MODELING OF CHLORIDE MIGRATION IN CONCRETE
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00314698" target="_blank" >RIV/68407700:21110/17:00314698 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
MODELING OF CHLORIDE MIGRATION IN CONCRETE
Original language description
In many cases, reinforced concrete structures are influenced by penetration of deteriorating salts that cause corrosion of the steel reinforcement. From a micro-structural point of view, concrete is a heterogeneous composite with tortuous pore microstructure with partially or fully saturated pores. Water in pores allows salt ions to be dissolved and transported towards reinforcement. Different mechanisms such as diffusion or convection take place. The ion convection can be caused by electromotive force acting on charged particles and is caused by an electrical potential gradient. This contribution is devoted to modeling of the dffusion-convection problem applied to chloride migration in concrete. The influence of an external electric field is studied and problems of chloride penetration and extraction are solved. It is shown in the paper that the electric field accelerates the chloride migration by multiple times compared to natural diffusion and can be used as an efficient treatment for rehabilitation of reinforced concrete structures affected by chloride attack.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20102 - Construction engineering, Municipal and structural engineering
Result continuities
Project
<a href="/en/project/GA16-11879S" target="_blank" >GA16-11879S: Rehabilitation of Reinforced Concrete Structures by Simultaneous Chloride Removal and Nanoparticle Injection</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Engineering Mechanics 2017 - Book of full texts
ISBN
978-80-214-5497-2
ISSN
1805-8248
e-ISSN
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Number of pages
4
Pages from-to
710-713
Publisher name
Brno University of Technology
Place of publication
Brno
Event location
Svratka
Event date
May 15, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000411657600167