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Title:The corrosion properties of steel in pore solutions obtained from alkali‐activated mortars
Authors:ID Gartner, Nina (Author)
ID Kosec, Tadeja (Author)
ID Poyet, Stéphane (Author)
ID Legat, Andraž (Author)
Files:.pdf PDF - Presentation file. (2,73 MB, This file will be accessible after 28.04.2024)
MD5: 772C88CAFACD58CB8A6743920ADAB420
URL URL - Source URL, visit
Typology:1.01 - Original Scientific Article
Organization:Logo ZAG - Slovenian National Building and Civil Engineering Institute
Abstract:Alkali‐activated materials (AAMs) are considered a promising alternative to materials made from ordinary Portland cement (OPC). Other than considering the durability of the material itself, the use of AAMs for reinforced concrete elements also raises the question of steel corrosion processes in these materials, which are still relatively unknown. Three different alkali‐activated mortars were prepared for this study, based on either fly ash, slag, or metakaolin. Pore solutions were then extracted from each mortar and chemically analyzed. Electrochemical techniques were used to study the corrosion of steel in synthetic pore solutions containing varying concentrations of chlorides. In parallel, the same corrosion tests were performed in a generic pore solution representing OPC mortar. It was shown that the chemical composition differed in each pore solution tested, thus affecting the corrosion properties of the steel. The addition of chloride also had a varying effect on the corrosion properties of the steel in each type of pore solution tested. This study provided a basic overview of the corrosion behavior and mechanisms of the various AAM environments in comparison to that of OPC.
Keywords:alkali-aktivated materials, corrosion, electrochemical corrosion techniques, extracted pore solution
Publication status in journal:Published
Article version:Postprint, final article version, accepted into publication
Publication date:28.03.2023
Publisher:Wiley VCH
Year of publishing:2023
Number of pages:str. 1009-1021
Numbering:Vol. 74, iss. 7
PID:20.500.12556/DiRROS-17292 New window
ISSN on article:1521-4176
DOI:10.1002/maco.202313729 New window
COBISS.SI-ID:151389443 New window
Copyright:© 2023 Wiley‐VCH GmbH.
Note:Nasl. z nasl. zaslona; Opis vira z dne 9. 5. 2023;
Publication date in DiRROS:20.11.2023
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Record is a part of a journal

Title:Materials and corrosion
Shortened title:Mater. corros.
Publisher:Wiley VCH
COBISS.SI-ID:21828101 New window

Document is financed by a project

Funder:Drugi - Drug financer ali več financerjev
Name:Phenomenological modelling of steel corrosion in concretes for service life prediction

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Project number:P2-0273
Name:Gradbeni objekti in materiali


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Secondary language

Keywords:alkalijsko aktivirani materiali, korozija, elektrokemijske korozijske tehnike, iztisnjena porna voda