International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 12 Issue: 06 | Jun 2025
p-ISSN: 2395-0072
www.irjet.net
UTILIZATION OF PLASTIC WASTE AS A PARTIAL REPLACEMENT OF AGGREGATE IN PAVER BLOCKS Shreyash Hiwrale1, Ketan Borse2, Sambodhi Dhutaraj3, Aditya Gaikwad4 1 Prof. Wayal Ganesh (Assistant Professor)
(Department Of Civil Engineering, JSPM’s Rajarshi Shahu College of Engineering, Tathawade-411033, Pune, India) (Department Of Civil Engineering B. Tech, JSPM’s RSCOE, Pune, India) ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - The swift industrial growth and urban
disposed of properly, they can lead to serious environmental problems, like clogged drainage systems and air pollution from open burning.
expansion in the country have sparked a significant amount of infrastructure development. However, this rapid progress brings along a host of challenges, such as a shortage of construction materials and an increase in waste production. This paper focuses on the innovative reuse of waste plastics as a partial substitute for coarse aggregate in M30 concrete, which is commonly used in various construction projects. We experimented by adding waste plastics in increments of 0%, 30%, 40%, and 50% to replace an equivalent amount of aggregate. Paver blocks, which are pre-cast blocks utilized in constructing different types of pavements, primarily consist of cement, coarse aggregate, and fine aggregate. With the rising scarcity of raw materials, the costs associated with these materials are also climbing rapidly. To tackle this issue, we proposed the idea of partially substituting coarse aggregate with plastic waste. Given the increasing presence of plastic waste in our environment and the challenges of recycling it, we aimed to effectively repurpose it by replacing some of the coarse aggregates with shredded plastic waste. The paver blocks were then cast and cured in the lab, and we conducted tests on various strength parameters to analyze the results.
To address the dwindling supply of natural aggregates and the environmental challenges posed by plastic waste, this research explores an innovative solution: using shredded plastic waste as a partial replacement for coarse aggregates in making concrete paver blocks. We experimented with industrial plastic waste, particularly polypropylene (PP), at different percentages—0%, 30%, 40%, and 50% by volume—to see how it affects the properties of concrete. This approach not only promotes sustainable construction practices but also offers a practical way to manage plastic waste effectively. Paver blocks, also known as paving blocks or pavement blocks, come in various materials and shapes, including concrete, clay, and natural stone. Common shapes include rectangular, square, hexagonal, and interlocking varieties. Made from a mix of cement, water, and aggregates like sand or gravel, these are the most common and affordable type. They are versatile and come in various colors and shapes.
Key Words: Paver Blocks, Waste Plastic, LDPE, HDPE, Coarse aggregate. 1.INTRODUCTION Concrete paver blocks are those handy, prefabricated units made from a mix of cement, fine aggregates, and coarse aggregates. You’ll find them widely used for creating pavements, walkways, driveways, and various outdoor surfaces. Their popularity is no accident; they’re strong, visually appealing, and super convenient when it comes to replacing individual units. Plus, the modular design makes maintenance and repairs a breeze, which is why they’re a go-to choice for both residential and commercial projects. One major issue we face with rapid urbanization is the growing mountain of plastic waste, especially those pesky single-use plastic bags made from low-density polypropylene (LDPP). When these plastics aren’t
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Figure 1 Types of Paver Blocks
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