the most common materials found in electrical and electronic equipment are iron and steel, followed by plastics, which constitute the secondlargest component of e-waste. Depending on its chemical composition, e-waste can be repurposed as coarse aggregate, fine aggregate, or fine filler in concrete. In recent years, there has been an increasing awareness of our environmental impact stemming from consumer habits, emphasizing the need for a more sustainable approach. This shift is particularly relevant to industries influencing consumer behavior, especially in the electronics sector, where short life cycles and rapidly evolving technology have led to growing volumes of e-waste. Unfortunately, a significant amount of e-waste ultimately ends up in landfills. Yet, the partial recyclability of many e-waste components has prompted the development of retrieval techniques for their recycling and reuse, underscoring the importance of e-waste management from both a waste minimization and material recovery perspective.
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