Effect of Ultrafine Additives on the Morphology of Cement Hydration Products
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F21%3APU141478" target="_blank" >RIV/00216305:26110/21:PU141478 - isvavai.cz</a>
Result on the web
<a href="https://www.mdpi.com/2073-4352/11/8/1002" target="_blank" >https://www.mdpi.com/2073-4352/11/8/1002</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/cryst11081002" target="_blank" >10.3390/cryst11081002</a>
Alternative languages
Result language
angličtina
Original language name
Effect of Ultrafine Additives on the Morphology of Cement Hydration Products
Original language description
The present research is focused on the investigation of the influence of ultrafine additives on the structure formation of hardened cement paste and the establishment of the mechanisms of the morphological transformations, which determine the properties of hydrated products. In the course of the research, the modification of ordinary Portland cement was performed by the suspension of multi-walled carbon nanotubes (MWCNTs), carbon black (CB) paste, and silica fume (SF). Scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) microanalysis, X-ray diffraction (XRD) analysis, thermal analysis, and Fourier-transform infrared (FTIR) spectroscopy were used to study cement hydration products. The morphology of hardened cement paste depends on the chemical reactivity of additives, their geometry, and their genesis. The action mechanism of the inert carbon-based additives and pozzolanic silica fume were considered. The cement hydration products formed in the process of modification by both types of ultrafine additives are described. In the case of the modification of cement paste by inert MWCNTs and CB paste, the formation of cement hydration products on their surface without strong adhesion was observed, whereas in the case of the addition of SF separately and together with MWCNTs, the strong adhesion of additives and cement hydration products was noted.
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
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Crystals
ISSN
2073-4352
e-ISSN
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Volume of the periodical
11
Issue of the periodical within the volume
8
Country of publishing house
CH - SWITZERLAND
Number of pages
20
Pages from-to
1002-1022
UT code for WoS article
000688901700001
EID of the result in the Scopus database
2-s2.0-85113445873