Cationic Corrosion Inhibitors and their Migration Ability in Real Concrete Specimens

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43917675" target="_blank" >RIV/60461373:22310/18:43917675 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Cationic Corrosion Inhibitors and their Migration Ability in Real Concrete Specimens

Popis výsledku v původním jazyce

Corrosion of reinforcing steel is one of the main reasons of reinforced concrete structures deterioration, which is caused primarily by chlorides. Electrochemical chloride extraction (ECE) and electrochemical injection of corrosion inhibitor (EICI) are promising techniques eliminating this adverse effect. Both the techniques are based on application of electric field. Electrochemical chloride extraction from a reinforced concrete structure may be accompanied with an electrochemical injection of healing agents if such agents are positively charged and are able to migrate towards the activated reinforcement. The right choice can be positive charge carried by cationic corrosion inhibitors. Tests have been applied on real samples of concrete with various corrosion inhibitors using diffusion or migration methods. After the corrosion inhibitor application, the migration ability of the individual inhibitors was monitored. Comparison of migration ability of inhibitors was based on concentration profile in various depths. In addition to migration, corrosion inhibitors have been tested for sufficient corrosion inhibition efficiency that was studied in chloride containing concrete pore solution.

Název v anglickém jazyce

Cationic Corrosion Inhibitors and their Migration Ability in Real Concrete Specimens

Popis výsledku anglicky

Corrosion of reinforcing steel is one of the main reasons of reinforced concrete structures deterioration, which is caused primarily by chlorides. Electrochemical chloride extraction (ECE) and electrochemical injection of corrosion inhibitor (EICI) are promising techniques eliminating this adverse effect. Both the techniques are based on application of electric field. Electrochemical chloride extraction from a reinforced concrete structure may be accompanied with an electrochemical injection of healing agents if such agents are positively charged and are able to migrate towards the activated reinforcement. The right choice can be positive charge carried by cationic corrosion inhibitors. Tests have been applied on real samples of concrete with various corrosion inhibitors using diffusion or migration methods. After the corrosion inhibitor application, the migration ability of the individual inhibitors was monitored. Comparison of migration ability of inhibitors was based on concentration profile in various depths. In addition to migration, corrosion inhibitors have been tested for sufficient corrosion inhibition efficiency that was studied in chloride containing concrete pore solution.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA16-11879S" target="_blank" >GA16-11879S: Obnova železobetonových konstrukcí pomocí simultánního odstranění chloridů a injektování nanočástic</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

METAL 2018 - 27th International Conference on Metallurgy and Materials, Conference Proceedings

ISBN

978-80-87294-84-0

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

5

Strana od-do

1169-1174

Název nakladatele

Tanger s.r.o.

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

23. 5. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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