Resistance of alkali-activated blast furnace slag to acids

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F22%3APU146640" target="_blank" >RIV/00216305:26310/22:PU146640 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/1742-6596/2341/1/012002" target="_blank" >https://iopscience.iop.org/article/10.1088/1742-6596/2341/1/012002</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/2341/1/01200" target="_blank" >10.1088/1742-6596/2341/1/01200</a>

Result language
angličtina
Original language name
Resistance of alkali-activated blast furnace slag to acids
Original language description
In this paper, the resistance of alkali-activated blast furnace slag to degradation processes caused by the action of various acids was studied. The ground granulated blast furnace slag was alkali-activated using sodium hydroxide in 6% Na2O dosage by the slag weight and subjected to testing of acid resistance in both organic and inorganic acidic solutions (pH ≈ 3) for 84 days. Citric, acetic, hydrochloric, and sulphuric acids were used for these purposes. The reference samples were stored in water. The progress of degradation was studied using the phenolphthalein technique, compressive strength testing, and weight measurements. Moreover, the SEM-EDX was used for the characterization of the degradation processes and microstructure changes. The degradation of alkali-activated blast furnace slag occurred in both organic and inorganic acids; however, the action of organic acids appears to be much more deteriorating. The decrease in compressive strength of about 50% and 60% was observed for acetic and citric acid, while only of 32% and 23% in sulphuric and hydrochloric, respectively.
Czech name
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Czech description
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Project
<a href="/en/project/GA19-04703S" target="_blank" >GA19-04703S: The use of non-destructive methods for testing of the condition of degraded alkali-activated concrete</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
IOP Conference Series: Materials Science and Engineering
ISBN
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ISSN
1742-6588
e-ISSN
1742-6596
Number of pages
8
Pages from-to
1-8
Publisher name
IOP Publishing
Place of publication
Telč
Event location
Telč
Event date
Jun 7, 2022
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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