Utilisation of plastic waste as aggregate in construction materials: A review

Zulkernain, Nur Hanis; Gani, Paran; Chuan, Ng Chuck; Uvarajan, Turkeswari

doi:10.1016/j.conbuildmat.2021.123669

Cited by 84 publications

(15 citation statements)

References 122 publications

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“…The study by Li et al, in addition to other investigations, provides alternatives for reusing ABS waste to manufacture high value-added products, which represents a promising way of recycling waste and mitigating environmental problems with inadequate disposal [277,278]. Zulkernain et al (2021) [279] also investigated the use of plastic waste applied in the civil construction sector. The authors investigated the use of plastic as an aggregate in terms of physical, mechanical and durability properties of construction materials, as well as environmental and cost analysis.…”

Section: Polymeric Composites For Waste Recoverymentioning

confidence: 99%

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

et al. 2021

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Plastics are ubiquitous in our society and are used in many industries, such as packaging, electronics, the automotive industry, and medical and health sectors, and plastic waste is among the types of waste of higher environmental concern. The increase in the amount of plastic waste produced daily has increased environmental problems, such as pollution by micro-plastics, contamination of the food chain, biodiversity degradation and economic losses. The selective and efficient conversion of plastic waste for applications in environmental remediation, such as by obtaining composites, is a strategy of the scientific community for the recovery of plastic waste. The development of polymeric supports for efficient, sustainable, and low-cost heterogeneous catalysts for the treatment of organic/inorganic contaminants is highly desirable yet still a great challenge; this will be the main focus of this work. Common commercial polymers, like polystyrene, polypropylene, polyethylene therephthalate, polyethylene and polyvinyl chloride, are addressed herein, as are their main physicochemical properties, such as molecular mass, degree of crystallinity and others. Additionally, we discuss the environmental and health risks of plastic debris and the main recycling technologies as well as their issues and environmental impact. The use of nanomaterials raises concerns about toxicity and reinforces the need to apply supports; this means that the recycling of plastics in this way may tackle two issues. Finally, we dissert about the advances in turning plastic waste into support for nanocatalysts for environmental remediation, mainly metal and metal oxide nanoparticles.

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Section: Polymeric Composites For Waste Recoverymentioning

confidence: 99%

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

et al. 2021

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“…Por esto el reciclado de los plásticos es hoy un sector económico consolidado desde su introducción en el mercado. Las ventajas del reciclado del plástico como resistencia a la degradación y bajo costo con respecto a otros materiales, las cuales han sido cuestionadas por su impacto ambiental (Zulkernain et al, 2021).…”

Section: Introductionunclassified

Prototipo de adoquines a base de PET reciclado

Miguel¹,

Cuellar²,

Santos³

2022

S. F. J. of Dev.

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En este trabajo se presenta el diseño y elaboración de adoquines a base de PET (Polietileno Tereftalato) reciclado (RPET). El proyecto se divide en cuatro etapas, la primera etapa es el modelado utilizando el programa de diseño Solidworks®, se realizaron varias simulaciones hasta obtener el modelo definitivo, se aplicó la herramienta de Cosmos Express para el análisis de cargas y esfuerzos a los cuales estaría sometido; la segunda etapa es el maquinado del molde de inyección en aluminio; la tercera etapa, con la ayuda de maquinaria especializada se elaboraron muestras de los adoquines utilizando PET reciclado, colorantes y aditivos que permitieran que este polímero recuperara propiedades mecánicas que son indispensables para su adecuado desempeño; y en la última etapa se hicieron pruebas para validar sus propiedades mecánicas. Al adoquín de RPET se le realizó una prueba de compresión en un tiempo de 80.71 segundos soportando una carga de 49,987.5 Newtons y compresión máxima de 5.379 mm. Obteniendo un producto que es amigable con el medio ambiente y coadyuva a disminuir la contaminación.

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“…Regardless, experiential findings on the replacement of either fine or coarse aggregate in concrete by 5-40% using plastic waste in the construction industry, has produced progressive and encouraging findings as evidenced in studies such as Almeshal et al [27], Mohammad et al [28], and Safi et al [29]. For analysing the performance of waste plastic-based concrete as well as their durability, the researchers primarily determined physical and mechanical properties like fresh and dry density, workability, compressive strength, flexural strength, and split tensile strength [30][31][32]. The thermal and acoustic insulation qualities of concrete made from waste plastic were also mentioned in a relatively small number of studies [33][34][35][36].…”

Section: Introduction 1backgroundmentioning

confidence: 99%

Sustainability Performance of Voided Concrete Slab Using Waste Plastic Bottles

Dadzie

Kaliluthin

2022

Civ Eng J

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The present study is aimed at investigating the cost assessment of incorporating waste plastic bottles in the manufacture of voided concrete slabs; assessing the depth ratio vis-à-vis the cost reduction of incorporating waste plastic bottles in the manufacture of voided concrete slabs; assessing the energy consumption and CO2 emission obtained by incorporating waste plastic bottles in the manufacture of voided concrete slabs; and evaluating the impact of the depth ratio on embodied energy consumption and CO2 emission. The study was conducted on five types of slab specimens made: (1) conventional solid slab specimens; (2) slab specimens incorporated with 5% air-filled plastic bottles; and (3) slab specimens incorporated with 10% air-filled plastic bottles. Slab specimens of size 1000×1000×150 mm thick incorporated with 0, 5, and 10% waste plastic bottles were considered for the analysis of sustainability with respect to cost, energy, and CO2 savings. As part of the findings, it was revealed that the incorporation of waste plastic bottles into concrete slabs results in a reduction in the cost and volume of concrete. Again, using recycled plastic bottles in the slabs saved money, but for each percentage of bottles used, additional materials (plastic bottles, chicken wire, etc.) and labour were needed, which added to the cost. It was also revealed that embodied energy and CO2 emissions decrease as the percentage of plastic bottles in the slab increases. The study has confirmed that the void slab made with plastic bottles is more sustainable than the traditional solid slab system when it comes to cost, energy use, and CO2emissions. Doi: 10.28991/CEJ-2022-08-11-09 Full Text: PDF

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Utilisation of plastic waste as aggregate in construction materials: A review

Cited by 84 publications

References 122 publications

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

Conversion of Plastic Waste into Supports for Nanostructured Heterogeneous Catalysts: Application in Environmental Remediation

Prototipo de adoquines a base de PET reciclado

Sustainability Performance of Voided Concrete Slab Using Waste Plastic Bottles

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