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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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Holt, Erika
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2020Characterization of Cebama low-pH reference concrete and assessment of its alteration with representative waters in radioactive waste repositoriescitations
- 2020Characterization of Cebama low-pH reference concrete and assessment of its alteration with representative waters in radioactive waste repositoriescitations
- 2020Contribution of the results of the CEBAMA project to decrease uncertainties in the Safety Case and Performance Assessment of radioactive waste repositoriescitations
- 2017Comparison of experimental and modelled pore solutions of low-pH Ordinary Portland Cement based mix designs
- 2017Development and demonstration of concrete for investigative deep borehole sealing at Olkiluoto nuclear repository site
- 2014Developing Low pH concrete for tunnel plugging structures in nuclear waste containment
- 2014Development of durable pervious concrete for Finland's stormwater management needs
- 2012Concrete durability based on coupled deterioration by frost, carbonation and chloride
- 2011Buffer component manufacturing by uniaxial compression method:Small scale
- 2011Buffer component manufacturing by uniaxial compression method
- 2006Use of gasification residues in compacted concrete paving blockscitations
- 2004Recent Finnish experience with environmentally-friendly and durable HPC
- 2004Implementing environmentally-friendly and durable concrete to Finnish practice
Places of action
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document
Concrete durability based on coupled deterioration by frost, carbonation and chloride
Abstract
Concrete performance is traditionally assessed based on deterioration caused by a single mechanism. Yet in field performance, concrete is actually being affected by simultaneous environmental and conditional exposures, possibly with synergetic effect on the degradation rate of concrete.In this paper, the results of a Finnish research project based on assessing coupling deterioration mechanisms are presented. For instance, evaluating how cracks resulting from frost attack influence chloride ingress, or howcarbonation changes the surface properties and thus may affect frost-salt scaling and chloride penetration. The research project built on 30+ years of concrete durability research, including 10 years of field station studies. The durability performance was assesses with both accelerated laboratory testing and in situ exposure results from field stations, to more realistically predict long-term performance. All the results together with local weather data served as a basis for thorough modelling, computer simulation and development of service life models. The project was composed of an extensive laboratory testing regime, in parallel to the exposure of several concrete specimens at field stations, also subject to periodic testing. Testing was based on standardizedmethods, taking into account the effects of ageing and repeated exposure cycles to different conditions as well as field studies. More than 60 different normal strength concrete mixtures were evaluated with a range of cementitious binders and air contents.The final stage of the project addressed improving service life prediction tools based on the laboratory coupled deterioration results. The project results quantitatively support the hypothesis that a holistic approach should be taken to predicting deterioration. The project has addressed improving service life prediction tools based on the laboratory coupled deteriorationresults and field testing.