Belit Cement Based on Concrete Recyclate

Main phase of belite cement is β-C2S. This modification is distinguished by low hydration speed compared to alite, which is main mineral of commonly produced cement. It is possible to increase the low hydration speed by modification of raw mixture by potassic ions, which basically change the belite...

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Bibliographic Details
Published inKey Engineering Materials Vol. 722; pp. 163 - 167
Main Authors Kulísek, Karel, Gazdič, Dominik, Dvořák, Karel, Magrla, Radek
Format Journal Article
LanguageEnglish
Published Trans Tech Publications Ltd 01.12.2016
Subjects
Cements
Clinker
Combustion
Dicalcium silicate
Free energy
Hydration
Raw
Tricalcium silicate
Belite
Concrete Recyclate
Cement
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ISBN3035710791
9783035710793
ISSN1013-9826
1662-9795
1662-9795
DOI10.4028/www.scientific.net/KEM.722.163

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Summary:Main phase of belite cement is β-C2S. This modification is distinguished by low hydration speed compared to alite, which is main mineral of commonly produced cement. It is possible to increase the low hydration speed by modification of raw mixture by potassic ions, which basically change the belite structure. It leads to the content increase of internal free energy and therefore its reactivity too. Positioning of potassic ions in produced clinker is solved by combined burning.
Bibliography:Selected, peer reviewed papers from the 13th International Conference “Special Concrete and Composite 2016”, October 13-14, 2016, Skalský Dvůr, Czech Republic
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ISBN:3035710791
9783035710793
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.722.163