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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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Rovnaník, Pavel
Brno University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2021Fracture parameters of fly ash geopolymer mortars with carbon black and graphite filler
- 2020Components of the Fracture Response of Alkali-Activated Slag Composites with Steel Microfiberscitations
- 2018Electrical properties of alkali-activated slag composite with combined graphite/CNT fillercitations
- 2018Rheological properties and microstructure of binary waste red brick powder /metakaolin geopolymercitations
- 2010Alkali-activated aluminosilicate composite with heat-resistant lightweight aggregates exposed to high temperatures: Mechanical and water transport propertiescitations
- 2010Thermal properties of alkali-activated aluminosilicate composite with lightweight aggregates at elevated temperaturescitations
- 2008Mechanical and hydric properties of alkali-activated aluminosilicate composite with electrical porcelain aggregatescitations
- 2007Effect of High Temperatures on the Properties of Alkali Activated Aluminosilicate with Electrical Porcelain Fillercitations
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article
Rheological properties and microstructure of binary waste red brick powder /metakaolin geopolymer
Abstract
Waste brick powder is a material with sufficient pozzolanic properties to be used as a supplementary cementing material in Portland cement-based concrete or as a precursor for the production of geopolymers. This study aimed to investigate a binary geopolymer system composed of metakaolin (MK), waste red brick (WRB) powder and sodium silicate solution as an alkaline activator. Five different mixtures were prepared where 0, 25, 50, 75, and 100% of the MK was substituted with WRB. The rheological parameters of the fresh pastes were correlated with a structural evaluation of the reaction process. The findings showed that the yield stress of all mixtures was very low, but it increased with time as the geopolymerization reaction proceeded. The more MK was used in the mixture, the faster the yield stress developed. On the other hand, the plastic viscosity strongly depended on the composition of the mixtures and dropped with increasing WRB/MK ratio. The mixtures containing more than 50% MK exhibited a decrease in viscosity with time due to higher reactivity and the faster dissolution of the MK particles.