| 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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Ferreira, Rui Miguel
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (21/21 displayed)
- 2023Modelling of aged reinforced concrete structures for design extension conditions (CONFIT)
- 2023A closer look at the corrosion of steel liner embedded in concretecitations
- 2019Design, construction, and NDT of a mock-up for reinforced concrete walls in NPP
- 2018Betonisiltojen lujuustutkimukset 2017-2018
- 2018Mock-up wall for non-destructive testing and evaluation of thick reinforced concrete structures in nuclear power plants
- 2016Detection capability of NDT methods in steel-concrete-steel composite elements
- 2016Modeling chloride ingress under freeze-thaw loading – 3D fem approach
- 2016NDE Research of Nuclear Power Plant Primary Circuit Components and Concrete Infrastructure in Finland
- 2016Selection Matrix for Non-Destructive Testing of NPP Concrete Structures
- 2013Condition assessments and corrosion measurements of cooling water chambers in a nuclear power plant
- 2012Concrete durability based on coupled deterioration by frost, carbonation and chloride
- 2012Influence of metakaoline on the chloride penetration performance of concrete
- 2012Simulation technique for service life assessment of façade refurbishment
- 2012Service life design of concrete subject to frost attack and carbonation/chloride penetration
- 2012Effect of concrete frost deterioration on chloride penetration and carbonation
- 2009New trends in concrete-polymer composite materials and systems
- 2008New trends in concrete-polymers composite materials and systems
- 2006Estimating long-term durability parameters based on electrical resistivity measurements
- 2006Concrete workability and water resistance improvement using polymeric admixtures
- 2006Quality control based on electrical resistivity measurements
- 2004Probabilistic assessment of the durability performance of concrete structures
Places of action
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document
Design, construction, and NDT of a mock-up for reinforced concrete walls in NPP
Abstract
Construction methods, environmental stressors, and aging factors are the main causes for defects of reinforced concrete in nuclear power plants (NPP). These defects are typically occurred as corrosion of reinforcement steel, delamination, cracks, malfunction of post-tensioning or steel composite systems etc. Some of the challenges for assessing the performance of these structures by nondestructive testing methods (NDT) are that the assessment could be performed only during the annual overhauls when testing is time-limited and uncertainty of the accuracy and reliability of the available NDT testing devices combined with the lack of the international uniformity of the methods used for NDT tests.<br/>To overcome these challenges, a mock-up wall representing a section of the concrete containment of the NPP. The mock-up wall included simulated defects, which mimic the most common types of defects in NPP concrete structures such as dimensional errors, honeycombing, delamination, defects adjacent to the steel liner and voids in grouted tendon ducts for the posttensioned<br/>structures. This paper introduce the design and construction of the wall including the concrete properties, reinforcement, tendon ducts and the types of the simulated defects. The paper also introduces the NDT methods and techniques that are suitable for assessing the condition of the mock-up wall under the real environmental conditions. These techniques include mechanical<br/>methods as rebound hammer, ultrasonic and electromagnetic methods. This mock-up wall will enable to investigate reliably available NDT methods and experts’ skills providing also an important and very much need educational platform for future NDE experts.