Optimizing mix design methods for using slag, ceramic, and glass waste powders in eco-friendly geopolymer mortars

Faced with the urgent need to develop environmentally friendly alternatives to cementitious materials, geopolymers, made from combinations of various by-products, offer a promising solution. In recent years, statistical optimization methods have begun to be applied in the field of engineering. This...

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Bibliographic Details
Published in:Archives of Civil and Mechanical Engineering 2024-11, Vol.25 (1), p.12, Article 12
Main Authors: Boulebnane, Mohamed Aimen, Belkadi, Ahmed Abderraouf, Boudeghdegh, Kamel, Chiker, Tarek, Berkouche, Amirouche, Benaddache, Lysa, Cousture, Annelise, Aggoun, Salima
Format: Article
Language:English
Subjects:
Aluminosilicates
Aluminum silicates
Blast furnace practice
Blast furnace slags
Byproducts
Caustic soda
Cement
Ceramic powders
Civil Engineering
Compressive strength
Concrete mixing
Construction durable
Design of experiments
Design optimization
Engineering
Engineering Sciences
Flexural strength
Fourier transforms
Geopolymers
Mechanical Engineering
Mechanical properties
Microstructural analysis
Morphology
Original Article
Raw materials
Silica
Slag
Statistical methods
Structural Materials
Workability
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Summary:Faced with the urgent need to develop environmentally friendly alternatives to cementitious materials, geopolymers, made from combinations of various by-products, offer a promising solution. In recent years, statistical optimization methods have begun to be applied in the field of engineering. This study focuses on sustainable geopolymer mortars by incorporating industrial by-product powders, specifically blast furnace slag (SP), waste glass powder (GP), and ceramic powder (CP) as partial replacements. Compressive strength, flexural strength, workability, and density were evaluated for various ternary compositions using a Mix Design Model (MDM) approach. The main results revealed a synergistic interaction between SP and CP, with a 20% replacement of CP leading to a 16% increase in compressive strength, indicating optimal performance. Microstructural analysis using SEM, TGA, and FTIR highlighted a dense, crack-free matrix with extensive calcium aluminosilicate gel phases, particularly in the SP–CP mixture. Optimization through desirability profiling identified a 30% CP replacement as ideal for maximizing strength and workability. Controlled optimization of multi-component geopolymer synthesis using by-products streams proves to be a promising method for developing next-generation sustainable construction materials.
ISSN:2083-3318
1644-9665
2083-3318
DOI:10.1007/s43452-024-01077-3