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Title: Optimization of CWP-BFS Blended Geopolymer Concrete Using BWM-based Taguchi Method
Authors: Chokkalingam, Ponalagappan
El-Mir, Abdulkader 
El-Hassan, Hilal
El-Dieb, Amr
Affiliations: Department of Civil and Environmental Engineering 
Keywords: Ceramic waste powder
Issue Date: 2023-06-04
Part of: International Conference on Civil, Structural and Transportation Engineering
Conference: International Conference on Civil, Structural and Transportation Engineering, ICCSTE 2023( 8th : 4-6 June, 2023 : Ottawa, Canada )
The feasibility of blending ceramic waste powder (CWP) with blast furnace slag (BFS) to produce geopolymer concrete has seen limited investigation. This study aims to optimize the mixture proportions of CWP-BFS blended geopolymer concrete for superior mechanical and durability characteristics using the best-worst method (BWM) for multi-criteria optimization. The design of the experiments was carried out using the Taguchi method for five factors, each having four levels. The resulting CWP-BFS geopolymer concrete mixtures of the L16 orthogonal array were proportioned using different binder content, BFS replacement percentage, alkali-activator solution to binder ratio (AAS/B), sodium silicate (SS) to sodium hydroxide (SH) ratio (SS/SH), and SH solution molarity. Test methods included compressive strength and water absorption. The two quality criteria were given equal weights to determine the optimal levels of factors. The method revealed that the optimum mix had a binder content of 450 kg/m3, BFS replacement percentage of 60%, AAS/B of 0.5, SS/SH of 1.5, and SH solution molarity of 10 M. Experimental findings endorse the utilization of CWP in geopolymer concrete as a means of alleviating the adverse environmental impact associated with its disposal.
ISBN: 9781990800221
DOI: 10.11159/iccste23.176
Open URL: Link to full text
Type: Conference Paper
Appears in Collections:Department of Civil and Environmental Engineering

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