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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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Novotný, Radoslav
Brno University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2024Effect of four-component binder on characteristics of self-compacting and fibre-reinforced self-compacting mortarscitations
- 2023Influence of Anticorrosive Surface Treatment of Steel Reinforcement Fibers on the Properties of Ultra-High Performance Cement Compositecitations
- 2023Early and middle stages of multicomponent cement hydration under the effect of geothermal water and increased temperaturescitations
- 2023The Effects of Silica Fume and Superplasticizer Type on the Properties and Microstructure of Reactive Powder Concretecitations
- 2022Effect of alkali salts on the hydration process of belite clinkercitations
- 2022Influence of Anticorrosive Surface Treatment of Steel Reinforcement Fibers on the Properties of Ultra-High Performance Cement Compositecitations
- 2022The influence of supplementary cementitious materials on the hydration of Dyckerhoff G-Oil cementcitations
- 2022The thermal analysis of zinc oxide‑contaminated Portland cement blended with thiocyanates and determination of their effect on hydration and propertiescitations
- 2021Optimization of cementitious composite for heavyweight concrete preparation using conduction calorimetrycitations
- 2021Use of clay from a local source for calcination and subsequent preparation of the mixed cementcitations
- 2020Cement Kiln By-Pass Dust: An Effective Alkaline Activator for Pozzolanic Materialscitations
Places of action
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article
Influence of Anticorrosive Surface Treatment of Steel Reinforcement Fibers on the Properties of Ultra-High Performance Cement Composite
Abstract
The influence on the bond between the steel fiber and the matrix of the anticorrosive treatments of steel used for concrete reinforcement is not yet fully understood. The topic of steel fiber treatment was not also studied clearly in terms of brass removal before. This paper deals with how the brass on the surface of steel fibers behaves in the UHPC matrix and how it affects its properties. The steel fibers were firstly modified with a number of surface treatments to remove brass on their surface. Some of the treatments have never been tried before for this purpose. Secondly, the surface of the fibers was analyzed by SEM, EDS, XRF, and stereomicroscopy. Lastly, the properties of the composites were analyzed. It was found out that the majority of brass on the surface of the fibers could be removed by mixture of NH3 and H2O2 with a ratio of 3:1 (v/v). It was also found out that the surface treatment slightly affects the mechanical properties, but it does that only by mechanical interlocking between the fiber and the matrix. No dissolution of the surface treatment was observed under the given conditions. According to the results, steel fibers without surface treatment should be used in UHPC if available.