Kinetics of zinc corrosion in concrete as a function of water and oxygen availability

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43919478" target="_blank" >RIV/60461373:22310/19:43919478 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21610/19:00335554

Výsledek na webu

<a href="https://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=6&SID=F5NLzuzGLCBdXnZd1Z8&page=1&doc=5" target="_blank" >https://apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=6&SID=F5NLzuzGLCBdXnZd1Z8&page=1&doc=5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma12172786" target="_blank" >10.3390/ma12172786</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Kinetics of zinc corrosion in concrete as a function of water and oxygen availability

Popis výsledku v původním jazyce

This paper studies the effect of water as an oxidation agent and also of oxygen on zinc corrosion kinetics in active state in concrete, using high-sensitivity electrical resistance sensors. It was proven that zinc corrosion in active state is strongly affected by the presence of water at its surface. Zinc corrosion in real concrete in the absence of water can be misinterpreted as salt passivity. The presence of oxygen results in an increase of zinc corrosion rate, however at pH 12.6, passivity can occur. It was verified that corrosion products consisting primarily of Ca[Zn(OH)3]2·2H2O cannot effectively passivate zinc surface in concrete, even after 1800 h of exposure and zinc, or hot-dip galvanized steel can corrode at an unacceptable corrosion rate (more than 4 μm·a-1)

Název v anglickém jazyce

Kinetics of zinc corrosion in concrete as a function of water and oxygen availability

Popis výsledku anglicky

This paper studies the effect of water as an oxidation agent and also of oxygen on zinc corrosion kinetics in active state in concrete, using high-sensitivity electrical resistance sensors. It was proven that zinc corrosion in active state is strongly affected by the presence of water at its surface. Zinc corrosion in real concrete in the absence of water can be misinterpreted as salt passivity. The presence of oxygen results in an increase of zinc corrosion rate, however at pH 12.6, passivity can occur. It was verified that corrosion products consisting primarily of Ca[Zn(OH)3]2·2H2O cannot effectively passivate zinc surface in concrete, even after 1800 h of exposure and zinc, or hot-dip galvanized steel can corrode at an unacceptable corrosion rate (more than 4 μm·a-1)

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA17-22796S" target="_blank" >GA17-22796S: Experimentální a numerická analýza soudržnosti kovové výztuže s ultra vysokohodnotným betonem (UHPC) za vysokých teplot</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Materials

ISSN

1996-1944

e-ISSN

—

Svazek periodika

12

Číslo periodika v rámci svazku

17

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

13

Strana od-do

1-13

Kód UT WoS článku

000488880300139

EID výsledku v databázi Scopus

2-s2.0-85071845074