Detail publikačního výsledku

Corrosion of galvanized steel in concrete environment and its impact on cement paste microstructure

ROVNANÍKOVÁ, P.

Originální název

Corrosion of galvanized steel in concrete environment and its impact on cement paste microstructure

Anglický název

Corrosion of galvanized steel in concrete environment and its impact on cement paste microstructure

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Corrosion process of galvanized steel in model pore solution of pH 12.5 or 13.5 was studied by means of electrochemical corrosion methods. Saturated solution of Ca(OH)2 causes active corrosion of galvanized steel accompanied with evolution of hydrogen gas. Corrosion resistance of galvanized steel particularly in environment of pH 13.5 is very weak. The microstructure of the interfacial transition zone between hardened Portland cement paste and zinc surface was examined by using porosimetry and SEM methods. The porosity increases in the range of pores at approx. 10 ?Ým. Cr(III) as well as Cr(VI) based conversion coating reduces the gas evolution in solution of pH 12.5, while in pH 13.5 solution only the Cr(VI) coating is effective.

Anglický abstrakt

Corrosion process of galvanized steel in model pore solution of pH 12.5 or 13.5 was studied by means of electrochemical corrosion methods. Saturated solution of Ca(OH)2 causes active corrosion of galvanized steel accompanied with evolution of hydrogen gas. Corrosion resistance of galvanized steel particularly in environment of pH 13.5 is very weak. The microstructure of the interfacial transition zone between hardened Portland cement paste and zinc surface was examined by using porosimetry and SEM methods. The porosity increases in the range of pores at approx. 10 ?Ým. Cr(III) as well as Cr(VI) based conversion coating reduces the gas evolution in solution of pH 12.5, while in pH 13.5 solution only the Cr(VI) coating is effective.

Klíčová slova v angličtině

zinc, microstructure, porosity, interlayer

Autoři

ROVNANÍKOVÁ, P.

Vydáno

01.01.2004

Nakladatel

Chimie Paris

Místo

Nice

Kniha

Eurocord 2004

Strany od

1

Strany počet

9

BibTex

@inproceedings{BUT12368,
  author="Milan {Kouřil} and Pavla {Rovnaníková} and Pavel {Novák}",
  title="Corrosion of galvanized steel in concrete environment and its impact on cement paste microstructure",
  booktitle="Eurocord 2004",
  year="2004",
  pages="9",
  publisher="Chimie Paris",
  address="Nice"
}