Viscosimetry of cement pastes - Analytical and numerical solutions

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00348389" target="_blank" >RIV/68407700:21110/21:00348389 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1063/5.0042095" target="_blank" >https://doi.org/10.1063/5.0042095</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0042095" target="_blank" >10.1063/5.0042095</a>

Result language
angličtina
Original language name
Viscosimetry of cement pastes - Analytical and numerical solutions
Original language description
The paper briefly summarizes theory needed for analytical and numerical solutions applied in viscosimetry of cement pastes. Practical lab or field tests (such as slump-flow tests) are compared with viscosity characterization in a rotational rheometer. Analytical solutions and numerical approaches are verified on experimental data gained on three different mixtures varying in water to binder ratio and in the presence of an additive. It was found that simple analytical estimates are not appropriate in most cases. Numerical models are highly dependent on the constitutive parameters that are extracted from rheometers. Two simple model variants were studied and conclusions on the suitability of the models drawn for the cement pastes. In specific cases (simple cement pastes without additives) the agreement with experimental data was found. For a cement paste with thixotropic additive simple models fail and other more complex model would be appropriate.
Czech name
—
Czech description
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Project
<a href="/en/project/FW01010521" target="_blank" >FW01010521: Microstructural modifications of self-compacting concrete to reduce formwork pressures</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
SPECIAL CONCRETE AND COMPOSITES 2020: 17th International Conference
ISBN
978-0-7354-4066-1
ISSN
0094-243X
e-ISSN
0094-243X
Number of pages
7
Pages from-to
—
Publisher name
AIP Publishing
Place of publication
Melville, NY
Event location
Skalský Dvůr
Event date
Oct 14, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000653725400031

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