Numerical Analysis of Shrinkage Process Based on Experimental Data

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F20%3APU134765" target="_blank" >RIV/00216305:26110/20:PU134765 - isvavai.cz</a>
Result on the web
<a href="https://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&ID=51724622" target="_blank" >https://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&ID=51724622</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.14359/51724622" target="_blank" >10.14359/51724622</a>

Result language
angličtina
Original language name
Numerical Analysis of Shrinkage Process Based on Experimental Data
Original language description
This paper focuses on the comparison of experimentally obtained data with the shrinkage model B4 designed by a research group led by Professor Z. P. Bažant. Two cementitious materials, one having a high water-cement ratio (w/c) and one having a low w/c, were prepared for the experiment. Intentionally, the test specimens were not protected from drying during the entire period of measurement. Test results confirmed that the actual shrinkage process as measured does not correspond with the prediction model, especially during its early age. Shrinkage during the plastic and semi-plastic stages of the solidification process is not reflected in the predicted shrinkage curve. However, if the start time of the evaluation of the experimental data corresponds to the time of maximum derivatives of the temperature, length changes, and ultrasonic pulse velocity curves, better correspondence between the experiment and prediction model is observed for material with a low w/c. However, this approach does not improve the correspondence between the experiment and numerical prediction in the case of material with a high w/c.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20101 - Civil engineering

Project
<a href="/en/project/GA17-14302S" target="_blank" >GA17-14302S: Experimental analysis of the early-age volume changes in cement-based composites</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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