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61,005 resultsShowing papers similar to Microscopic Properties of Asphalt and Polyethylene at an Extraordinary High Dosage through Molecular Dynamics Simulation
ClearCompatibility investigation of waste plastics in bitumen via a molecular dynamics method
Researchers used molecular dynamics simulations to assess how well waste plastics — PVC, polypropylene, and polyethylene — mix with bitumen at different temperatures, finding PVC and PP were most compatible at higher temperatures and that compatibility ranked PVC > PE > PP.
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.
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.
Performance Study of Waste PE-Modified High-Grade Asphalt
This study tests how adding waste polyethylene plastic to road asphalt affects its performance, finding that a 5% blend significantly improves resistance to heat-related deformation while slightly worsening cold-temperature flexibility. While focused on road engineering, the research is relevant to microplastics because plastic-modified asphalt can release polyethylene particles through wear, contributing to road-related microplastic pollution.
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.
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.
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.
Study on recycled LLDPE modified asphalt using fluorescence microscopy and entropy-weight evaluation for process selection
Recycled linear low-density polyethylene (LLDPE) from agricultural mulch films was used as a modifier in asphalt, with fluorescence microscopy and entropy-weight evaluation used to optimize the incorporation process, offering a road construction approach that both recycles plastic waste and reduces microplastic release into soil.
Performance of Asphalt Concrete Pavement Reinforced with High-Density Polyethylene Plastic Waste
Researchers found that incorporating high-density polyethylene plastic waste into asphalt concrete at 5% by aggregate weight produced the best performance, improving resilient modulus, fatigue resistance, and pavement lifespan while saving 67.85 kg CO2-equivalent per cubic meter compared to conventional pavement.
Durability and Aging Characteristics of Sustainable Paving Mixture
Researchers incorporated shredded low-density polyethylene plastic waste into asphalt paving mixtures, testing the durability and aging characteristics of the resulting material. Reusing waste plastic in road construction is one approach to reducing the plastic that otherwise enters the environment and breaks down into microplastics.
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.
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.
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.
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.
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.
Exploring the low-temperature performance of MPP-modified asphalt binders and mixtures using wet method
This paper is not about microplastic pollution; it tests multilayer plastic packaging (MPP) as a modifier in road asphalt binders, finding that amounts above 2% worsen cold-temperature performance.
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.
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.
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.
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.
Assessing the Performance of Melted Plastic as a Replacement for Sand in Paving Block
Researchers evaluated melted low-density polyethylene plastic waste as a substitute bonding agent for sand in paving blocks, testing compressive strength, water absorption, and wear resistance across varying plastic content ratios. Results showed that paving blocks with 10% melted LDPE met required performance standards, offering a potential pathway for incorporating plastic waste into construction materials.
Reusing Waste Food-packaging Plastic as Additive Modifier in Asphalt Mixtures
This study investigates reusing plastic waste from food and drink packaging, recovered through a maceration process, as an additive modifier in asphalt road mixtures. The approach aims to address the challenge of recycling plastic that cannot be processed through conventional paper and aluminum recovery streams.