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Vol. 24 No. 39 (2015)

Papers

Response of steel pulse galvanostatic of embedded steel in alkali actived slag concrete

https://doi.org/10.19053/01211129.3548

Published 2015-05-05

  • Willian Arnulfo Aperador-Chaparro
    • ,
  • Juan Manuel Lizarazo-Marriaga
    • ,
  • Jhon Wilmar Cárdenas-Pulido

Willian Arnulfo Aperador-Chaparro
Universidad Militar Nueva Granada

Juan Manuel Lizarazo-Marriaga
Universidad Nacional de Colombia

Jhon Wilmar Cárdenas-Pulido
Universidad Militar Nueva Granada

Abstract

In this paper is presented the application of the galvanostatic pulse measurement which occurs in the activated slag concrete, submitted to accelerated carbonation processes. As reference material, we used ordinary Portland cement. Using the galvanostatic pulse technique enabled us the resistances values calculation which were involved separately in the carbonation process, allowing to find the corrosion rate by the Stern and Geary equation. The corrosion products were determined by the technique of Mössbauer Spectroscopy, corresponding to magnetite, goethite and wuestite.

Keywords

corrosion, alkali actived slag, carbonation, Mössbauer spectrometry

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