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Characterizing steel corrosion in different alkali-activated mortars [Elektronski vir]Gartner, Nina ...Alkali-activated materials (AAMs) present a promising potential alternative to ordinary Portland cement (OPC). The service life of reinforced concrete structures depends greatly on the corrosion ... resistance of the steel used for reinforcement. Due to the wide range and diverse properties of AAMs, the corrosion processes of steel in these materials is still relatively unknown. Three different alkali-activated mortar mixes, based on fly ash, slag, or metakaolin, were prepared for this research. An ordinary carbon-steel reinforcing bar was installed in each of the mortar mixes. In order to study the corrosion properties of steel in the selected mortars, the specimens were exposed to a saline solution in wet/dry cycles for 17 weeks, and periodic electrochemical impedance spectroscopy (EIS) measurements were performed. The propagation of corrosion damage on the embedded steel bars was followed using X-ray computed microtomography (XCT). Periodic EIS measurements of the AAMs showed different impedance response in individual AAMs. Moreover, these impedance responses also changed over the time of exposure. Interpretation of the results was based on visual and numerical analysis of the corrosion damages obtained by XCT, which confirmed corrosion damage of varying type and extent on steel bars embedded in the tested AAMs.Vir: Materials [Elektronski vir]. - ISSN 1996-1944 (Vol. 14, iss. 23, 2021, str. 1-14)Vrsta gradiva - e-članek ; neleposlovje za odrasleLeto - 2021Jezik - angleškiCOBISS.SI-ID - 88913923
Avtor
Gartner, Nina |
Hren, Miha |
Kosec, Tadeja |
Legat, Andraž
Teme
korozija |
alkalijsko-aktivirane malte |
armaturno jeklo |
elektrokemijska impedančna spektroskopija |
rentgenska računalniška mikrotomografija |
vizualna analiza |
odprti dostop |
corrosion |
alkali-activated mortars |
steel reinforcement |
electrochemical impedance spectroscopy |
X-ray computed microtomography |
visual analysis |
open access
Avtor | Gartner, Nina ... |
Naslov | Characterizing steel corrosion in different alkali-activated mortars [Elektronski vir] |
Datum objave | 2021-11-30 |
COBISS.SI-ID | 88913923 |
Verzija objave v repozitoriju | Založnikova različica |
Licenca objave v repozitoriju | Creative Commons Priznanje avtorstva 4.0 Mednarodna |
Embargo | Takojšnja javna objava |
Projekti, iz katerih je bila financirana objava
Naziv | Akronim | Številka projekta | Financer |
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Gradbeni objekti in materiali | P2-0273-2019 |
Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije |
Datoteke, ki spadajo k objavi
Povezava |
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https://www.mdpi.com/1996-1944/14/23/7366 |
https://dirros.openscience.si/IzpisGradiva.php?id=16102 |
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Ime baze podatkov | Področje | Leto |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Gartner, Nina | 31346 |
Hren, Miha | 37501 |
Kosec, Tadeja | 22315 |
Legat, Andraž | 08281 |
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