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61,005 resultsShowing papers similar to Optimization of Asphalt Concrete Performance Using Waste Plastic Bottles (WPB) as a Sustainable Bitumen Modifier: A Comprehensive Rheological and Mechanical Assessment
ClearEffects of marine microplastics on the mechanical performance of bituminous binder for road asphalt pavements
Researchers investigated the effects of marine-sourced microplastics as additives in bituminous binders used for road asphalt pavements, finding that incorporating marine microplastics into bitumen improved mechanical road performance while simultaneously providing a recycling pathway for plastic waste collected from marine environments.
A systematic review on sustainable utilization of plastic waste in asphalt: assessing environmental and health impact, performance, and economic viability
Researchers systematically reviewed plastic-modified asphalt, finding that while recycled plastic waste can improve road performance in some cases, it also poses environmental health risks through microplastic release, carcinogenic compound emissions, and volatile organic compound off-gassing, with cost-effectiveness varying widely by plastic type and processing method.
Investigating the Potential Release of Microplastics from Recycled Plastic Modified Asphalt Pavement
Researchers investigated whether microplastics are released from recycled plastic-modified asphalt pavement, examining the potential for road surfaces incorporating plastic waste to become a secondary source of microplastic pollution in surrounding environments.
Exploring the effect on the environment of encapsulated micro- and nano-plastics into asphalt mastics for road pavement.
This study tested whether encapsulating waste plastic material into asphalt for road pavement reduces environmental release of micro- and nanoplastics compared to conventional asphalt. The results suggest that this approach can reduce plastic fragment release into the environment while providing a practical use for plastic waste in road infrastructure.
Incorporating Waste Plastics into Pavement Materials: A Review of Opportunities, Risks, Environmental Implications, and Monitoring Strategies
This review examines the opportunities and risks of incorporating waste plastics into pavement construction materials, critically assessing performance benefits, environmental implications including microplastic release, and future directions for sustainable integration of plastic waste in road infrastructure.
Recycled Plastics in Asphalt Mixtures: A Systematic Review of Mechanical Performance, Environmental Impact and Practical Implementation
This systematic review evaluates using recycled plastics in road asphalt as a way to reduce plastic waste. The research found that incorporating recycled plastic can actually improve road durability while diverting waste from landfills. This approach matters for microplastic reduction because it locks plastic into road surfaces rather than allowing it to break down freely in the environment.
The Use of Waste Polymers in Asphalt Mixtures: Bibliometric Analysis and Systematic Review
This systematic review examines how waste plastics can be recycled into asphalt road mixtures, potentially reducing plastic waste in the environment. Researchers found that adding polymer waste to asphalt can actually improve road durability while diverting plastics from landfills and waterways. This matters because reducing plastic waste at the source is one way to lower the amount of microplastics that eventually break down and enter our food and water.
Recycling micro polypropylene in modified hot asphalt mixture
This study incorporated recycled polypropylene microplastics into hot asphalt mixtures and evaluated the resulting performance, finding that small additions of plastic waste can improve certain mechanical properties of asphalt while offering a pathway to reuse plastic waste in road construction.
Microplastics Generated from Recycled Plastic Modified Asphalt Pavement: Method Development and Laboratory Evaluation
This study developed laboratory methods to measure how much microplastic is shed by asphalt pavement made with recycled plastic, filling an important knowledge gap as recycled-plastic roads are promoted as a sustainability solution. The research raises the concern that pavements incorporating waste plastic could become a previously unrecognized source of microplastic pollution over their service life.
Engineering properties, microplastics and emissions assessment of recycled plastic modified asphalt mixtures
Researchers evaluated the mechanical performance and environmental impact of adding recycled low-density polyethylene and commingled plastics to hot-mix asphalt, finding reduced moisture resistance but also assessing microplastic release and emissions from these recycled plastic-modified road materials.
Performance and environmental impacts of waste plastic-modified asphalt pavement: a comprehensive review
This review examined recent research on using waste plastic to modify asphalt pavement and found that it generally improves road durability while reducing harmful emissions during production. However, challenges remain around plastic-bitumen compatibility and potential microplastic release during the pavement's lifetime, and the authors call for more standardized environmental assessments to ensure the approach is truly sustainable.
Investigation of the rheological properties of low-density polyethylene (LDPE) modified bitumens using two plastic wastes
Researchers modified road bitumen with low-density polyethylene (LDPE) plastic waste to improve its performance characteristics. The LDPE-modified bitumen showed improved rheological properties, demonstrating a practical use for plastic waste in road construction that could divert it from landfills and waterways.
