Paddle Mixer for Viscoplastic Materials and Pastes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F24%3A00376168" target="_blank" >RIV/68407700:21220/24:00376168 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.15255/CABEQ.2024.2289" target="_blank" >https://doi.org/10.15255/CABEQ.2024.2289</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.15255/CABEQ.2024.2289" target="_blank" >10.15255/CABEQ.2024.2289</a>
Alternative languages
Result language
angličtina
Original language name
Paddle Mixer for Viscoplastic Materials and Pastes
Original language description
A modified paddle mixer suitable for the homogenization of viscoplastic fluids and pastes, such as contemporary concrete mixtures, was developed to enhance homogeneity of the product, a crucial step in ensuring desired mechanical properties. In addition to the improvement in flow characteristics, this study presents the basic dimensionless characteristics in regression form, along with the measurement of the Metzner–Otto constant. These characteristics are essential for the use of the paddle mixer as an onsite rheometer, enabling rapid and straightforward evaluation of the desired rheological properties of the prepared mixture. The performance of the paddle mixer was assessed through homogenization experiments and power input measurements at various rotation speeds. The paddle mixer displayed creeping flow behavior up to a Re value of 50. The geometry of the paddle mixer was modified to achieve homogeneity throughout the volume, significantly influencing mixing mainly in the axial region of the mixer. To compensate for the non-Newtonian behavior, the Metzner–Otto approach was employed. Under creeping flow conditions and for pastes displaying flow index above 0.5, the paddle mixer can be characterized by a Metzner-Otto constant of 54.
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
20301 - Mechanical engineering
Result continuities
Project
<a href="/en/project/GA21-24070S" target="_blank" >GA21-24070S: Model of fibre segregation in dependence on rheological properties of fresh HPC</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chemical and Biochemical Engineering Quarterly
ISSN
0352-9568
e-ISSN
1846-5153
Volume of the periodical
38
Issue of the periodical within the volume
2
Country of publishing house
HR - CROATIA
Number of pages
8
Pages from-to
145-152
UT code for WoS article
001272592500004
EID of the result in the Scopus database
2-s2.0-85200205186