Papers

61,005 results
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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

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

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

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

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

Utilizing Polyethylene Terephthalate (PET) In Insulation Fired Clay Bricks

Researchers investigated substituting polystyrene with recycled PET from drinking water bottles in fired clay brick manufacturing, testing up to 25% inclusion levels. They found that 20% crushed PET by weight produced bricks meeting ASTM C155-97 standards for thermal insulation and mechanical properties.

2024 International Journal of Scientific Research and Management (IJSRM)
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

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

Utilization of Plastic Waste for Developing Composite Bricks and Enhancing Mechanical Properties: A Review on Challenges and Opportunities

This review of research on plastic waste composite bricks found that PET has the highest recycling efficiency among plastics used for brick production and highlights the need for standardized specifications, contamination assessments, and policy frameworks to promote wider adoption.

2023 Advances in Polymer Technology 21 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

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
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

Sustainable geopolymers from polyethylene terephthalate waste and industrial by-products: a comprehensive characterisation and performance predictions

Researchers developed geopolymer bricks using recycled PET plastic waste combined with industrial by-products like rice husk ash and blast furnace slag. They found that certain formulations produced bricks with strength and durability comparable to conventional building materials. The study demonstrates a practical approach for diverting plastic waste from landfills while creating sustainable construction materials.

2024 Journal of Materials Science 31 citations
Article Tier 2

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.

2023 Buildings 6 citations
Article Tier 2

Recycled Mixed Plastic Fine Aggregate in Cement Concrete

Cement concrete mixtures incorporating mixed post-consumer recycled plastic as fine aggregate were characterized, finding that an optimized blend of polymer types produced workable concrete with mechanical properties suitable for construction applications.

2024 Springer Proceedings in Materials
Article Tier 2

Investigating the Viability of Recycling Rice Husk Ash and Plastic Bag Waste to Enhance Durability of Lightweight Concrete

Researchers investigated using recycled rice husk ash and plastic bag waste to enhance durability of lightweight concrete, finding that these waste materials improved certain mechanical and durability properties while reducing environmental impact of construction.

2023 Buildings 6 citations
Article Tier 2

Laboratory Study of Physical and Thermal Properties of Concrete Mixed with Bakelite

This laboratory study tested the physical and thermal properties of concrete blocks made by partially replacing aggregate with Bakelite plastic waste. The research aims to find useful applications for waste plastic in construction materials, which could divert plastic from landfills and reduce environmental contamination.

2023 International Journal of Geomate 2 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

The Utilizing of Recycled Plastic Waste as an Alternative for Zero Cement Paving Blocks

This study tested the compressive strength and water absorption of paving blocks made entirely from recycled plastic waste without cement. Using plastic waste in construction materials offers a way to permanently remove plastic from the environment while meeting the growing need for durable urban infrastructure.

2023 Jurnal Teknik Sipil 1 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

Environmental Protection Through the Management of SBR and PET Waste in the Innovative Concrete Building Block APS

Researchers developed an innovative hollow concrete block (APS) incorporating recycled SBR rubber granules and PET plastic flakes, demonstrating that the design provides effective waste management for these materials while maintaining structural suitability for foundation and retaining wall construction.

2025 Archives of Metallurgy and Materials
Article Tier 2

Assessment of Plastic-Infused Concrete Bricks and Their Suitability for Interlocking: Mechanical, Durability, and Environmental Perspectives

Researchers tested plastic-infused concrete bricks as a way to repurpose plastic waste in construction materials, evaluating their mechanical strength and suitability for different building applications. The study explores whether incorporating plastic waste into durable materials can reduce the plastic entering the environment as microplastics.

2025 European Journal of Innovative Studies and Sustainability 1 citations
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

Feasibility Study of the Use of Concrete Blocks Produced From Plastic Marine Garbage for Use in Civil Construction

Researchers investigated the feasibility of producing concrete blocks incorporating plastic waste collected from marine and coastal environments, testing blocks with varying proportions of recycled plastic as a partial aggregate replacement in civil construction applications. The study assessed the mechanical and physical properties of the resulting composite blocks, evaluating whether marine plastic garbage could be valorized as a construction material while reducing environmental plastic loads.

2022