Chloride-related phenomena in limestone cement materials: effect of mineral admixtures and sulfates
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F19%3A00505716" target="_blank" >RIV/68378297:_____/19:00505716 - isvavai.cz</a>
Result on the web
<a href="https://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&ID=51716820" target="_blank" >https://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&ID=51716820</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14359/51716820" target="_blank" >10.14359/51716820</a>
Alternative languages
Result language
angličtina
Original language name
Chloride-related phenomena in limestone cement materials: effect of mineral admixtures and sulfates
Original language description
The development of environmentally friendly cementitious materials, efficient in preventing chloride ingress and decreasing reinforcement corrosion risk, is significantly important for structural applications exposed to corrosive conditions. This paper investigates the effect of natural pozzolana, fly ash, blast-furnace slag, and metakaolin on the behavior of portland-limestone cement concretes and mortars during storage in chloride-sulfate and chloride solutions at 5°C (41°F). Acid- and water-soluble chloride contents, and apparent chloride diffusion coefficients, were determined in concretes. Reinforcement corrosion half-cell potential and current density, mass loss of steel reinforcing bars, and carbonation depth were monitored in mortars. The employment of mineral admixtures decreased chloride ingress and reinforcement corrosion during specimens’ exposure to chloride solution, however, the presence of sulfates in the corrosive environment prevented their improving effect. Mineral admixtures increased chloride binding and the resistance of concrete against chloride diffusion, while they also showed similar efficiency in preventing reinforcement corrosion. Sulfates facilitated chloride ingress, hindered chloride binding, and promoted reinforcement corrosion.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACI Materials Journal
ISSN
0889-325X
e-ISSN
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Volume of the periodical
116
Issue of the periodical within the volume
6
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
19-30
UT code for WoS article
000500743500002
EID of the result in the Scopus database
2-s2.0-85076237279