The DOI matches its Crossref record; 35 of the 35 references it cites were found in a registry or an index.
Paving roads with recycled plastics: Microplastic pollution or eco-friendly solution?
Abstract
Although plastic-modified roads are a promising approach to reducing the amount of landfilled and incinerated plastic and improving asphalt pavement performance, the contribution of plastic-modified roads to microplastic pollution is unknown. This study aimed to develop a new abrasion procedure to quantify the release of microplastics from recycled plastic-modified asphalt depending on environmental factors, the type and content of plastic used, and the incorporation method in bitumen/asphalt. A Wet Track Abrasion machine was used to simulate road traffic abrasion on a plastic-modified asphalt sample, and a novel microplastic extraction procedure was designed to extract the generated microplastics. Incorporating recycled plastic as a polymer modifier in the bitumen matrix resulted in an early release of microplastics compared to its addition as a synthetic aggregate substitute in the asphalt mix. Cold temperatures and low pH values favoured the generation of microplastics from plastic-modified asphalt. Due to the lack of universal thresholds for the release of microplastics into the environment, environmental agencies and local authorities could benefit from this novel laboratory-based microplastic assessment procedure to foster the sustainable use of recycled plastic in roads.
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“The environmental impact due to degradation: The composites may contribute to long-term environmental pollution if not properly managed at the end of their life cycle, as they may degrade slowly in natural environments and release both additives (e.g., plasticizers, stabilizers) and microplastics.”
From Transforming Plastic Waste into Value: A Review of Management Strategies and Innovative Applications in Sustainable Construction (2025) · cites this paper as [130]
In the citing paper
“Pavements and other materials undergo mechanical abrasion, leading to the release of microplastics even before they start to degrade [130].”
From Transforming Plastic Waste into Value: A Review of Management Strategies and Innovative Applications in Sustainable Construction (2025) · cites this paper as [130]
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Self-citation
Metadata
- Authors
- Enfrin, M., Myszka, R., & Giustozzi, F.
- Affiliations
- RMIT University (AU)
- Corresponding author
- Enfrin, Marie
- Venue
- Journal of Hazardous Materials
- Publisher
- Elsevier BV
- Published
- 2022-09
- Volume
- 437
- Pages
- 129334
- ISSN
- 0304-3894 (ISSN-L)
- OpenAlex
- W4281943516
- Cited by
- 87
- References
- 35
- Citations by year
- 2026: 16 · 2025: 24 · 2024: 23 · 2023: 22 · 2022: 2
- FWCI
- 4.22
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- Locations
- Journal of Hazardous Materials (publishedVersion)
- PubMed (publishedVersion)
- RMIT Research Repository (RMIT University Library) (submittedVersion)
- Figshare (submittedVersion)
- Topics
- Physical Sciences › Environmental Science › Pollution › Microplastics and Plastic Pollution
- Physical Sciences › Engineering › Civil and Structural Engineering › Asphalt Pavement Performance Evaluation
- Physical Sciences › Environmental Science › Pollution › Pharmaceutical and Antibiotic Environmental Impacts
- Keywords
- plastic-modified asphalt, recycled plastics, microplastic pollution, microplastic release, abrasion testing, microplastic extraction, bitumen, temperature effects, pH effect, road pavements, plastic recycling
- MeSH terms
- Microplastics, Environmental Pollution, Plastics, Recycling
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