Corrosion Mechanism and Bond-Strength Study on Galvanized Steel in Concrete Environment
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43914191" target="_blank" >RIV/60461373:22310/17:43914191 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.14773/cst.2017.16.2.69" target="_blank" >http://dx.doi.org/10.14773/cst.2017.16.2.69</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14773/cst.2017.16.2.69" target="_blank" >10.14773/cst.2017.16.2.69</a>
Alternative languages
Result language
angličtina
Original language name
Corrosion Mechanism and Bond-Strength Study on Galvanized Steel in Concrete Environment
Original language description
Zinc coating on carbon steels give the higher corrosion resistance in chloride containing environments and in carbonated concrete. However, hydrogen evolution accompanies the corrosion of zinc in the initial activity in fresh concrete, which can lead to the formation of a porous structure at the reinforcement -concrete interface, which can potentially reduce the bond-strength of the reinforcement with concrete. The present study examines the mechanism of the corrosion of hot-dip galvanized steel in detail, as in the model pore solutions and real concrete. Calcium ion plays an important role in the corrosion mechanism, as it prevents the formation of passive layers on zinc at an elevated alkalinity. The corrosion rate of galvanized steel decreases in accordance with the exposure time; however, the reason for this is not the zinc transition into passivity, but the consumption of the less corrosion-resistant phases of hot-dip galvanizing in the concrete environment. The results on the electrochemical tests have been confirmed by the bond-strength test for the reinforcement of concrete and by evaluating the porosity of the cement adjacent to the reinforcement.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
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
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Corrosion Science and Technology
ISSN
1598-6462
e-ISSN
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Volume of the periodical
16
Issue of the periodical within the volume
2
Country of publishing house
KR - KOREA, REPUBLIC OF
Number of pages
7
Pages from-to
"69 "-75
UT code for WoS article
000410978200004
EID of the result in the Scopus database
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