Papers

61,005 results
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Article Tier 2

On the Cementitious Mixtures Reinforced with Waste Polyethylene Terephthalate

Researchers investigated the reuse of waste polyethylene terephthalate plastic as aggregate material in cement mortars and concretes. They found that incorporating PET waste into cementitious mixtures can be a viable strategy for recycling plastic while also reducing CO2 emissions from traditional aggregate mining. The study suggests that closing the life cycle of PET through construction materials could help address both plastic pollution and the environmental footprint of the building industry.

2024 Materials 12 citations
Article Tier 2

Utilization of plastic waste as replacement of natural aggregates in sustainable concrete: effects on mechanical and durability properties

Researchers tested concrete made with recycled polyethylene and PET plastic aggregates substituted for natural sand and gravel, finding that while plastic additions reduced compressive strength and increased water permeability, they improved impact resistance and chloride resistance, with PET concrete showing no microplastic leaching.

2023 International Journal of Environmental Science and Technology 66 citations
Article Tier 2

The Impact of Recycled Polyethylene Terephthalate as Aggregate Replacement on Mechanical and Ecotoxicological Properties of Mortar

Researchers tested mortar made with recycled PET plastic replacing some of the natural aggregate and found that it maintained comparable compressive strength while passing ecotoxicity tests with plants. The study suggests that incorporating recycled plastic waste into construction materials could be a viable way to reduce plastic in landfills without creating significant environmental harm.

2025 Recycling 3 citations
Article Tier 2

Potential use of PET and PP as partial replacement of sand in structural concrete

Researchers tested whether PET and polypropylene plastic waste could partially replace sand in structural concrete, evaluating the physical and mechanical properties of the resulting material. Using post-consumer plastic in construction is one strategy for diverting plastic from the waste stream and preventing it from breaking down into environmental microplastics.

2021 Matéria (Rio de Janeiro) 5 citations
Article Tier 2

Environmental and Cost Advantages of Using Polyethylene Terephthalate Fibre Reinforced Concrete with Fly Ash as a Partial Cement Replacement

This study examined the environmental and cost benefits of using recycled PET plastic bottles as fiber reinforcement in concrete, combined with fly ash as a partial cement replacement. Repurposing plastic waste in construction materials could help reduce the volume of plastic entering the environment as microplastics.

2019 Open Journal of Civil Engineering 6 citations
Article Tier 2

A brief review on polyvinyl chloride plastic as aggregate for construction materials

Researchers reviewed three decades of studies on using recycled PVC plastic waste as an aggregate in concrete and cement, examining how particle size, surface treatment, and mixing ratio affect the strength and durability of the resulting material. The review identifies practical strategies for incorporating PVC waste into construction, reducing plastic pollution while supporting sustainable building.

2023 Journal of Engineering and Applied Science 10 citations
Article Tier 2

A Step towards Sustainable Concrete with Substitution of Plastic Waste in Concrete: Overview on Mechanical, Durability and Microstructure Analysis

This review evaluates the use of plastic waste as a substitute material in concrete, analyzing its effects on mechanical strength, durability, and microstructure to assess its viability as a sustainable construction approach.

2022 Crystals 174 citations
Systematic Review Tier 1

Systematic Review of Plastic Waste as Eco-Friendly Aggregate for Sustainable Construction

This systematic review examines how recycled plastic waste can be used as a substitute for traditional aggregates in concrete and construction materials. Using plastic waste in construction could divert it from landfills and waterways where it breaks down into microplastics. The review evaluates the structural performance and environmental benefits of incorporating plastic into building materials.

2022 International Journal of Sustainable Construction Engineering Technology 18 citations
Article Tier 2

Utilization of Plastic Waste in Concrete Pavement

Researchers investigated the use of recycled high-density polyethylene (HDPE) plastic waste as an aggregate in concrete pavement mix designs, finding that incorporation of HDPE improved mechanical performance and durability while reducing landfill waste and energy consumption in the concrete sector.

2025 Processes
Article Tier 2

Assessment of Concrete Hollow Blocks Incorporating Polyethylene Terephthalate (PRT) and Copper Slag as a Commercial Concrete Alternative

Researchers assessed the structural performance of concrete hollow blocks incorporating polyethylene terephthalate (PET) waste and copper slag as partial replacements for conventional materials, evaluating durability and sustainability metrics. The study demonstrates that PET-inclusive concrete composites can meet performance standards while diverting plastic waste from landfills.

2024
Article Tier 2

Eco-friendly Concrete Using Waste Plastic Bottles as Aggregate: A Case Study from Oman

This Omani study tested concrete made with waste plastic PET bottles as a partial replacement for fine aggregate. Adding recycled plastic to concrete is a promising strategy to divert plastic waste from the environment, and the study found acceptable mechanical performance for non-structural applications.

2023 International conference on civil infrastructure and construction/Proceedings of the ... International conference on civil infrastructure and construction 2 citations
Article Tier 2

The Effect of 0.8% Polyethylene Terephthalate Plastic Waste Substitution on the Flexural Strength on K-175 Concrete

Researchers investigated substituting 0.8% polyethylene terephthalate plastic fiber waste as a partial replacement for fine aggregate in concrete, finding that PET-modified concrete achieved a 4.32% higher flexural strength compared to standard K-175 concrete.

