Problems connected with use of hot-dip galvanized reinforcement in concrete elements

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F17%3A00315785" target="_blank" >RIV/68407700:21610/17:00315785 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.proeng.2017.02.086" target="_blank" >http://dx.doi.org/10.1016/j.proeng.2017.02.086</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.proeng.2017.02.086" target="_blank" >10.1016/j.proeng.2017.02.086</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Problems connected with use of hot-dip galvanized reinforcement in concrete elements

Popis výsledku v původním jazyce

The goal of this article is to evaluate risks arising from using hot-dip galvanized reinforcement in concrete elements. The article provides detailed summary of current experimental activities but also earlier positive remarks about applicability of hot-dip galvanized reinforcement, mainly from the perspective of corrosion and bond strength with concrete. Based on previously obtained data, the article disproves barrier effect of zinc coating on base steel. The reason is the initial corrosion reaction of zinc coating in fresh concrete producing hydrogen. Further data prove that forming hydrogen irreversibly increases porosity of cement on reinforcement/concrete interface which can significantly reduce bond strength. Sufficient filling of pores by zinc corrosion product could not be confirmed.

Název v anglickém jazyce

Problems connected with use of hot-dip galvanized reinforcement in concrete elements

Popis výsledku anglicky

The goal of this article is to evaluate risks arising from using hot-dip galvanized reinforcement in concrete elements. The article provides detailed summary of current experimental activities but also earlier positive remarks about applicability of hot-dip galvanized reinforcement, mainly from the perspective of corrosion and bond strength with concrete. Based on previously obtained data, the article disproves barrier effect of zinc coating on base steel. The reason is the initial corrosion reaction of zinc coating in fresh concrete producing hydrogen. Further data prove that forming hydrogen irreversibly increases porosity of cement on reinforcement/concrete interface which can significantly reduce bond strength. Sufficient filling of pores by zinc corrosion product could not be confirmed.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/GA14-20856S" target="_blank" >GA14-20856S: Kinetika korozních dějů a transportu korozních médií v ultra-vysokopevnostních betonech (UHPC)</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

Procedia Engineering

ISBN

—

ISSN

1877-7058

e-ISSN

1877-7058

Počet stran výsledku

8

Strana od-do

859-866

Název nakladatele

Elsevier

Místo vydání

Lausanne

Místo konání akce

Vilnius

Datum konání akce

26. 5. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000410919400112