A Comprehensive Review of Applications and Environmental Risks of Waste Plastics in Asphalt Pavements
This comprehensive review examined the use of waste plastics (PE, PP, PS, PVC, PET) as asphalt modifiers, covering modification mechanisms, incorporation techniques (wet and dry processes), and environmental risks. While waste-plastic asphalt can improve high-temperature stability and reduce landfill disposal, microplastic shedding from pavement wear remains an unresolved environmental hazard.
Evaluation of Properties and Mechanisms of Waste Plastic/Rubber-Modified Asphalt
This engineering study investigated using a mixture of waste polyethylene plastic and recycled rubber tire material to modify road asphalt, improving its performance while diverting waste from landfills. The modified asphalt showed improved resistance to rutting and cracking. While not directly about microplastic health risks, using waste plastics in road construction could reduce the amount available to fragment into environmental microplastics.
Sustainable Polymers from Recycled Waste Plastics and Their Virgin Counterparts as Bitumen Modifiers: A Comprehensive Review
This review comprehensively examined the use of both recycled waste plastics and virgin polymers as bitumen modifiers for road pavements, evaluating how different polymer types improve pavement performance and service life.
Recycling/reuse of plastic waste as construction material for sustainable development: a review
Researchers reviewed how waste plastic can be incorporated into construction materials — as binders, aggregates, or cement substitutes in bricks, tiles, concrete, and roads — finding that plastic-modified materials often show competitive strength properties while simultaneously diverting plastic waste from landfills.
Plastic-Waste-Modified Asphalt for Sustainable Road Infrastructure: A Comprehensive Review
This review provides a comprehensive analysis of using waste plastics to modify asphalt for road construction, covering six major plastic types and both wet and dry processing methods. The study evaluated 42 peer-reviewed studies and found that integrating waste plastics into asphalt can enhance pavement performance while promoting circular economy principles, though environmental considerations such as microplastic release need further assessment.
Second Life for Plastic Fibre Waste Difficult to Recover: Partial Replacement of the Binder in Asphalt Concrete Mixtures by Dry Incorporation
Researchers found that incorporating waste plastic fibers from municipal solid waste into asphalt concrete as a partial bitumen replacement improved resistance to plastic deformation and mechanical performance, with results approaching those of polymer-modified bitumen mixtures while improving material sustainability.
Experimental Tests on Lightweight Cement Mortar and Concrete with Recycled Plastic Wastes
This paper is not relevant to microplastics research — it tests the mechanical properties of cement mortar and concrete incorporating recycled plastic waste granules as aggregate substitutes, a construction materials engineering study.
Recent Advances in Polymer-Modified and Plastic-Reinforced Asphalt: A Comprehensive Review of Performance, Rheology, and Sustainability
Researchers reviewed recent developments in polymer-modified and plastic-reinforced asphalt systems, synthesising findings on performance enhancement, rheological behaviour, and sustainability implications of incorporating recycled plastics and polymer modifiers into asphalt binders and mixtures.
Use of Waste Plastic as a Replacement for Bitumen in Road Construction
This review examines methods for incorporating waste plastic into road construction as an alternative to virgin bitumen and aggregates. Techniques like plastic-coated aggregates and plastic-modified bitumen improved road durability and weather resistance while diverting plastic from landfills. The approach offers a dual benefit of reducing plastic waste accumulation and decreasing the environmental impact of road construction.
Evaluating Effectiveness of Multi-Component Waste Plastic Bags on Bitumen Properties: Physical, Rheological, and Aging
Researchers characterized waste plastic bag samples dominated by low-density and linear low-density polyethylene and tested their performance as bitumen modifiers, finding they improved rutting resistance by one performance grade. The study evaluates a practical route for valorizing plastic waste in road construction materials.
Waste Plastic in Asphalt Mixtures via the Dry Method: A Bibliometric Analysis
This bibliometric analysis reviews two decades of research on incorporating waste plastic into asphalt road mixtures using the dry method. The study found that polyethylene and PET are the most commonly used waste plastics, and that smaller particle sizes and melting-based mixing procedures generally improve the performance of the resulting asphalt, pointing to a practical reuse pathway for plastic waste.
Evaluation of eco-friendly asphalt mixtures incorporating waste plastic aggregates and additives: Magnesium, fly ash, and steel slag
Researchers tested adding waste plastic aggregate (WPA) to asphalt road mixtures at various concentrations, finding that 5% WPA content performs well and meets durability standards while also potentially reducing microplastic generation compared to exposed surface-layer applications. The study suggests recycled plastic can be practically incorporated into road construction to divert plastic waste from landfills.