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KUZIELOVA, E. SLANÝ, M. ŽEMLIČKA, M. MÁSILKO, J.
Original Title
Accelerated carbonation of oil-well cement blended with pozzolans and latent hydraulic materials
Type
journal article in Web of Science
Language
English
Original Abstract
Accelerated carbonation of cement mixtures consisting of class G cement, silica fume, metakaolin, or blast furnace slag was studied by thermogravimetric, X-ray diffraction and Fourier transform infrared analyses for 1 year. Surface parts were fully carbonated during the first 7 days. Polymerization of amorphous hydrates due to their decalcification was observed together with the rising amount of calcium carbonates and reformation of gypsum from ettringite and monosulfate. Decalcification of clinker phases took place fast after the depletion of portlandite. Although portlandite was still present in unblended pastes, because of slower carbonation rate in the surface parts and higher C/S ratio of amorphous hydrates, the carbonation front moved inward during 3 months. Pozzolanic reactions in the samples with 30 mass% of additives depleted portlandite, however, higher amounts of C-(A)-S-H phases with lower C/S ratio, denser microstructure and faster carbonation of surface parts ensured their resistance against carbonation throughout the monitored period.
Keywords
Carbonation; Silica fume; Metakaolin; Ground-granulated blast-furnace slag
Authors
KUZIELOVA, E.; SLANÝ, M.; ŽEMLIČKA, M.; MÁSILKO, J.
Released
12. 8. 2023
Publisher
SPRINGER
Location
DORDRECHT
ISBN
1388-6150
Periodical
Journal of Thermal Analysis and Calorimetry
Year of study
148
Number
19
State
Hungary
Pages from
9963
Pages to
9977
Pages count
15
URL
https://link.springer.com/content/pdf/10.1007/s10973-023-12378-9.pdf
Full text in the Digital Library
http://hdl.handle.net/11012/245040
BibTex
@article{BUT187452, author="Eva {Kuzielova} and Michal {Slaný} and Matúš {Žemlička} and Jiří {Másilko}", title="Accelerated carbonation of oil-well cement blended with pozzolans and latent hydraulic materials", journal="Journal of Thermal Analysis and Calorimetry", year="2023", volume="148", number="19", pages="9963--9977", doi="10.1007/s10973-023-12378-9", issn="1388-6150", url="https://link.springer.com/content/pdf/10.1007/s10973-023-12378-9.pdf" }