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Advances in Concrete Construction Volume 17, Number 3, June 2024 , pages 167-177 DOI: https://doi.org/10.12989/acc.2024.17.3.167 |
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Microstructure and mechanical properties of ternary pastes activated with multi-colors glass and brick wastes |
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I.Y. Omri, N. Tebbal and Z. Rahmouni
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| Abstract | ||
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Disposal of waste glass derived from bottle or packaging glass, flat glass, domestic glass is one of the major environmental defies. Moreover, the remnants of bricks resulting from the remnants of buildings are also considered an important factor in polluting the environment due to the difficulty of filling or getting rid it. The aim of this study is to valorize these wastes through chemical activation to be an environmentally friendly material. The Microstructure, compressive strength, setting time, drying shrinkage, water absorption of different pastes produced by clear glass (CG), green glass (GG) and brick waste (BP) activated were tested and recorded after curing for 3, 7, 28 and 365 days. Five samples of pastes were mixed in proportions represented by: 100% GP (GP), 100% GGP (GGP), 100% BP (BP), 90% GP + 10% BP (GPB) and 90% GGP + 10% BP (GGPB). Various parameters considered in this study include sodium hydroxide concentrations (10 mol/l); 0.4 as alkaline liquid to binder ratio; 2.5 as sodium silicate to sodium hydroxide ratio and cured at 60°C for 24 hours. Experimental results revealed that the addition of 10% of BP resulted in an increased strength performance of geopolymer paste especially with GGPB compared to GGP in 365 days. In addition, the 10% amount of BP increases the absorption and shrinkage rate of geopolymer pastes (GPB and GGPB) by reducing the setting time. SEM results revealed that the addition of BP and GP resulted in a dense structure.
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| Key Words | ||
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absorption; activators; compressive strength; glass-brick wastes; microstructure; setting time
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| Address | ||
| (1) I.Y. Omri, Z. Rahmouni: Faculte of Technology, Geomaterials Development Laboratory, M'sila University, M'sila (28000), Algeria; (2) N. Tebbal: Institute of Technical Urban Management, Geomaterials Development Laboratory, M'sila University, M'sila (28000), Algeria | ||
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