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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Castro Gomes, J.
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Publications (8/8 displayed)
- 2020Effect of activators on hybrid alkaline binder based on tungsten mining waste and ground granulated blast furnace slagcitations
- 2018Study of an alkali-activated binder based on tungsten mining mud and brick powder wastecitations
- 2018Red clay brick and tungsten mining waste-based alkali-activated binder: Microstructural and mechanical propertiescitations
- 2017Preparation Conditions for the Synthesis of Alkali-Activated Binders Using Tungsten Mining Wastecitations
- 2015Carbon Fiber Epoxy Composites for Both Strengthening and Health Monitoring of Structurescitations
- 2008Alkali-activated binders: A review. Part 2. About materials and binders manufacturecitations
- 2008Properties of tungsten mine waste geopolymeric bindercitations
- 2007Investigations about the effect of aggregates on strength and microstructure of geopolymeric mine waste mud binderscitations
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article
Preparation Conditions for the Synthesis of Alkali-Activated Binders Using Tungsten Mining Waste
Abstract
This study evaluated the results of preparation conditions for the production of an alkali-activated binder (AAB) based on a binary mixture of tailings from tungsten mine waste (TMW), and waste glass (WG) activated with a mixture of sodium silicate (SS) and sodium hydroxide (SH). A 40% by weight WG increased the amorphous nature of the binary blend by 21% without initiating the alkali-silica reaction. The SS-SH activator solution was subjected to a variation of mixing times, and its sensitivity was measured using temperature monitoring and Fourier transform infrared spectroscopy (FTIR). After 20 min of mixing, the SS-SH activator solution showed a 3.13 degrees C reduction in temperature and a 21.4% increase in unbound water content, and as a result imparted a 26% drop in the mechanical strength of TMW-WG AAB at 28 days. The TMW-WG AAB was also determined to develop the highest compressive strength when cured at 80 degrees C for 24 h in sealed conditions. The following conditions, supported by X-ray diffraction (XRD) and FTIR, are responsible for the most significant dissolution of the aluminosilicate oxides. This work is made available under the terms of the Creative Commons Attribution 4.0 International license, http://creativecommons.org/licenses/by/4.0/.