International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 11 | Nov 2024
p-ISSN: 2395-0072
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ECO-FLEX PAVEMENT: SUSTAINABLE FLEXIBLE PAVEMENT DESIGN USING WASTE PLASTIC AND RECYCLED CONCRETE AGGREGATE Shivendra Yadav1, Chandra Shekhar Patel2, Abhishek Kumar Yadav3, Akash Kumar Vaishya4 1,2,3,4 Department of Civil Engineering, Rajkiya Engineering College Mainpuri-205001 India
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Abstract - In this study, the use of waste plastic and recycled concrete aggregate (RCA) as cutting-edge, sustainable materials
for road pavement construction is investigated. The purpose of the study is to assess waste plastic bonded with aggregate to be used in the surface course and RCA performance in the GSB (Granular Subbase) layer of flexible pavement for the building of sustainable road infrastructure. The waste plastic is broken up into small pieces, coated in aggregate, combined with heated bitumen, and utilized to create a mixture that is used in the surface course. The analysis is carried out on the plastics used from PET bottles that are considered waste after their use. Bitumen is replaced with plastic at percentages of 3%, 5%, 10%, and 15%. The present study also investigates the results obtained by partially replacing the natural aggregates of the GSB (Granular Subbase) layer of traditional flexible pavement with recycled concrete aggregates by comparing the results of proctor test and CBR values with the specifications and guidelines provided by the Ministry of Road Transport and Highways, Government of India. The physical and mechanical properties of recycled concrete aggregate are almost similar when compared to natural aggregate. The combination of plastic-modified bitumen and recycled aggregates in flexible pavements represents a significant step towards creating more sustainable and resilient road infrastructure. Key Words: Flexible Pavement, Plastic waste, Recycled material, Sustainability, Environment friendly, Durability, Strength, Reduced thickness, Cost effective.
1.INTRODUCTION The global infrastructure industry has been dealing with two major issues in recent years: effectively managing plastic waste and sustainably using construction materials. Innovative methods are being investigated to incorporate waste materials into construction processes in order to address these challenges, with the goal of improving infrastructure performance while also protecting the environment. This project centers on using waste plastic and recycled concrete aggregate (RCA) in the construction of flexible pavements, an essential part of transportation infrastructure. Flexible pavements are created to endure the moving loads caused by vehicular traffic while offering longevity and usability throughout their lifespan. Ahmad M. Abu Abdo and S. J. Jung, (2019) have mentioned that officials in Ras Al Khaimah (RAK), United Arab Emirates are facing a rise in solid waste. UAE are assessing alternatives for reusing these materials instead of disposing of them in landfills. Moreover, busy and slower traffic is causing premature failure of asphalt pavements in RAK paired with scorching temperatures in the summer. To help with the attempts to find a solution this research was carried out to examine the impact of including waste plastic on these issues Incorporating synthetic fibers into Hot Mix Asphalt (HMA). Experiments were carried out on a typical HMA using two different grades of asphalt binder and two levels of waste plastic fiber content (0.5 and 1% of mix weight). The findings indicated that the resistance of HMA to fracture at temperatures of −10 and 21.1°C, as well as rutting, was observed. The addition of waste plastic fibers caused an increase in resistance at a temperature of 54.4°C. Optimizing waste plastic fibers has led to an overall enhancement in the performance of asphalt pavement. The mixture was determined to contain 0.5% of the content by weight. By incorporating waste plastic fibers into HMA, enhancement of asphalt pavements performance by improving resistance to rutting and cracking. Reusing discarded plastic waste could have a beneficial impact on the environment. M. A. Dalhat and H. I. Al-Abdul Wahhab (2015) have been found that there has been a significant increase in waste produced by plastic bottles and similar items in the country of Saudi Arabia. The increased level of industrial activity has led to this outcome. packaging because of quick industrialization and rapid urbanization in the nation. The cost related to the handling of these solid wastes has also increased due to the growing complexity and size of the task. The impact of recycled plastic wastes (RPW) such as polypropylene, high-density polyethylene (HDPE), and low-density polyethylene (LDPE) has been studied. Research has investigated the viscoelastic properties of the asphalt binder in the area. The plastics that were recycled were achieved by tearing and crushing the RPW into a suitable size to facilitate mixing with the asphalt folder. All RPWs lead to enhanced rutting performance. The upper PG limit of RPW-modified asphalts will also be improved. In most instances, there is a minimum one-level increase for every 2% rise in RPW content. A rise of 55 has been observed. A 9% difference in resilient modulus (MR) was found between PP-, HDPE-, and LDPE-made asphalt concrete, with PP showing a 19% variation. (AC), in that
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