2024 E3S Web of Conferences
Article Tier 2

Evaluating the structural performance of waste PET-infused interlocking units versus traditional stone masonry

This study is not directly about microplastics — it evaluates the compressive strength and water absorption of interlocking bricks made from waste PET plastic as a partial cement replacement in construction.

2024 Engineering and Technology Journal 2 citations
Article Tier 2

Integrating Plastic Waste into Concrete: Sustainable Solutions for the Environment

This review examines research on incorporating plastic waste into concrete as a partial replacement for conventional aggregates and cement. Researchers found that adding recycled plastic can reduce concrete density and improve thermal insulation properties, though it generally decreases compressive strength at higher replacement ratios. The study suggests that optimizing plastic content and treatment methods could make this approach a viable strategy for diverting plastic waste from landfills.

2024 Materials 15 citations
Article Tier 2

Strength Characteristics of Alkali-Activated Slag Mortars with the Addition of PET Flakes

Researchers investigated incorporating PET plastic flakes into alkali-activated slag mortars as an alternative to Portland cement, finding that PET additions affected mechanical strength in ways that depend on flake content. This approach offers a potential use for waste PET plastic while reducing cement production emissions.

2021 Materials 5 citations
Article Tier 2

Performance of recycled Bakelite plastic waste as eco-friendly aggregate in the concrete beams

Researchers tested concrete mixtures containing recycled Bakelite plastic waste as a partial substitute for stone aggregate, finding that adding up to 10% Bakelite generally reduced strength but prevented sudden cracking during failure. While this offers a way to divert hard-to-recycle plastic from landfills — where it would otherwise slowly break down into microplastics — the strength trade-offs must be carefully managed in structural applications.

2023 Case Studies in Construction Materials 26 citations
Article Tier 2

A critical review of the current progress of plastic waste recycling technology in structural materials

Researchers reviewed technologies for recycling plastic waste into construction materials such as concrete and asphalt, finding this approach can meaningfully reduce the environmental burden of plastic pollution. Incorporating plastic waste into building materials offers a practical path toward both waste reduction and more sustainable construction.

2023 Current Opinion in Green and Sustainable Chemistry 210 citations
Article Tier 2

Database Study on the Sustainability Assessment of Plastic Waste Utilization in Concrete: Towards the Development of Sustainable Waste Management Route

Researchers compiled a database of 635 data points from the literature on concrete incorporating polypropylene and polyethylene terephthalate waste plastics, finding that plastic substitution — especially when combined with pozzolanic materials — can substantially reduce global warming potential and other environmental impact indices.

2023 OpenMETU (Middle East Technical University)
Article Tier 2

Repurposing Single-Use Plastic Waste as Artificial Aggregates Partially Replacing the Natural Fine Aggregate in Concrete — A Review

This review examines how single-use plastic waste can be repurposed as aggregate material in concrete mixtures, replacing natural sand. Analyzing 135 studies, it finds that recycled plastic aggregates can affect concrete mechanical properties while diverting plastic waste from landfills and oceans.

2023 Materials Plus 1 citations
Review Tier 2

Potential Applications of Different Forms of Recycled Plastics as Construction Materials—A Review

This review examined potential applications of different forms of recycled plastics (granules, powder, fiber, aggregate) as construction materials, identifying suitable recycling methodologies and construction products with performance benefits such as improved toughness and reduced weight.

2023 4 citations
Article Tier 2

Pervious Pavement Blocks Made from Recycled Polyethylene Terephthalate (PET): Fabrication and Engineering Properties

Researchers developed and tested pervious pavement blocks made from recycled PET plastic waste, finding they met engineering standards for strength and permeability. The study offers a dual benefit: diverting plastic waste from landfills while creating functional construction materials that help manage urban stormwater.

2020 Sustainability 14 citations
Article Tier 2

Polyethylene Terephthalate Waste Utilisation for Production of Low Thermal Conductivity Cement Sand Bricks

This engineering study tested whether shredded PET plastic waste could partially replace sand in cement bricks, finding it reduced the bricks' thermal conductivity while maintaining acceptable strength. Incorporating plastic waste into construction materials could divert it from landfills while reducing building energy costs. This paper focuses on construction materials and is not directly related to microplastic health risks.

2021 ARTS Bulletin : 22 citations
Article Tier 2

Pemanfaatan Limbah Plastik PET (Polyethylene Terephthalate) dalam Pembuatan Bata Ringan CLC (Cellular Lightweight Concrete): Studi Eksperimental

Researchers investigated the use of PET plastic waste as a partial substitute for fine aggregates in the production of cellular lightweight concrete (CLC) bricks. The experimental study analyzed the effects of PET substitution on mechanical and physical properties including compressive strength, density, and water absorption.

2025 Syntax Literate Jurnal Ilmiah Indonesia
Article Tier 2

Review- Using Ground Bakelite as Alternative Solution for the Replacement of Fine Aggregate

This paper is not relevant to microplastics research — it evaluates ground Bakelite waste as a partial replacement for fine aggregate in concrete construction, focusing on materials engineering rather than plastic particle pollution in the environment.

2023 International Journal for Research in Applied Science and Engineering Technology