Please use this identifier to cite or link to this item: https://rda.sliit.lk/handle/123456789/3078
Title: The use of plastic aggregate in concrete
Authors: Karunaratne, S
Zahra Ameen, C. A
Keywords: plastic aggregate
concrete
Plastic waste management
Issue Date: 4-Oct-2022
Publisher: IEEE
Citation: S. A. Z. Ameen and S. Karunaratne, "The use of plastic aggregate in concrete," 2022 Moratuwa Engineering Research Conference (MERCon), 2022, pp. 1-6, doi: 10.1109/MERCon55799.2022.9906143.
Series/Report no.: 2022 Moratuwa Engineering Research Conference (MERCon);
Abstract: Plastic waste management is a growing concern worldwide since permanent solutions are costly for third-world countries. This study explores storing plastic waste in concrete as a partial replacement of the fine aggregate to produce a useful building material. To resolve the material's lack of compressive strength, this study used HDPE chemically treated with Sodium Hypochlorite (NaOCl) and partially replaced the cement with silica fume at 7.5%, and 10% to improve the concretes Interfacial Transition Zones (ITZ). This research tests the workability, density, and compressive strength, and completes a microstructure analysis of this material to determine if structural lightweight concrete (SLWC) can be produced. The results obtained indicate that adding silica fume with chemically treated aggregate increased the compressive strength by 1.9% and 7.4% respectively in comparison to the control. Through the statistical analysis, these additions were then shown to make a significant difference in the concrete's strength. The microstructure analysis too confirmed that the quality of the ITZs had improved in these mixtures. However, the workability of these 2 mixtures was reduced by 77.4%. The study concludes that although the concrete isn't lightweight, its compressive strength can be improved to match that of conventional structural concrete.
URI: https://rda.sliit.lk/handle/123456789/3078
ISSN: 2691-364X
Appears in Collections:Department of Civil Engineering

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