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61,005 resultsShowing papers similar to Plastic-Waste-Modified Asphalt for Sustainable Road Infrastructure: A Comprehensive Review
ClearPerformance 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.
A Comprehensive Review on the Use of Polyethylene Waste in Hot Mix Asphalt: Material Properties, Performance Enhancement, and Sustainability Perspectives
This review examines the use of low-density and high-density polyethylene waste as modifiers in hot mix asphalt, finding that PE incorporation can improve binder performance and pavement durability while diverting plastic waste from landfills. The authors assess material properties, environmental benefits, and economic considerations, positioning plastic-modified asphalt as a viable circular economy approach in road construction.
Recent advances in the construction of sustainable asphalt roads with recycled plastic
This review examines the growing use of recycled plastics in road asphalt, tracing the practice back to the 1980s and identifying key challenges around performance, durability, and the risk of microplastic release from plastic-modified road surfaces. The authors conclude that while promising for waste reduction, more research is needed on long-term environmental impacts.
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.
Waste Plastic in Road Construction, Pathway to a Sustainable Circular Economy: A Review
This review examines existing literature on incorporating waste plastic into road construction, finding that its inclusion can improve pavement performance and durability while offering a pathway to divert non-biodegradable plastic from landfills.
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.
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.
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.
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.
Recent Advances in Polymer-Modified and Plastic-Reinforced Asphalt: A Comprehensive Review of Performance, Rheology, and Sustainability
This review examines recent advances in polymer-modified and plastic-reinforced asphalt, evaluating how elastomeric modifiers, plastomeric modifiers, and recycled plastic integration affect pavement performance, rheological properties, and environmental sustainability across studies published from 2020 to 2025.
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.
Recent Advances in Polymer-Modified and Plastic-Reinforced Asphalt: A Comprehensive Review of Performance, Rheology, and Sustainability
This review consolidates advances from 2020-2025 in polymer-modified asphalt systems — covering elastomeric and plastomeric modifiers, recycled plastic incorporation, rheological characterisation, and environmental implications — to evaluate how plastic reinforcement of asphalt can improve pavement durability while supporting sustainability goals.
Life Cycle Assessment of Road Pavements That Incorporate Waste Reuse: A Systematic Review and Guidelines Proposal
This systematic review examines life cycle assessments of roads built with recycled waste materials, including plastic. The research evaluates whether incorporating waste into road construction is truly more environmentally sustainable across the full life cycle. Using plastic waste in road building is one approach to keeping it out of the environment, though concerns remain about microplastic release from road surfaces over time.
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.
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.
Optimization of Asphalt Concrete Performance Using Waste Plastic Bottles (WPB) as a Sustainable Bitumen Modifier: A Comprehensive Rheological and Mechanical Assessment
Not relevant to microplastics — this study evaluates waste plastic bottles as a bitumen modifier to improve asphalt road performance, testing mechanical and thermal properties; it addresses plastic reuse in construction rather than environmental microplastic pollution.
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.
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.
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.
Developing Sustainable Asphalt Mixtures Using High-Density Polyethylene Plastic Waste Material
Researchers evaluated asphalt mixtures incorporating high-density polyethylene (HDPE) plastic waste as a sustainable road pavement material, assessing whether recycled plastic can improve or maintain pavement performance while addressing plastic waste disposal.
Influence of Plastic Waste on the Workability and Mechanical Behaviour of Asphalt Concrete
Researchers found that incorporating plastic waste into asphalt concrete using a dry process improved selected mechanical properties including stiffness and fatigue resistance in some formulations while maintaining acceptable workability, supporting plastic waste as a viable bitumen extender for road construction.
Recycling waste plastics in roads: A life-cycle assessment study using primary data
Researchers conducted a life cycle assessment using primary data from Australian recycling facilities to compare waste plastic use as a bitumen additive versus aggregate replacement in asphalt roads, finding that both recycling approaches generally offer environmental benefits over virgin materials — supporting recycled plastic roads as a potentially sustainable waste management strategy.
Waste Plastic to Roads – HDPE-modified Bitumen and PET Plastic Fibres for Road Maintenance in South Africa: A Review
This study evaluated waste plastic incorporation into road materials, testing HDPE-modified bitumen and PET plastic fibers as road material additives and assessing mechanical performance and durability compared to conventional asphalt.
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.