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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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conferencepaper
Fracture parameters of fly ash geopolymer mortars with carbon black and graphite filler
Abstract
In this study, the effect of carbon black and graphite filler on the crack initiation and fracture parameters of fly ash geopolymer mortar is investigated. The carbon black was added in the amount of 0.5 and 1.0% and graphite powder in the amount of 5 and 10% relative to the fly ash mass. The reference mixture without any filler was also prepared. The fracture characteristics were determined based on the results of the three-point bending test of prismatic specimens provided with an initial central edge notch. The fracture experiments were conducted at the age of 48 days. The vertical force (F), the displacement measured in the middle of the span length (d), and the crack mouth opening displacement (CMOD) were continuously recorded during the test. The records of fracture tests were subsequently evaluated using the effective crack model, work-of-fracture method, and double-K fracture model. The addition of both fine fillers led to a decrease in monitored mechanical fracture parameters in comparison with reference mortar.