INFLUENCE OF CATHODIC PROTECTION ON pH AND CHANGE OF SOIL ELECTROLYTE COMPOSITION
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F15%3A43901190" target="_blank" >RIV/60461373:22310/15:43901190 - 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
INFLUENCE OF CATHODIC PROTECTION ON pH AND CHANGE OF SOIL ELECTROLYTE COMPOSITION
Original language description
Cathodic protection is applied especially to protection of coating fault on a buried pipe line in a soil. According to some authors, the mechanism of cathodic protection of carbon steel is a shift of open circuit potential into the immunity region or reducing of anodic reaction rate in the active state. The importance of change of pH and soil electrolyte composition during applying cathodic protection is sometime ignored. The study deals with influence of cathodic protection on pH change and anions migration in soil electrolyte close to protected carbon steel surface. Concentration of chlorides, sulphates and hydrogen carbonates decreased about two orders of magnitude during applying cathodic protection. The migration rate of hydroxides during cathodicpolarization is lower than their production by cathodic reduction of oxygen. As a result of cathodic reduction of oxygen, the pH of soil electrolyte close to protected surface gradually increases up to 12. The final pH of soil electrolyt
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JK - Corrosion and material surfaces
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA14-20856S" target="_blank" >GA14-20856S: The kinetics of corrosion processes and corrosion media transport in advanced ultra-high performance concretes (UHPC)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
METAL 2015: 24th International Conference on Metallurgy and Materials
ISBN
978-80-87294-62-8
ISSN
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e-ISSN
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Number of pages
5
Pages from-to
1052-1057
Publisher name
Tanger s.r.o.
Place of publication
Ostrava
Event location
Brno
Event date
Jun 3, 2015
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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