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A sustainable approach to geopolymer concrete utilizing waste materials including plastic waste
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This review examined the use of various supplementary cementitious materials including fly ash, silica fume, rice husk ash, and plastic waste in geopolymer concrete as a lower-carbon alternative to Portland cement. The study assessed how different additive combinations and mix proportions affect fresh and hardened geopolymer concrete properties.
The purpose of this study is to focus Geopolymer concrete may replace Portland cement-based concrete due to its lower carbon footprint and longer lifespan. This review discusses adding ground granulated blast furnace slag(GGBFS), fly ash, silica fume, rice husk ash, metakaolin, and plastic waste to geopolymer concrete. These materials are readily available, react well with pozzolans, and may reduce garbage. This study examines the effect of these additional cementitious components on the fresh and hardened properties of geopolymer concrete. The effect of varying mix proportions, curing regimens, and activators on workability, setting time, compressive strength and flexural strength is studied. As to evaluate the efficacy of the geo-polymer concrete, numerous methods of testing and analysis approaches are discussed. The review report also talks about how using these ingredients to make geopolymer concrete is good for the earth. Using industrial by-products like fly ash, rice husk ash, metakaolin, silica fume, and GGBS can reduce the damage that making concrete does to the earth by a lot. Adding plastic trash also helps deal with the growing problem of plastic waste by giving people a safe way to get rid of it. Also mentioned are the problems and limits of using these materials in geopolymer concrete. Variability in source materials, optimization of mix design, long-term performance, and standardization of testing methods are talked about and can help guide future study and development in the field. The review paper concludes by discussing rice husk ash, fly ash, metakaolin, GGBS, silica fume, and plastic waste in geopolymer concrete. It shows how these components could improve geopolymer concrete while reducing its environmental impact. This review will educate individuals about geopolymer concrete technology and stimulate greener construction research.
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This study investigated incorporating recycled waste plastic aggregate into geopolymer concrete, finding that it can produce structurally viable construction materials while diverting plastic waste from landfill and reducing reliance on virgin aggregates.
Development of a Low-Density Waste-Based Geopolymer Construction Material
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Researchers developed low-density geopolymer construction materials by incorporating waste fly ash and polystyrene into geopolymer matrices, optimising component mixing ratios, activator concentration, and curing conditions to enhance environmental sustainability and reduce reliance on Portland cement.
A Step towards Sustainable Concrete with Substitution of Plastic Waste in Concrete: Overview on Mechanical, Durability and Microstructure Analysis
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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.
Integrating quarry dust and industrial waste in producing eco-friendly hybrid geopolymer concrete
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A hybrid geopolymer concrete incorporating industrial plastic waste (plastic shales, pellets) and quarry dust as aggregate substitutes showed comparable or superior mechanical performance to conventional cement concrete, with basalt or dolomite powder replacement increasing compressive strength by ~10%. This is relevant to microplastic research as it demonstrates a pathway to sequester plastic waste into construction materials, potentially reducing plastic fragmentation into environmental microplastics.
Sustainable geopolymers from polyethylene terephthalate waste and industrial by-products: a comprehensive characterisation and performance predictions
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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.
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