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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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Šimonová, Hana
Brno University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2024Hybrid Geopolymer Composites Based on Fly Ash Reinforced with Glass and Flax Fibers
- 2021Mechanical Fracture and Fatigue Characteristics of Fine-Grained Composite Based on Sodium Hydroxide-Activated Slag Cured under High Relative Humiditycitations
- 2021Deflection of an eccentric crack under mixed-mode conditions in an SCB specimencitations
- 2021Strength characteristics of concrete exposed to the elevated temperatures according to the temperature-time curve ISO 834citations
- 2021Influence of rock inclusion composition on the fracture response of cement-based composite specimenscitations
- 2021Advanced Evaluation of the Freeze–Thaw Damage of Concrete Based on the Fracture Testscitations
- 2021Fracture parameters of fly ash geopolymer mortars with carbon black and graphite filler
- 2021Numerical analysis of a semi-circular disc with an angled crack loaded in mixed-mode
- 2020Modelling of interfacial transition zone effect on resistance to crack propagation in fine-grained cement-based compositescitations
- 2020Mechanical Fracture and Fatigue Characteristics of Fine-Grained Composite Based on Sodium Hydroxide-Activated Slag Cured under High Relative Humiditycitations
- 2020Multi-parameter fracture mechanics: crack path in a mixed-mode specimencitations
- 2020Components of the Fracture Response of Alkali-Activated Slag Composites with Steel Microfiberscitations
- 2018Fracture properties of concrete specimens made from alkali activated binders.citations
Places of action
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conferencepaper
Fracture properties of concrete specimens made from alkali activated binders.
Abstract
The aim of this paper is to quantify crack initiation and other fracture properties – effective fracture toughness and specific fracture energy – of two types of concrete with an alkali activated binder. The beam specimens with a stress concentrator were tested in a three-point bending test after 28, 90, and 365 days of maturing. Records of fracture tests in the form of load versus deflection (P–d) diagrams were evaluated using effective crack model and work-of-fracture method and load versus mouth crack opening displacement (P–CMOD) diagrams were evaluated using the Double-K fracture model. The initiation of cracks during the fracture tests for all ages was also monitored by the acoustic emission method. The higher value of monitored mechanical fracture parameters of concrete with alkali activated blast furnace slag were achieved with substitution blast furnace slag by low calcium fly ash in comparison with substitution by cement kiln dust.