Shishir Mundra (Avtor), Gabriel Samson (Avtor), Giulia Masi (Avtor), Rebecca Achenbach (Avtor), David M. Bastidas (Avtor), Susan A. Bernal (Avtor), Maria Chiara Bignozzi (Avtor), Maria Criado (Avtor), Martin Cyr (Avtor), Nina Gartner (Avtor), Stefanie von Greve‐Dierfeld (Avtor), Andraž Legat (Avtor), Nikoonasab Ali (Avtor), John L. Provis (Avtor), Michael Raupach (Avtor), Gregor J. G. Gluth (Avtor)

Povzetek

Alkali‐activated materials (AAMs) are binders that can complement and partially substitute the current use of conventional cement. However, the present knowledge about how AAMs protect steel reinforcement in concrete elements is incomplete, and uncertainties exist regarding the application of electrochemical methods to investigate this issue. The present review by EFC WP11‐Task Force ‘Corrosion of steel in alkali‐activated materials’ demonstrates that important differences exist between AAMs and Portland cement, and between different classes of AAMs, which are mainly caused by differing pore solution compositions, and which affect the outcomes of electrochemical measurements. The high sulfide concentrations in blast furnace slag‐based AAMs lead to distinct anodic polarisation curves, unusually low open circuit potentials, and low polarisation resistances, which might be incorrectly interpreted as indicating active corrosion of steel reinforcement. No systematic study of the influence of the steel–concrete interface on the susceptibility of steel to corrosion in AAMs is available. Less common electrochemical methods present an opportunity for future progress in the field.

Ključne besede

alkalijsko aktivirani materiali;anodno/katodna polarizacija;beton;linearna polarizacijska upornost;potencial odprtega kroga;korozija armature;upornost;odprti dostop;alkali-aktivated materials;alkali‐activated materials;anodic/cathodic polarisation;concrete;linear polarisation resistance;open circuit potential;reinforcement corrosion;resistivity;open access;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: ZAG - Zavod za gradbeništvo Slovenije
Založnik: Wiley VCH
UDK: 544.5/.6
COBISS: 151451651 Povezava se bo odprla v novem oknu
ISSN: 1521-4176
Št. ogledov: 62
Št. prenosov: 10
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: alkalijsko aktivirani materiali;anodno/katodna polarizacija;beton;linearna polarizacijska upornost;potencial odprtega kroga;korozija armature;upornost;
Komentar vira: Nasl. z nasl. zaslona; Opis vira z dne 9. 5. 2023;
Strani: str. 998-1008
Letnik: ǂVol. ǂ74
Zvezek: ǂiss. ǂ7
Čas izdaje: Jul. 2023
DOI: 10.1002/maco.202313743
ID: 19075338