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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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Topolář, Libor
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2021Blastfurnace Hybrid Cement with Waste Water Glass Activator: Alkali-Silica Reaction Studycitations
- 2021Effect of Hammer Type on Generated Mechanical Signals in Impact-Echo Testingcitations
- 2021Advanced Evaluation of the Freeze–Thaw Damage of Concrete Based on the Fracture Testscitations
- 2019Experimental Analysis of the Development of Elastic Properties and Strength under Different Ambient Temperature During the Hardening of Concretecitations
- 2018Fracture properties of concrete specimens made from alkali activated binders.citations
- 2017The use of the acoustic emission method for the monitoring of changes in the internal structure of polymer-cement mortars when testing the static compressive modulus of elasticity ; Využití metody akustické emise pro monitorování změn vnitřní struktury polymer-cementových malt během zkoušky statického modulu pružnosti v tlaku
- 2017The Acoustic Emission Parameters Obtained during Three-point Bending Test on Thermal-stressed Concrete Specimenscitations
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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.