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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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Rafiq, Muhammad Imran
University of Brighton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2021Impact of climate change on the carbonation in concrete due to Carbon Dioxide ingresscitations
- 2020Combined impact of carbonation and crack width on the Chloride Penetration and Corrosion Resistance of Concrete Structurescitations
- 2019Effect of cracks on alkalinity level of concrete structures exposed to carbon dioxide environment condition
- 2019Influence of Carbonation on the Resistance of Concrete Structures to Chloride Penetration and Corrosioncitations
- 2018Influence of cracks on the carbonation resistance of concrete structures
- 2017The effect of rice husk ash properties on the strength and durability of concrete at high replacement ratio
- 2017Experimental investigation of the effects of aggregate size distribution on the fracture behaviour of high strength concretecitations
- 2013Stochastic modeling of chloride-induced pitting corrosion of reinforcement bars in concrete
- 2013Spatial characterisation of chloride-induced corrosion of bars in concrete
- 2013Stochastic modelling of chloride-induced pitting corrosion of reinforcement bars in concrete.
- 2012Physical characterization of reinforcing bar corrosion in concrete
Places of action
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article
Combined impact of carbonation and crack width on the Chloride Penetration and Corrosion Resistance of Concrete Structures
Abstract
<p>Chloride-induced corrosion of steel rebar embedded in concrete is one of the major concerns influencing the durability of reinforced concrete structures. It is widely recognized that the carbonation in concrete affects the chloride diffusivity and accelerates chloride-induced reinforcement corrosion. The service load-related cracks also have a dominant influence on reinforcement corrosion. This study aims to investigate the potential impact of concrete carbonation on the chloride penetration resistance, and the rate of corrosion, in RC structures subjected to service-related cracks, which is not yet fully understood within the literature. The experimental programme involves casting concrete prisms (100 × 100 × 500 mm) with different water-cement ratios of 0.4, 0.5 and 0.6 and with four different crack width ranges (0, 0.05–0.15 mm, 0.15–0.25 mm and 0.25–0.35 mm), developed through flexural loading of prisms. These samples were exposed initially to accelerated carbon dioxide (CO<sub>2</sub>) environment and then exposed to the accelerated chloride environment. Carbonation depth, chloride penetration, and the degree of corrosion (using half-cell potential and linear polarization resistance) were experimentally measured. The results indicated that (i): The depth of carbonation increases with the increase in crack width and w/c ratio, (ii) chloride penetration depth and chloride concentration profile in concrete structures increases significantly due to the influence of carbonation and (iii) half-cell corrosion potential and linear polarization resistance increases significantly when carbonated concrete samples are exposed to the chloride environment relative to the uncarbonated concrete samples.</p>