| People | Locations | Statistics |
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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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Piotrowski, Tomasz
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2021Development of Impact-Echo Multitransducer Device for Automated Concrete Homogeneity Assessmentcitations
- 2020Influence of Activators on Mechanical Properties of Modified Fly Ash Based Geopolymer Mortarscitations
- 2020Influence of polymer modification on the microstructure of shielding concrete citations
- 2020Relation between microstructure, technical properties and neutron radiation shielding efficiency of concretecitations
- 2018Mechanical Properties of Polymer Cement-Fiber-Reinforced Concrete (PC-FRC): Comparison Based on Experimental Studies
- 2016Bound water content measurement in cement pastes by stoichiometric and gravimetric analyses
- 2014Near-to-surface properties affecting bond strength in concrete repaircitations
- 2013Surface properties of concrete and criteria for adhesion of repair systems
- 2013Surface properties of concrete and criteria for adhesion of repair systems
- 2013Effect of introducing recycled polymer aggregate on the properties of C-PC compositescitations
- 2009Some theoretical and practical considerations about surface preparation of concrete and adhesion of repair systems.
Places of action
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article
Near-to-surface properties affecting bond strength in concrete repair
Abstract
peer reviewed ; One of the main processes for repairing concrete structures is patch repair. Efficiency and durability of a repaired system depends on the bond between concrete substrate and repair material. By increasing the surface roughness, the surface treatment of concrete substrate can promote mechanical interlocking that is one of the basic mechanisms of adhesion. Nevertheless, some problems may arise from “co-lateral” effects of the treatment, especially due to the development of microcracks inside the substrate. In the presented paper, the effect of concrete substrate surface preparation has been characterized by roughness measurement, description of microcracking in the near-to-surface layer and a pull-off cohesion test. After repair, pull-off bond strength has been evaluated. It is concluded that selection of a suitable surface treatment technique should be preceded by the analysis of its aggressiveness in relation to the concrete substrate strength. A procedure for bond strength estimation using multiple regression approach, based on parameters describing surface quality really generated from various roughening techniques, is then proposed.