Alkali-Activated Metakaolins: Mineral Chemistry and Quantitative Mineral Composition
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F22%3A10250681" target="_blank" >RIV/61989100:27360/22:10250681 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27710/22:10250681 RIV/61989100:27640/22:10250681
Result on the web
<a href="https://www.mdpi.com/2075-163X/12/11/1342" target="_blank" >https://www.mdpi.com/2075-163X/12/11/1342</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Alkali-Activated Metakaolins: Mineral Chemistry and Quantitative Mineral Composition
Original language description
The reaction products resulting from the alkali-activation of metakaolin are impacted by the composition of the initial kaolin, and amount of alkali-activated kaolinite and water. The present study focused on analyzing these parameters on the metakaolins calcined at 800 degrees C from three kaolins, and the metakaolins' alkali activation for 2, 3 and 28 days. The first objective was to evaluate the mineral chemistry and quantitative mineral phase composition from the bulk chemical analysis using the chemical quantitative mineral analysis (CQMA) procedure and conduct a comparison of the chemistry of the metakaolins after alkali activation for 28 days according to the elements Al, Si, Na and K, using the leaching test in distilled water. The second task was to search for possible relationships between the quantitative number of phases in alkali-activated metakaolins and compressive strength. The main methods used for the characterization of material were X-ray fluorescence, X-ray diffraction, thermal TG/DTA and infrared spectroscopy. Metakaolins alkali activated for 28 days contained crystalline quartz, muscovite, orthoclase, and unreacted metakaolinite contained zeolite A (Z-A), hydrosodalite (HS) and thermonatrite (TN) in the amorphous/weakly crystalline phase. The compressive strengths (CS) from 6.42 +/- 0.33 to 9.97 +/- 0.50 MPa are related positively to H2O+ and H2O bound in HS and TN.
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
20500 - Materials engineering
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Minerals
ISSN
2075-163X
e-ISSN
2075-163X
Volume of the periodical
12
Issue of the periodical within the volume
11
Country of publishing house
CH - SWITZERLAND
Number of pages
18
Pages from-to
1-18
UT code for WoS article
000882094100001
EID of the result in the Scopus database
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